NCHRP 01-25(1) | Effects of Heavy Vehicle Characteristics on Pavement Response and Performance---Phase II | Completed | |
NCHRP 01-27 | Video Image Processing for Evaluating Pavement Surface Distress | Completed | |
NCHRP 01-28 | Laboratory Determination of Resilient Modulus for Flexible Pavement Design | Completed | |
NCHRP 01-28A | Harmonized Test Methods for Laboratory Determination of Resilient Modulus for Flexible Pavement Design | Completed | |
NCHRP 01-29 | Improved Surface Drainage of Pavements | Completed | |
NCHRP 01-30 | Support Under Portland Cement Concrete Pavements | Completed | |
NCHRP 01-31 | Smoothness Specifications for Pavements | Completed | |
NCHRP 01-32 | Systems for Design of Highway Pavements | Completed | |
NCHRP 01-33 | Methodology to Improve Pavement-Investment Decisions | Completed | |
NCHRP 01-34 | Performance of Subsurface Pavement Drainage | Completed | |
NCHRP 01-34A | Contributions of Pavement Structural Layers to Rutting of Flexible Pavements | Completed | |
NCHRP 01-34B | Effectiveness of Subsurface Drainage for HMA and PCC Pavements | Completed | |
NCHRP 01-34C | Effects of Subsurface Drainage on Performance of Asphalt and Concrete Pavements | Completed | |
NCHRP 01-34D | Effects of Subsurface Drainage on Performance of Asphalt and Concrete Pavements: Further Evaluation and Analysis of LTPP SPS-1 and SPS-2 Field Sections | Completed | |
NCHRP 01-35A | Guide for Pavement Management | Completed | |
NCHRP 01-36 | Determination of Pavement Damage from Super-Single and Singled-Out Dual Truck Tires | Completed | |
NCHRP 01-37 | Development of the 2002 Guide for the Design of New and Rehabilitated Pavement Structures | Completed | |
NCHRP 01-37A | Development of the 2002 Guide for the Design of New and Rehabilitated Pavement Structures: Phase II | Completed | |
NCHRP 01-37A(01) | Distribution Plan for the Recommended Mechanistic-Empirical Pavement Guide and Software | Completed | |
NCHRP 01-38 | Guide on Pavement Rehabilitation Strategies | Completed | |
NCHRP 01-39 | Traffic Data Collection, Analysis, and Forecasting for Mechanistic Pavement Design | Completed | |
NCHRP 01-40 | Facilitating the Implementation of the Guide for the Design of New and Rehabilitated Pavement Structures | Completed | The MEPDG software is now available from AASHTOWare as the Pavement ME Design program. |
NCHRP 01-40A | Independent Review of the Recommended Mechanistic-Empirical Design Guide and Software | Completed | |
NCHRP 01-40B | User Manual and Local Calibration Guide for the Mechanistic-Empirical Pavement Design Guide and Software | Completed | |
NCHRP 01-40D(01) | Technical Assistance to NCHRP and NCHRP Project 1-40A: Versions 0.9 and 1.0 of the M-E Pavement Design Software | Completed | |
NCHRP 01-41 | Models for Predicting Reflection Cracking of Hot-Mix Asphalt Overlays | Completed | |
NCHRP 01-42 | Top-Down Fatigue Cracking of Hot-Mix Asphalt Layers - Phase I | Completed | |
NCHRP 01-42A | Models for Predicting Top-Down Cracking of Hot-Mix Asphalt Layers | Completed | |
NCHRP 01-43 | Guide for Pavement Friction | Completed | |
NCHRP 01-44 | Measuring Tire-Pavement Noise at the Source | Completed | |
NCHRP 01-44(01) | Measuring Tire-Pavement Noise at the Source: Precision and Bias Statement | Completed | |
NCHRP 01-45 | Models for Estimating the Effects of Pavement Condition on Vehicle Operating Costs | Completed | |
NCHRP 01-46 | Handbook for Pavement Design, Construction, and Management | Completed | |
NCHRP 01-47 | Sensitivity Evaluation of MEPDG Performance Prediction | Completed | |
NCHRP 01-48 | Incorporating Pavement Preservation into the MEPDG | Completed | |
NCHRP 01-49 | Guidelines for Conducting Forensic Investigation of Highway Pavements | Completed | |
NCHRP 01-50 | Quantifying the Influence of Geosynthetics on Pavement Performance | Completed | |
NCHRP 01-51 | A Model for Incorporating Slab/Underlying Layer Interaction into the MEPDG Concrete Pavement Analysis Procedures | Completed | |
NCHRP 01-52 | A Mechanistic-Empirical Model for Top-Down Cracking of Asphalt Pavement Layers | Completed | |
NCHRP 01-53 | Proposed Enhancements to Pavement ME Design: Improved Consideration of the Influence of Subgrade and Unbound Layers on Pavement Performance | Completed | |
NCHRP 01-54 | Guidelines for Limiting Damage to Flexible and Composite Pavements Due to the Presence of Water | Completed | Publication decision pending. |
NCHRP 01-55 | Performance-Based Mix Design of Porous Friction Courses | Completed | |
NCHRP 01-57 | Standard Definitions for Comparable Pavement Cracking Data | Completed | The research will be completed through NCHRP Project 1-57A. |
NCHRP 01-57A | Developing Standard Definitions for Comparable Pavement Cracking Data | Completed | |
NCHRP 01-57B | Validating Proposed Definitions for Comparable Pavement Cracking Data | Active | Research in progress. |
NCHRP 01-58 | Quantifying the Effects of Implements of Husbandry on Pavements | Final | |
NCHRP 01-59 | The Influence of Subgrade Soils Susceptible to Shrink/Swell and/or Frost Heave on Pavement Performance | Final | Published as NCHRP Research Report 1096. |
NCHRP 01-60 | Measuring the Characteristics of Pavement Surface Images | Final | Published as NCHRP Research Report 1106. |
NCHRP 01-61 | Evaluation of Bonded Concrete Overlays on Asphalt Pavements | Final | Published as NCHRP Research Report 1007. The appendices are available as NCHRP WOD 329. |
NCHRP 01-62 | Impact of Flooding on the Resiliency of Pavement Systems | Active | Research in progress |
NCHRP 01-63 | Incorporating Traffic Speed Deflection Devices Measurements into Pavement Management and Design | Active | Research In Progress |
NCHRP 01-64 | Development of Longitudinal Cracking Models for Concrete Pavements | RFP | |
NCHRP 02-14 | Public/Private Partnerships for Financing Highway Improvements | Final | |
NCHRP 02-15 | Identifying Measuring, and Evaluating the Benefits of Safety Roadside Rest Areas | Final | |
NCHRP 02-16 | Relationships Between Vehicle Configurations and Highway Design | Final | |
NCHRP 02-17(1) | Methodologies for Evaluating the Effects of Transportation Policies on the Economy | Final | |
NCHRP 02-17(2) | Workshop on Research Needs in Transportation and Economic Development | Completed | |
NCHRP 02-17(3) | Macroeconomic Analysis of the Linkages Between Transportation Investments and Economic Performance | Completed | |
NCHRP 02-17(3)A | Update and Enhancement of Dataset for Macroeconomic Analysis of Transportation Investments and Economic Performance | Completed | |
NCHRP 02-17(4) | Measuring the Relationship Between Freight Transportation Services and Industry Productivity | Completed | |
NCHRP 02-17(5) | Impact of Urban Congestion on Business | Final | |
NCHRP 02-17(6) | Tourism Travel Contributions to Economic Development | Completed | |
NCHRP 02-18 | Research Strategies for Improving Highway User Cost-Estimating Methodologies | Completed | |
NCHRP 02-18(2) | Valuation of Travel-Time Savings and Predictability in Congested Conditions for Highway User-Cost Estimation | Completed | |
NCHRP 02-18(3) | Development of an Innovative Highway User-Cost Estimation Procedure | Completed | |
NCHRP 02-18(4) | Development and Demonstration of StratBENCOST Procedure | Completed | |
NCHRP 02-19 | Research on the Relationship Between Economic Development and Transportation Investment | Completed | |
NCHRP 02-19(2) | Guidance on Using Existing Analytic Tools for Evaluating Transportation Investments | Completed | |
NCHRP 02-20 | Economic Trends and Multimodal Transportation Requirements | Completed | |
NCHRP 02-21 | Economic Implications of Congestion | Completed | |
NCHRP 02-22 | Needs in Communicating the Economic Impacts of Transportation Investment | Completed | |
NCHRP 02-22(2) | Case Studies on Communicating the Economic Benefits of Transportation Investments | Completed | |
NCHRP 02-23 | Development of an Update to the 1977 AASHTO Redbook | Completed | |
NCHRP 02-24 | Economic Productivity and Transportation Investment Priorities | Final | |
NCHRP 02-25 | Workforce 2030--Attracting, Retaining, and Developing the Transportation Workforce: Design, Construction, and Maintenance | Final | NCHRP Research Report 1008: Workforce 2030: Attracting, Retaining, and Developing the 2030 Transportation Workforce: Design, Construction, and Maintenance |
NCHRP 02-26 | Implementation of Life-Cycle Planning Analysis in a Transportation Asset Management Framework | Final | |
NCHRP 02-27 | Making Targets Matter: Managing Performance to Enhance Decision-Making | Final | |
NCHRP 03-100 | Evaluating the Performance of Corridors with Roundabouts | Final | |
NCHRP 03-101 | Costs and Benefits of Public-Sector Deployment of Vehicle to Infrastructure Technologies | Final | |
NCHRP 03-102 | Design Guidance for Intersection Auxiliary Lanes | Final | |
NCHRP 03-103 | Update of the Signal Timing Manual | Final | |
NCHRP 03-104 | Unsignalized Intersection Guide | Final | |
NCHRP 03-105 | Design Guidance for Interchange Loop Ramps | Final | |
NCHRP 03-106 | Traffic Control Device Guidelines for Curves | Completed | |
NCHRP 03-107 | Work Zone Capacity Methods for the Highway Capacity Manual | Completed | |
NCHRP 03-108 | Guidance on Quantifying Benefits of TIM Strategies | Final | |
NCHRP 03-109 | Potential MUTCD Criteria for Selecting the Type of Control for Unsignalized Intersections | Final | |
NCHRP 03-110 | Estimating the Life-Cycle Cost of Intersection Designs | Final | |
NCHRP 03-111 | Effectiveness of Work Zone Transportation Management Plan (TMP) Strategies | Final | |
NCHRP 03-112 | Operational and Safety Considerations in Making Lane Width Decisions on Urban and Suburban Arterials | Final | Further work will be conducted under NCHRP 03-112A in 2019 |
NCHRP 03-112A | Guidelines for Selecting Lane Widths on Urban and Suburban Arterials | Final | NCHRP canceled this project and reallocated project funds to NCHRP Program |
NCHRP 03-113 | Guidance for Traffic Signals at Diverging Diamond Interchanges and Adjacent Intersections | Final | Published as NCHRP Report 959 |
NCHRP 03-114 | Planning and Evaluating Active Traffic Management Strategies | Final | Further work will be conducted under NCHRP Project 03-114(01) |
NCHRP 03-114(01) | Planning and Evaluating Active Traffic Management Strategies | Final | |
NCHRP 03-115 | Production of a Major Update to the 2010 Highway Capacity Manual | Final | |
NCHRP 03-117 | Traffic Control Devices and Measures for Deterring Wrong-Way Movements | Final | |
NCHRP 03-118 | Decision-Making Guide for Traffic Signal Phasing | Final | |
NCHRP 03-119 | Application of MASH Test Criteria to Breakaway Sign and Luminaire Supports and Crashworthy Work-Zone Traffic Control Devices | Final | Continued under NCHRP 03-119(01) |
NCHRP 03-119(01) | Application of MASH Test Criteria to Breakaway Sign and Luminaire Supports and Crashworthy Work Zone Traffic Control Devices | Active | Research in progress. Continuation from NCHRP 03-119. |
NCHRP 03-120 | Assessing Interactions Between Access Management Treatments and Multimodal Users | Final | |
NCHRP 03-121 | Incorporating Freight, Transit, and Incident Response Stakeholders into Integrated Corridor Management (ICM): Processes and Strategies for Implementation | Final | |
NCHRP 03-122 | Performance-Based Management of Traffic Signals | Final | Published as NCHRP Report 954 |
NCHRP 03-123 | Proposed Practices for the Application of Dynamic Lane Use Control | Final | Published as NCHRP Research Report 1021. |
NCHRP 03-124 | Principles and Guidance for Presenting Drivers with Dynamic Information on Active Traffic Management | Final | |
NCHRP 03-125 | Evaluation of Change and Clearance Intervals Prior to the Flashing Yellow Arrow Permissive Left-Turn Indication | Final | Published as NCHRP WOD 394. |
NCHRP 03-126 | Transportation Operations Manual | Final | |
NCHRP 03-127 | Cybersecurity of Traffic Management Systems | Final | |
NCHRP 03-127(01) | Cybersecurity of Traffic Management Systems (Continuation) | Final | Project Cancelled |
NCHRP 03-128 | Business Intelligence Techniques for Transportation Agency Decision Making | Final | Published as NCHRP Research Report 1099. |
NCHRP 03-129 | Essential Communications: A Guide to Land Mobile Radio (LMR) | Final | Phase II will be conducted under NCHRP Project 03-129A |
NCHRP 03-129A | Emerging Land Mobile Radio Communications Guide | Active | |
NCHRP 03-130 | Guide for Roundabouts | Final | |
NCHRP 03-131 | Guidance for Planning and Implementing Multimodal, Integrated Corridor Management | Final | Published as NCHRP Web-Only Document 287 |
NCHRP 03-132 | Guidance for Safe and Effective Temporary Traffic Control for Mobile Operations on Two-Lane Two-Way Roadways | Final | |
NCHRP 03-133 | Traffic Signal Control Strategies for Pedestrians and Bicyclists | Final | Published as NCHRP Research Report 969: Traffic Signal Control Strategies for Pedestrians and Bicyclists |
NCHRP 03-134 | Determination of Encroachment Conditions in Work Zones | Final | Published as NCHRP Research Report 1055 |
NCHRP 03-135 | Wrong-Way Driving Solutions, Policy, and Guidance | Final | Published as NCHRP Research Report 1050 |
NCHRP 03-136 | Evaluating the Performance of Right-Turn-On-Red Operation at Signalized Intersections (with single and dual right-turn lanes) | Final | |
NCHRP 03-137 | Algorithms to Convert Basic Safety Messages into Traffic Measures | Final | Research is Complete. Published report number is NCHRP Research Report 997 |
NCHRP 03-138 | Application of Big Data Approaches for Traffic Incident Management (TIM) | Final | Published as NCHRP Research Report 1071. |
NCHRP 03-139 | Next Generation of the USLIMITS2 Speed Limit Setting Expert System | Final | Continued under NCHRP 03-139(01). |
NCHRP 03-140 | Guidelines for Applications of RFID and Wireless Technologies in Highway Construction and Asset Management | Final | The final deliverables have been published as NCHRP Research Report 1063 and NCHRP Web-Only Document 364 |
NCHRP 03-141 | Guidance on Midblock Pedestrian Signals (MPS) | Final | |
NCHRP 03-142 | Evaluating the Impacts of Real-Time Warnings and Variable Speed Limits on Safety and Travel Reliability during Weather Events | Active | Research in progress. |
NCHRP 03-143 | Framework and Toolkit for Selecting Pedestrian Crossing Treatments | Active | Research in progress |
NCHRP 03-144 | Leveraging Existing Traffic Signal Assets to Obtain Quality Traffic Counts and Enhance Transportation Monitoring Programs | Active | Research in progress |
NCHRP 03-145 | National Traffic Sensor System Evaluation Program | Active | Research in progress |
NCHRP 03-146 | Guide for Transportation Operations Manual Implementation | Active | |
NCHRP 03-147 | LED Applications on Traffic Control Devices | Active | Research in progress. |
NCHRP 03-148 | Preparing for Virtual Operation of Traffic Management Systems | Active | Research in progress |
NCHRP 03-149 | Evaluation of the Traffic Signal Timing Manual, Third Edition | Active | |
NCHRP 03-150 | Update to Procedure for Determining Work Zone Speed Limits | Pending | |
NCHRP 03-151 | Data Subsystems and Data Management Plans for Traffic Management Systems | Active | |
NCHRP 03-152 | Managing the Life Cycle of Software for Evolving Traffic Management Systems | RFP | |
NCHRP 03-153 | Audible Indications for Accessible Pedestrian Signals | RFP | |
NCHRP 03-28 | Effects of Quality of Traffic Signal Progression on Delay | Final | |
NCHRP 03-32 | Temporary Pavement Markings for Work Zones | Final | |
NCHRP 03-33 | Capacity and Level-of-Service Procedures for Multilane Rural and Suburban Highways | Final | |
NCHRP 03-35 | Speed-Change Lanes | Final | |
NCHRP 03-36 | Development of a Low-Cost Bridge Weigh-In-Motion System | Completed | |
NCHRP 03-37 | Capacity and Level of Service at Ramp-Freeway Junctions | Final | |
NCHRP 03-37(2) | Capacity and Level of Service at Ramp-Freeway Junctions (Phase II) | Final | |
NCHRP 03-38(1) | Assessment of Advanced Technologies for Relieving Urban Traffic Congestion | Final | |
NCHRP 03-38(1)A | A Study to Assess Advanced Vehicle and Highway Technologies | Final | |
NCHRP 03-38(2) | Travel Characteristics of Large-Scale Suburban Activity Centers | Final | |
NCHRP 03-38(3) | Traffic Adaptive Control (Phase 1)---Critical Intersection Control Strategies; (Phase 2)---OPAC Control Strategies | Completed | |
NCHRP 03-38(4) | Traffic Signal Control for Saturated Conditions | Completed | |
NCHRP 03-38(5) | Effective Utilization of Street Width | Final | |
NCHRP 03-38(6) | Cost Sharing for Transportation Improvements Near Major Suburban Employment Centers | Final | |
NCHRP 03-38(7) | Access Management Policies and Guidelines for Activity Centers | Final | |
NCHRP 03-39 | Evaluation and Calibration Procedures for Weigh-In-Motion Systems | Completed | |
NCHRP 03-39(2) | On-Site Evaluation and Calibration Procedures for Weigh-In-Motion Systems | Completed | |
NCHRP 03-40 | Single Point Urban Interchange Design and Operations Analysis | Final | |
NCHRP 03-41 | Procedure for Determining Work Zone Speed Limits | Completed | |
NCHRP 03-41(2) | Effectiveness and Implementability of Procedures for Work Zone Speed Limits | Completed | |
NCHRP 03-42 | Determination of Stopping Sight Distances | Completed | |
NCHRP 03-43 | Use of Shoulders and Narrow Lanes to Increase Freeway Capacity | Final | |
NCHRP 03-44 | Improved Traffic Control Device Design and Placement to Aid the Older Driver | Completed | |
NCHRP 03-45 | Speed-Flow Relationships for Basic Freeway Segments | Final | |
NCHRP 03-46 | Capacity and Level of Service at Unsignalized Intersections | Final | |
NCHRP 03-47 | Capacity Analysis of Interchange Ramp Terminals | Final | |
NCHRP 03-48 | Capacity Analysis for Actuated Intersections | Final | |
NCHRP 03-49 | Capacity and Operational Effects of Midblock Left-Turn Lanes | Final | |
NCHRP 03-50 | Driver Information Overload | Completed | |
NCHRP 03-50(2) | Additional Investigations on Driver Information Overload | Completed | |
NCHRP 03-51 | Communications Mediums for Signal, IVHS, and Freeway Surveillance Systems | Completed | |
NCHRP 03-52 | Impacts of Access-Management Techniques | Final | |
NCHRP 03-52A | Impacts of Access-Management Techniques | Final | |
NCHRP 03-53 | Development of a HOV Systems Manual | Completed | |
NCHRP 03-54 | Uniform Traffic Signal Displays for Protected/Permissive Left Turn Control | Final | |
NCHRP 03-54(2) | Evaluation of Traffic Signal Displays for Protected/Permissive Left Turn Control | Final | |
NCHRP 03-55 | A Highway Capacity Manual for the Year 2000 | Final | |
NCHRP 03-55(2) | Techniques to Estimate Speeds and Service Volumes for Planning Applications | Final | |
NCHRP 03-55(2)A | Planning Applications for the Year 2000 Highway Capacity Manual | Completed | |
NCHRP 03-55(3) | Capacity and Quality of Service for Two-Lane Highways | Completed | |
NCHRP 03-55(4) | Performance Measures and Levels of Service in the Year 2000 Highway Capacity Manual | Final | |
NCHRP 03-55(5) | Capacity and Quality of Service of Weaving Areas | Completed | |
NCHRP 03-55(6) | Production of the Year 2000 Highway Capacity Manual | Final | |
NCHRP 03-56 | Systemwide Impact of Safety and Traffic Operation Design Decisions for Resurfacing, Restoration, or Rehabilitation (RRR) Projects | Completed | |
NCHRP 03-57 | Recommended Traffic-Control Devices for Railroad-Highway Grade Crossings | Completed | |
NCHRP 03-58 | Assessing Traffic Control Signal Installations Using Capacity Analysis and Simulation | Completed | |
NCHRP 03-59 | Assessment of Variable Speed Limit Implementation Issues | Completed | |
NCHRP 03-60 | Capacity and Quality of Service of Interchange Ramp Terminals | Completed | Results incorporated into the HCM |
NCHRP 03-60A | Validation and Enhancement of the Highway Capacity Manual’s Interchange Ramp Terminal Methodology | Final | |
NCHRP 03-61 | Communicating Changes in Horizontal Alignment | Completed | |
NCHRP 03-62 | Guidelines for Accessible Pedestrian Signals | Completed | |
NCHRP 03-63 | Assessment of Sharing Information Between Public Safety and Transportation Agencies for Traffic-Incident Management | Completed | |
NCHRP 03-64 | Highway Capacity Manual Applications Guide | Final | |
NCHRP 03-65 | Applying Roundabouts in the United States | Final | |
NCHRP 03-65A | Update of 'Roundabouts: An Informational Guide' | Final | |
NCHRP 03-66 | Traffic Signal State Transition Logic Using Enhanced Sensor Information | Completed | |
NCHRP 03-67 | Expert System for Recommending Speed Limits in Speed Zones | Completed | |
NCHRP 03-68 | Guide to Effective Freeway Performance Measurement | Completed | |
NCHRP 03-69 | Design of Construction Work Zones on High-Speed Highways | Completed | |
NCHRP 03-70 | Multimodal Level of Service Analysis For Urban Streets | Completed | |
NCHRP 03-71 | Innovative Pedestrian Treatments at Unsignalized Crossings | Completed | |
NCHRP 03-72 | Lane Widths, Channelized Right Turns, and Right-Turn Deceleration Lanes in Urban and Suburban Areas | Final | |
NCHRP 03-73 | Separation of Vehicles - CMV Only Lanes | Final | Completed. Published as NCHRP Report 649/NCFRP Report 3. |
NCHRP 03-74 | Guidelines for Selection of Speed Reduction Treatments at High-Speed Intersections | Completed | |
NCHRP 03-75 | Analysis of Freeway Weaving Sections | Completed | |
NCHRP 03-76A | Highway Traffic Signal Warrant For Intersections Near Highway-Rail Grade Crossings | Completed | Results incorporated into the MUTCD |
NCHRP 03-76B | Low-Cost Active Warning Systems for Highway-Rail Grade Crossings | Final | |
NCHRP 03-77 | Guide to Contracting Intelligent Transportation System Projects | Final | |
NCHRP 03-78 | Crossing Solutions at Roundabouts and Channelized Turn Lanes for Pedestrians with Vision Disabilities | Completed | |
NCHRP 03-78A | Crossing Solutions at Roundabouts and Channelized Turn Lanes for Pedestrians with Vision Disabilities | Completed | |
NCHRP 03-78B | Guidelines for the Application of Crossing Solutions at Roundabouts and Channelized Turn Lanes to Assist Pedestrians with Vision Disabilities | Completed | |
NCHRP 03-78C | Training and Technology Transfer for Accessability Guidelines for Roundabouts and Channelized Turn Lanes | Final | |
NCHRP 03-79 | Measuring and Predicting the Performance of Automobile Traffic on Urban Streets | Final | |
NCHRP 03-79A | Arterial Performance Measures | Final | |
NCHRP 03-80 | Traffic Enforcement Strategies for Work Zones | Final | |
NCHRP 03-81 | Strategies for Integrated Operation of Freeway and Arterial Corridors | Completed | |
NCHRP 03-82 | Default Values for Capacity and Quality of Service Analyses | Completed | Published as NCHRP Report 599 |
NCHRP 03-83 | Low-Cost Improvements for Recurring Freeway Bottlenecks | Final | |
NCHRP 03-84 | Guide for Multistate Transportation Operations Programs | Completed | Report delivered to AASHTO for publication. |
NCHRP 03-85 | Guidance for the Use of Alternative Traffic Analysis Tools in Highway Capacity Analyses | Final | |
NCHRP 03-87 | Proactive Ramp Management Under the Threat of Freeway-Flow Breakdown | Completed | |
NCHRP 03-88 | Guidelines for Ramp and Interchange Spacing | Completed | The revised final report has been received and is being prepared for publication. |
NCHRP 03-89 | Design Guidance for Channelized Right-Turn Lanes | Final | |
NCHRP 03-90 | Operation of Traffic Signal Systems in Oversaturated Conditions | Final | |
NCHRP 03-91 | Left-Turn Accommodations at Unsignalized Intersections | Final | |
NCHRP 03-92 | Production of the Year 2010 Highway Capacity Manual | Final | |
NCHRP 03-93 | Automated Enforcement for Speeding and Red Light Running | Completed | NCHRP Report 729: Automated Enforcement for Speeding and Red Light Running |
NCHRP 03-94 | Transportation Systems Operations and Management Guide | Final | |
NCHRP 03-95 | Guidelines for Timing Yellow and All-Red Intervals at Signalized Intersections | Completed | NCHRP Report 731: Guidelines for Timing Yellow and All-Red Intervals at Signalized Intersections |
NCHRP 03-96 | Analysis of Managed Lanes on Freeway Facilities | Final | |
NCHRP 03-96A | Analysis of Oversaturated Traffic Flow Conditions on Freeway Facilities | Final | The project is canceled |
NCHRP 03-97 | Traffic Signal Analysis with Varying Demands and Capacities | Completed | |
NCHRP 03-98 | Guidelines on the Use of Auxiliary Through Lanes at Signalized Intersections | Final | Final Report published as NCHRP Report 707 |
NCHRP 03-99 | Development and Application of Access Management Guidelines | Final | |
NCHRP 04-15 | Corrosion Protection of Prestressing Systems in Concrete Bridges | Completed | |
NCHRP 04-16 | Cost and Service Life of Pavement Markings | Completed | |
NCHRP 04-18 | Design and Evaluation of Large Stone Mixtures | Completed | |
NCHRP 04-19 | Aggregate Tests Related to Asphalt Concrete Performance in Pavements | Completed | |
NCHRP 04-19(2) | Validation of Performance-Related Tests of Aggregates for Use in Hot-Mix Asphalt Pavements | Completed | |
NCHRP 04-20 | Aggregate Tests Related to Performance of Portland Cement Concrete | Completed | |
NCHRP 04-20A | State of the Art Report and Plan for Research on Aggregates Tests Related to Performance of Portland Cement Concrete Pavements | Completed | |
NCHRP 04-20B | Aggregate Tests Related to Performance of Portland Cement Concrete Pavements | Completed | |
NCHRP 04-20C | Aggregate Tests Related to Performance of Portland Cement Concrete Pavements: State of the Knowledge | Completed | |
NCHRP 04-21 | Appropriate Use of Waste and Recycled Materials in the Transportation Industry | Final | |
NCHRP 04-22 | Pavement-Marking Materials: Health, Environmental, and Performance Assessment | Completed | |
NCHRP 04-23 | Performance-Related Tests of Aggregates for Use in Unbound Pavement Layers | Completed | |
NCHRP 04-24 | HDPE Pipe Material Specifications and Design Requirements | Completed | |
NCHRP 04-25 | Implementation Plan for Automating Highway-Materials Testing | Completed | |
NCHRP 04-26 | Thermoplastic Drainage Pipe, Design and Testing | Completed | The project final report is available as NCHRP Report 631. |
NCHRP 04-27 | Application of Fiber Reinforced Polymer (FRP) Composites to the Highway Infrastructure: Strategic Plan | Completed | |
NCHRP 04-28 | Feasibility Study for an All-White Pavement Marking System | Completed | |
NCHRP 04-29 | Selection of Materials to Optimize Sign Performance | Completed | |
NCHRP 04-30 | Test Methods for Characterizing Aggregate Shape, Texture, and Angularity | Completed | |
NCHRP 04-30A | Test Methods for Characterizing Aggregate Shape, Texture, and Angularity | Completed | |
NCHRP 04-31 | Tests of Recycled Aggregates for Use in Unbound Pavement Layers | Completed | |
NCHRP 04-32 | Performance and Quality Control of Corrugated Pipe Manufactured with Recycled Polyethylene Content | Completed | The project final report is available as NCHRP Report 696. |
NCHRP 04-33 | Procedures for Testing and Evaluating Detectable Warning Systems | Completed | |
NCHRP 04-34 | Application of LADAR in the Analysis of Aggregate Characteristics | Completed | |
NCHRP 04-35 | Improved Test Methods for Specific Gravity and Absorption of Coarse and Fine Aggregate | Completed | |
NCHRP 04-36 | Characterization of Cementitiously Stabilized Layers for Use in Pavement Design and Analysis | Completed | |
NCHRP 04-37 | Long-Term Performance of Epoxy Adhesive Anchor Systems | Completed | The project final report is available as NCHRP Project 757. |
NCHRP 04-38 | Recommended Laboratory Test for Predicting the Initial Retroreflectivity of Pavement Markings from Glass Bead Quality | Completed | The project final report is available as NCHRP Report 743. |
NCHRP 04-39 | Field Performance of Corrugated Pipe Manufactured with Recycled Polyethylene Content | Completed | |
NCHRP 04-40 | Reliability-Based Geotechnical Resistance Factors for Axially-Loaded Micropiles | Final | |
NCHRP 04-41 | Deterioration Rates and Unit Costs for Geotechnical Assets | Final | Project is cancelled |
NCHRP 05-10 | A Mobile System for Measuring Retroreflectance of Traffic Signs | Completed | |
NCHRP 05-11 | Implementation Strategies for Sign Retroreflectivity Standards | Final | |
NCHRP 05-12 | Requirements for Application of Light Emitting Diodes (LEDs) to Traffic Control Signals | Final | |
NCHRP 05-13 | Illumination Guidelines for Nighttime Highway Work | Completed | |
NCHRP 05-13(2) | Illumination Guidelines for Nighttime Highway Work | Completed | |
NCHRP 05-14 | Advance Warning Arrow Panel Visibility | Completed | |
NCHRP 05-15 | Visibility Performance Requirements for Vehicular Traffic Signals | Completed | |
NCHRP 05-16 | National Calibration Standards for Measuring Retroreflectivity | Completed | |
NCHRP 05-17 | Safety Evaluation of Permanent Raised Pavement Markers | Completed | |
NCHRP 05-18 | Color Effectiveness of Yellow Pavement Marking Materials | Completed | |
NCHRP 05-19 | Guidelines for Roadway Lighting Based on Safety Benefits and Costs | Completed | The research has been terminated. Papers on various aspects of the research are available at the links provided below. |
NCHRP 05-20 | Guidelines for Nighttime Visibility of Overhead Guide Signs | Completed | |
NCHRP 05-21 | Safety and Performance Criteria for Retroreflective Pavement Markers | Final | Research complete. Final Report published as NCHRP Research Report 1015 |
NCHRP 05-22 | Guidelines for Solid-State Roadway Lighting | Completed | |
NCHRP 05-22A | Gaps and Emerging Technologies in the Application of Solid-State Roadway Lighting | Completed | Publication decision pending. |
NCHRP 05-23 | Effects of LED Roadway Lighting on Driver Sleep Health and Alertness | Completed | |
NCHRP 05-24 | Development of Guidelines for Vehicle and Equipment Marking and Lighting | Final | Published as NCHRP Report 1085 on 1/23/2024 |
NCHRP 05-25 | Guide to the Contextual Application of Overhead Lighting on Highways | Active | |
NCHRP 05-26 | Development of Updated Warrants for Roadway Lighting | Active | Research in progress. |
NCHRP 05-27 | Guide for Lighting at Innovative Intersections/Interchanges, including Roundabouts | Active | Research in progress |
NCHRP 06-12 | Improved Visibility for Snow Plowing Operations | Completed | |
NCHRP 06-13 | Guidelines for Snow and Ice Control Materials and Methods | Completed | |
NCHRP 06-14 | Feasibility of Using Friction Indicators to Improve Winter Maintenance Operations and Mobility | Completed | |
NCHRP 06-15 | Testing and Calibration Methods for RWIS Sensors | Completed | |
NCHRP 06-16 | Guidelines for the Selection of Snow and Ice Control Materials To Mitigate Environmental Impacts | Completed | |
NCHRP 06-17 | Performance Measures for Snow and Ice Control Operations | Completed | |
NCHRP 06-18 | Guide for Snow and Ice Control Operations | Completed | |
NCHRP 06-19 | Guidebook for Mechanical Methods for Snow and Ice Control Operations | Final | |
NCHRP 07-12 | Microcomputer Evaluation of Highway User Benefits | Completed | |
NCHRP 07-12(2) | Metrication and Enhancement of MicroBENCOST Software Package | Completed | |
NCHRP 07-13 | Quantifying Congestion | Final | |
NCHRP 07-14 | Guidelines for Analysis of Investments in Bicycle Facilities | Completed | |
NCHRP 07-15 | Cost-Effective Measures and Planning Procedures for Travel Time, Delay, and Reliability | Final | |
NCHRP 07-16 | Recommended Revisions to the AASHTO Guidelines for Traffic Data Programs | Final | |
NCHRP 07-17 | Pedestrian and Bicycle Transportation along Existing Roads | Final | |
NCHRP 07-18 | Crash Experience Warrant for Traffic Signals | Final | |
NCHRP 07-19 | Methods and Technologies for Collecting Pedestrian and Bicycle Volume Data | Final | Guidebook published as NCHRP Report 797; final research report is available as Web-only Document 205 |
NCHRP 07-20 | Guidance for Implementation of Traffic Incident Management Performance Measurement | Final | |
NCHRP 07-21 | Asset Management Guidance for Traffic Control Devices, Barriers, and Lighting | Active | |
NCHRP 07-22 | Planning and Preliminary Engineering Applications Guide to the Highway Capacity Manual | Final | Published as NCHRP Report 825 |
NCHRP 07-23 | Access Management in the Vicinity of Interchanges | Final | Final report NCHRP Research Report 977 Volumes 1 and 2 are available. |
NCHRP 07-24 | Estimating the Value of Truck Travel Time Reliability | Final | Published as NCHRP Research Report 925 |
NCHRP 07-25 | Guide for Pedestrian and Bicycle Safety at Alternative Intersections and Interchanges (A.I.I.) | Final | Published as NCHRP Research Report 948 |
NCHRP 07-26 | Update of Highway Capacity Manual: Merge, Diverge, and Weaving Methodologies | Final | Published as NCHRP Research Report 1038 |
NCHRP 07-27 | An Update of the Green Book Design Vehicles Requirements | Final | Published as NCHRP Research Report 1061. |
NCHRP 07-28 | Assessing the Safety Impacts of Right-Turn Lanes on Rural and Suburban Highways | Final | NCHRP 07-28 has been divided into NCHRP 07-28(01) and NCHRP 07-28(02) |
NCHRP 07-28(01) | Assessing the Impacts of Right-Turn Lanes on Rural and Suburban Highways | Final | Final report published as NCHRP Research Report 1062. |
NCHRP 07-28(02) | Assessing the Multimodal Safety Performance of Turn Lanes | Active | Research in progress. |
NCHRP 07-29 | Development of the 8th Edition of AASHTO's A Policy on the Geometric Design of Highways and Streets (Green Book) | Active | Research in progress. |
NCHRP 07-30 | Methods for Assigning Short-Duration Traffic Volume Counts to Adjustment Factor Groups for Estimating AADT | Final | |
NCHRP 07-31 | State DOT and Tribal Use of Active Transportation Data: Practices, Sources, Needs, and Gaps | Active | Research in progress |
NCHRP 07-32 | Guide for Long-Term Automated Traffic Signal Performance Measurement Systems Applications | Active | Research in progress. |
NCHRP 07-33 | Evaluate the Benefits of Increasing Clear Zone at Higher Speed/Traffic Volume/Crash Locations | Active | Research is progress. |
NCHRP 07-34 | Artificial Intelligence for Transportation Systems Management and Operations Applications | Active | |
NCHRP 07-35 | Improving Crash Data for Active Transportation Users | Active | Research underway |
NCHRP 07-36 | Guide for Self-Explaining Roads in the Context of the Safe System Approach | Active | Research in progress |
NCHRP 07-37 | Modern and Proven Approaches to Planning, Design, and Operation of Pedestrian Facilities | RFP | |
NCHRP 08-100 | Environmental Justice Analyses When Considering Toll Implementation or Rate Changes | Completed | |
NCHRP 08-101 | Enhanced Truck Data Collection and Analysis for Emissions Modeling | Final | Published as NCHRP Report 909 |
NCHRP 08-102 | Bicyclist Facility Preferences and Effects on Increasing Bicycle Trips | Final | |
NCHRP 08-103 | Implementing NCHRP Report 806: Guide to Cross-Asset Resource Allocation and the Impact on Transportation System Performance | Final | Published as NCHRP Research Report 921 |
NCHRP 08-104 | A Guidebook for Post-Award Contract Administration for Highway Projects Delivered Using Alternative Contracting Methods | Completed | |
NCHRP 08-105 | Measuring the Effectiveness of Public Involvement in Transportation Planning and Project Delivery | Final | |
NCHRP 08-106 | Metropolitan Freight Transportation: Implementing Effective Strategies | Final | Published as NCHRP Report 897. |
NCHRP 08-107 | A Guidebook for Emergency Contracting Procedures for Administration of a Regional Emergency | Final | |
NCHRP 08-108 | Developing National Performance Management Data Strategies to Address Data Gaps, Standards, and Quality | Final | |
NCHRP 08-109 | Updating the AASHTO Transportation Asset Management Guide—A Focus on Implementation, Phase 1 | Completed | |
NCHRP 08-110 | Traffic Forecasting Accuracy Assessment Research | Completed | |
NCHRP 08-111 | Effective Decision-Making Methods for Freight-Efficient Land Use | Final | |
NCHRP 08-112 | A Guidebook for Implementing Alternative Technical Concepts into Project Delivery Methods | Final | Final publication now available. |
NCHRP 08-113 | Integrating Effective Transportation Performance, Risk, and Asset Management Practices | Final | Published as NCHRP Research Report 985 |
NCHRP 08-114 | Systematic Approach for Determining Construction Contract Time: A Guidebook | Final | Work completed under NCHRP 08-114A and published as NCHRP Research Report 979 |
NCHRP 08-114A | Systematic Approach for Determining Construction Contract Time: A Guidebook | Final | |
NCHRP 08-115 | Guidebook for Data and Information Systems for Transportation Asset Management | Final | |
NCHRP 08-116 | Framework for Managing Data from Emerging Transportation Technologies to Support Decision-Making | Final | NCHRP Research Report 1008: Workforce 2030: Attracting, Retaining, and Developing the 2030 Transportation Workforce: Design, Construction, and Maintenance |
NCHRP 08-117 | Impact of Transformational Technologies on Land Use and Transportation | Final | |
NCHRP 08-118 | Risk Assessment Techniques for Transportation Asset Management | Final | |
NCHRP 08-119 | Data Integration, Sharing, and Management for Transportation Planning and Traffic Operations | Completed | |
NCHRP 08-120 | Initiating the Systems Engineering Process for Rural Connected Vehicle Corridors | Final | Final report NCHRP 978 is now available. |
NCHRP 08-121 | Accessibility Measures in Practice: Guidance for Transportation Agencies | Final | |
NCHRP 08-122 | Metropolitan Planning Organizations: Strategies for Future Success | Final | |
NCHRP 08-123 | Census Transportation Data Field Guide for Transportation Applications | Final | Published as NCHRP Research Report 1108. |
NCHRP 08-124 | Quantifying the Impacts of Corridor Management | Final | Project deliverables have been published and may be found here: https://nap.nationalacademies.org/catalog/27477/quantifying-the-impacts-of-corridor-management |
NCHRP 08-125 | Attracting, Retaining, and Developing the Transportation Workforce: Transportation Planners | Final | |
NCHRP 08-128 | Snapshots of Planning Practices | Active | |
NCHRP 08-129 | Incorporating Resilience Concepts and Strategies in Transportation Planning | Final | Published as NCHRP Research Report 1052: Integrating Resilience Concepts into Transportation Planning |
NCHRP 08-130 | Best Practices in Coordination of Public Transit and Ride Sharing | Active | Research in progress. |
NCHRP 08-131 | Access to Jobs, Economic Opportunities, and Education in Rural Areas | Final | |
NCHRP 08-132 | Accessing America's Great Outdoors: Forecasting Recreational Travel Demand | Final | |
NCHRP 08-133 | Implementing the National Intercity Bus Atlas | Final | Phases II and III will be executed under NCHRP 08-133(01) |
NCHRP 08-133(01) | Implementing the National Intercity Bus Atlas (Phases II and III) | Active | Changed Staff Officer - 9.14.23 |
NCHRP 08-134 | Integrating Freight Movement into 21st Century Communities' Land Use, Design, and Transportation Systems | Final | |
NCHRP 08-135 | Reliability and Quality of Service Evaluation Methods for Rural Highways | Final | |
NCHRP 08-136 | Guidebook on Using Performance-Based Management Approaches for Maintenance | Active | Research in progress. |
NCHRP 08-137 | Updates to the Digital Edition of the AASHTO Transportation Asset Management Guide | Final | |
NCHRP 08-138 | Guide to the Integration of Transportation Systems Management and Operations into Transportation Asset Management | Active | |
NCHRP 08-139 | Guide for Preventing and Mitigating the Risk of Bridge and Tunnel Strikes by Motor Vehicles | Completed | The final deliverables will be published as NCHRP Research Report 1132 and NCHRP Web-Only Document 411 |
NCHRP 08-140 | Guide for Truck Parking Information Management Systems | Completed | |
NCHRP 08-141 | A Guidebook for Local Truck Parking Regulations | Active | Research in progress. |
NCHRP 08-142 | Virtual Public Involvement: A Manual for Effective, Equitable, and Efficient Practices for Transportation Agencies | Completed | In publication process |
NCHRP 08-143 | Guide to the Application of Spatial Segmentation on Travel Time Reliability Measures | Active | |
NCHRP 08-144 | Rural Transit Fleet Mix and Vehicle Size Decision Trees | Active | Research in progress |
NCHRP 08-145 | Utilizing Cooperative Automated Transportation (CAT) Data to Enhance Freeway Operational Strategies | Final | |
NCHRP 08-146 | Integrating Resiliency into Transportation System Operations | Completed | Final deliverables pending |
NCHRP 08-147 | Improving Public Transportation in Rural Areas and Tribal Communities | Completed | |
NCHRP 08-148 | A Guide for Management of Out-of-Service Facilities | Active | Research in progress. |
NCHRP 08-149 | Estimating Benefits of Closing Gaps in Active Transportation Networks | Completed | In publication process |
NCHRP 08-150 | Tools to Integrate Equity into Active Transportation and Safety Investments | Active | Research in progress |
NCHRP 08-151 | Risk Management at State DOTs: Building Momentum and Sustaining the Practice | Completed | New SPO as of 9.14.23 |
NCHRP 08-152 | Strategies for Improving Diversity, Equity, and Inclusion in the Transportation Planning Profession | Active | Research in progress |
NCHRP 08-153 | A Guide for the Development and Use of Truck Traffic Forecasts in Design | Active | |
NCHRP 08-154 | Guidance for Agencies to Incorporate Uncertainty into Long-Range Transportation Planning | Active | |
NCHRP 08-155 | Handbook for Addressing Racial Disparities in the Project Delivery Process | Active | Research is progress. |
NCHRP 08-156 | Planning for Innovative and Emerging Mobility Futures at Intermodal Passenger Facilities | Anticipated | $200,000 to TCRP D-21 |
NCHRP 08-157 | Best Practices for Data Fusion of Probe and Point Detector Data | Completed | |
NCHRP 08-158 | A Compendium for Communicating the Value of Freight and Community Interactions | Pending | Contract pending at this time. |
NCHRP 08-159 | How to Assess and Address Equity of Access to Essential Goods and Services | Active | |
NCHRP 08-160 | Guide to Identify and Mitigate the Negative Effects of Gentrification Caused by Transportation Investment | Active | |
NCHRP 08-161 | Cultivating Accountability Through Meaningful Public Engagement | Active | |
NCHRP 08-162 | Guidance for Implementing Equitable Transportation Decision-Making | Active | |
NCHRP 08-163 | Defining Appropriate Design and Accommodation Thresholds for Active Transportation in a Context-Driven Approach | Active | |
NCHRP 08-164 | Institutional Integration of Active Transportation | Active | Research is progress. |
NCHRP 08-165 | Use of Active Transportation Data in Decision-Making | Active | |
NCHRP 08-166 | Racial and Socioeconomic Inequities in Active Transportation Safety | Pending | |
NCHRP 08-167 | Guide for Creating Effective Transportation Visualizations | Active | Research in progress. |
NCHRP 08-168 | Analysis and Assessment of the National Performance Management Data | Active | Research in progress |
NCHRP 08-169 | Valuing Diversity, Equity, and Inclusion in Transportation Asset Management | Active | |
NCHRP 08-170 | Closing the Loop: Post-Implementation Evaluation of Transportation Projects | Active | |
NCHRP 08-171 | Institutionalizing the Safe System Approach in Transportation Planning and Programming | Active | |
NCHRP 08-172 | Benefit Analysis of Private Health Sector Investments in Non-Emergency Medical Transportation | Active | Research is progress. |
NCHRP 08-173 | NCHRP 08-173: Impacts of E-Commerce on Travel and Land Use Patterns | Active | |
NCHRP 08-174 | Development of a Surveying and Mapping Guide for Transportation Projects | Active | |
NCHRP 08-175 | Understanding Travel Behavior Impacts of Transportation Systems Management and Operations Strategies | Active | |
NCHRP 08-176 | Balancing Freight and Goods Delivery Needs in Designing Complete Streets | Active | Research is progress. |
NCHRP 08-177 | Digitizing Bicycle and Pedestrian Treatments for Promoting Active Transportation Equity and Safety | Active | Research in Progress |
NCHRP 08-178 | Identifying and Evaluating Divided, Overburdened, and Underrepresented Communities | Active | |
NCHRP 08-179 | Strategies and Actions for Collaboration: A Guide for DOTs, MPOs, and Partners | Active | |
NCHRP 08-180 | Achieving Efficient Cultural Resources Management in Project Delivery | Active | |
NCHRP 08-181 | Impacts of Climate Change and Extreme Weather on the Mobility of Socially Vulnerable Populations | Active | |
NCHRP 08-182 | Playbook for Communicating Benefits of Transportation Systems Management and Operations Strategies Using System Performance Data | Pending | |
NCHRP 08-183 | Resource to Support Volunteer Driver Programs in Rural and Low-Density Areas | Active | |
NCHRP 08-184 | Induced Demand Assessment Framework: A Guide | Active | |
NCHRP 08-185 | Advancing TSMO Knowledge Management with Generative AI | RFP | |
NCHRP 08-186 | Best Practices for Distributed Rainfall-Runoff Models to Transform Hydrologic and Hydraulic Modeling for Resilient Transportation Planning and Design | Anticipated | In development |
NCHRP 08-187 | Primer for Using Generative AI Models in Transportation Planning | RFP | |
NCHRP 08-188 | Third-Party Origin-Destination Data Validation for Transportation Planning Applications | RFP | |
NCHRP 08-189 | Developing a Data Repository to Help with TSMO Strategies Evaluations | RFP | |
NCHRP 08-190 | National Evaluation of Truck Parking Demand and Rest Area Locations | Anticipated | In development |
NCHRP 08-191 | Safe Connections for Tribal and Rural Communities to the Intercity Bus Network | RFP | |
NCHRP 08-192 | Traffic Impacts of E-Commerce in Urbanized Areas: A Guide | Pending | |
NCHRP 08-193 | Implementation of Accessible Temporary and Alternate Pedestrian Access Routes in the Public Right-of-Way | RFP | |
NCHRP 08-194 | Active Transportation Messaging and Communications in Support of Active Transportation Investment, Including Investment in Safety Countermeasures | Anticipated | In development |
NCHRP 08-195 | Using Data to Enable Community-Centered Transportation | RFP | |
NCHRP 08-24A | Forecasting the Basic Inputs to Transportation Planning at the Zonal Level | Final | |
NCHRP 08-28 | Strategic Planning and Management for Transportation Agencies | Completed | |
NCHRP 08-29 | Travel Estimation Techniques for Urban Planning | Final | |
NCHRP 08-29(2) | Travel Estimation Techniques for Urban Planning | Final | |
NCHRP 08-30 | Characteristics and Changes in Freight Transportation Demand | Completed | |
NCHRP 08-30A | Freight Capacity for the Next Century | Completed | |
NCHRP 08-31A | Long-Term Availability of Multimodal Corridor Capacity | Completed | |
NCHRP 08-32 | Workshop on Multimodal Transportation Planning Research Needs | Completed | |
NCHRP 08-32(1) | Innovative Practices for Multimodal Transportation Planning for Freight and Passengers | Completed | |
NCHRP 08-32(2) | Multimodal Transportation: Development of a Performance-Based Planning Process | Completed | |
NCHRP 08-32(2)A | Multimodal Transportation: Development of a Performance-Based Planning Process | Completed | |
NCHRP 08-32(3) | Integration of Land-Use Planning with Multimodal Transportation Planning | Completed | |
NCHRP 08-32(4) | Developing and Maintaining Partnerships for Multimodal Transportation Planning | Completed | |
NCHRP 08-32(5) | Multimodal Transportation Planning Data | Completed | |
NCHRP 08-33 | Quantifying Air-Quality and Other Benefits and Costs of Transportation Control Measures | Completed | |
NCHRP 08-34 | Major Investment Studies: Development of a Practitioner's Guidebook for Effective Study Design, Management, and Implementation | Completed | |
NCHRP 08-35 | Incorporating ITS into the Transportation Planning Process | Final | |
NCHRP 08-36 | Research for the AASHTO Standing Committee on Planning | Final | Completed. See individual Tasks for project details. |
NCHRP 08-36/Task 001 | Parking Modeling Procedures | Completed | Completed---Final report sent to AASHTO |
NCHRP 08-36/Task 002 | Incorporating System Operations and Management Practices in Transportation Planning | Final | Completed---Final report sent to AASHTO |
NCHRP 08-36/Task 003 | Management of Institutional Changes in State Transportation Planning Processes and Programs | Completed | Completed---Final report sent to AASHTO |
NCHRP 08-36/Task 004 | The Use of Expert Panels in Analyzing Transportation and Land Use Alternatives | Final | Completed---Final report sent to AASHTO |
NCHRP 08-36/Task 005 | Incorporating Market Research Techniques into the Transportation Planning Process | Completed | Completed---Final report sent to AASHTO |
NCHRP 08-36/Task 006 | Product Delivery of New and Improved Travel Forecasting Procedures | Completed | Completed---Final report sent to AASHTO |
NCHRP 08-36/Task 007 | Development of a Multimodal Tradeoffs Methodology for Use in Statewide Transportation Planning | Final | See NCHRP 08-36/Task 7(02) for the Phase II Report |
NCHRP 08-36/Task 007(02) | Development of a Multimodal Tradeoffs Methodology for Use in Statewide Transportation Planning | Final | Please see NCHRP 08-36/Task 7 for the Phase I Report |
NCHRP 08-36/Task 008 | Workshop on Transportation Performance Measures | Completed | Completed---Published as TRB Conference Proceedings 26 |
NCHRP 08-36/Task 009 | Defining and Identifying Probable Non-Attainment Areas for PM2.5 | Completed | Completed---Final report sent to AASHTO; see Project 25-17 |
NCHRP 08-36/Task 010 | Global Climate Change and Transportation: Coming to Terms | Completed | Completed---Final report published by Eno Foundation and sent to AASHTO |
NCHRP 08-36/Task 011 | Technical Methods to Support Analysis of Environmental-Justice Issues | Final | Completed---Final report sent to AASHTO |
NCHRP 08-36/Task 013 | National Conference on Transportation and Economic Development | Completed | Completed---Published as TRB Circular E-C050 |
NCHRP 08-36/Task 014 | Consultation Between State DOTs and Local Elected Officials in Non-Metropolitan Areas | Completed | Completed---Final report sent to AASHTO |
NCHRP 08-36/Task 015 | Conference on Transportation and the Environment for the 21st Century | Completed | Completed---Published as TRB Circular E-C028 |
NCHRP 08-36/Task 016 | Assessment of Proposed Planning and National Environmental Policy Act Regulations | Completed | Completed---Final report sent to AASHTO |
NCHRP 08-36/Task 017 | Two-Way Education Process with a New CEO on Transportation Planning | Completed | Task cancelled |
NCHRP 08-36/Task 018 | Incorporating Safety into the Transportation Planning Process | Final | Completed---Final report sent to AASHTO |
NCHRP 08-36/Task 019 | Transportation Environmental Research Needs Conference | Completed | Completed---Published as TRB Conference Proceedings 28 |
NCHRP 08-36/Task 020 | Conformity Problems Caused by the Mismatch in SIP / Transportation Plan Timeframe | Completed | Completed---Final report sent to AASHTO; $25K from Project 20-7/Task 141 |
NCHRP 08-36/Task 021 | Expediting the Transportation Planning Process to Meet Fast Paced Customer Requirements | Final | Completed---Final report sent to AASHTO |
NCHRP 08-36/Task 022 | Demonstrating the Positive Impacts of Transportation Investments on Economic, Social, Environmental, Community, and Quality of Life Issues | Completed | Completed---Final report sent to AASHTO |
NCHRP 08-36/Task 023 | Review of the Potential Feasibility of Using Alternative Revenue Sources to Fund Future State Transportation Needs | Completed | Completed---Final report sent to AASHTO |
NCHRP 08-36/Task 024 | Investment Requirements Scenarios Development | Completed | Completed---Final report sent to AASHTO |
NCHRP 08-36/Task 025 | Improved Geographic Clarity in Reporting of Road System Extent | Completed | Completed---Final report sent to AASHTO |
NCHRP 08-36/Task 026 | Surface Transportation Safety and Investment | Completed | Completed---Final report sent to AASHTO |
NCHRP 08-36/Task 027 | Interstate Interchange Review | Completed | Completed---Final report sent to AASHTO |
NCHRP 08-36/Task 028 | Rural Conformity: A Survey of Practice | Completed | Completed---Final report sent to AASHTO |
NCHRP 08-36/Task 029 | Development of a Multimodal Tradeoffs Methodology for Use in Statewide Transportation Planning: Application of the Framework | Completed | Contracted as 08-36/Task 07(02); continuation of Project 08-36/Task 07 |
NCHRP 08-36/Task 030 | Workshop on Issues in Intermodal Connectors | Completed | Completed---Final report sent to AASHTO |
NCHRP 08-36/Task 031 | Elderly Issues in the Transportation Planning Process | Completed | Completed---Final report sent to AASHTO |
NCHRP 08-36/Task 032 | Tools, Techniques, and Methods in Rural Transportation Planning | Completed | Completed---Final report sent to AASHTO |
NCHRP 08-36/Task 033 | Best Practices in Statewide Freight Planning | Completed | Completed---Final report sent to AASHTO |
NCHRP 08-36/Task 034 | Incorporating Security into the Transportation Planning Process | Completed | Completed---Published as NCHRP Report 525, Volume 3 |
NCHRP 08-36/Task 035 | Evaluating State DOT's Planning Practices in Rural Planning | Completed | Completed---Final report sent to AASHTO |
NCHRP 08-36/Task 036 | Continuation of NCHRP 8-36(6) TMIP Support | Completed | Completed. For contract purposes, this has been amended into the work plan of NCHRP Project 8-36, Task 6. |
NCHRP 08-36/Task 037 | A Retrospective on the Conditions and Performance Report | Completed | Completed---Final report sent to AASHTO |
NCHRP 08-36/Task 038 | Supplemental Evaluation in Support of NCHRP 25-17 | Completed | Completed---Results incorporated into NCHRP 25-17 final report |
NCHRP 08-36/Task 039 | Forecasting Travel Time, Delay, and Reliability | Completed | Completed: For contract purposes, this task has been amended into NCHRP Project 7-15 and will be reported there. |
NCHRP 08-36/Task 040 | National Site Visits on Transportation and Growth | Completed | Completed---Final report sent to AASHTO |
NCHRP 08-36/Task 041 | Non-Response to Personal Travel Surveys (support for NCHRP 8-37) | Completed | Completed---Results incorporated into NCHRP 08-37 final report |
NCHRP 08-36/Task 042 | MPO Redefinition and Evolving Roles | Completed | Completed--Final report sent to AASHTO |
NCHRP 08-36/Task 043 | Return on Investment on Freight Rail Capacity Improvement | Completed | Completed---Final report sent to AASHTO |
NCHRP 08-36/Task 044 | Multi-State MPOs: Approaches, Cases, and Institutional Arrangements | Final | Completed--Final: Report sent to AASHTO |
NCHRP 08-36/Task 045 | Multi-State Corridor Planning | Completed | Completed---Final report sent to AASHTO |
NCHRP 08-36/Task 046 | Synthesis of Where Data Groups are Organizationally Located in State DOTs | Completed | Completed---Final report sent to AASHTO |
NCHRP 08-36/Task 047 | Effective Organization of Performance Measurement | Completed | Completed---Final report sent to AASHTO |
NCHRP 08-36/Task 048 | Guidance for Better Linking Systems Planning and the NEPA Process | Completed | Completed---Final report sent to AASHTO |
NCHRP 08-36/Task 049 | Synthesis of Metropilitan-Level Transportation Funding Sources | Completed | Completed---Final report sent to AASHTO |
NCHRP 08-36/Task 050 | What is the Impact of an Aging Population on System Planning and Investment Policies? | Completed | Completed---Final report has been received |
NCHRP 08-36/Task 051 | Information Design for Effective Decision Making and Communication | Completed | Completed---Final report sent to AASHTO |
NCHRP 08-36/Task 052 | Changes in Travel Behavior/Demand Due to Managed Lanes (HOV, HOT) Facility System Expansion | Final | Completed--Final report sent to AASHTO |
NCHRP 08-36/Task 053 | Peer Review Capacity Building Partnership: Best Practices in Non-Traditional Performance Measures, Multimodal Goods Movement Tradeoffs, Safety, Reliability, and State Funding | Completed | Completed---Final reports sent to AASHTO |
NCHRP 08-36/Task 054 | Census Data For Transportation Planning | Completed | Completed---Papers posted to TRB Conference website and will be published in Conference Proceedings 12/30/2006 |
NCHRP 08-36/Task 055 | The Role of Collaboration in Freight Transportation Management | Completed | Completed---Final report sent to AASHTO |
NCHRP 08-36/Task 056 | Highway Construction Project Coordination to Minimize Traffic Impacts | Final | Completed---Final report sent to AASHTO |
NCHRP 08-36/Task 057 | Institutional Needs in Safety Planning | Final | Completed |
NCHRP 08-36/Task 058 | Best Practices for State and MPO NHS and STP Programming | Final | |
NCHRP 08-36/Task 059 | Transportation and Health | Final | Completed |
NCHRP 08-36/Task 060 | State DOT Consideration of Infrastructure Development Potential Planning | Completed | Completed |
NCHRP 08-36/Task 061 | Monetary Valuation Per Dollar of Investment in Different Performance Measures | Completed | Completed |
NCHRP 08-36/Task 062 | Best Practice Methodology for Calculating Return on Investment (ROI) for Transportation Programs and Projects | Completed | Completed - Final Report sent to AASHTO |
NCHRP 08-36/Task 063 | Making NAICS (North American Industrial Classification System) Work for Transportation | Completed | Completed |
NCHRP 08-36/Task 064 | Right of Way Methods and Tools to Control Project Cost Escalation | Completed | Completed--project canceled and funds combined with NCHRP Project 08-49, Procedures for Cost Estimation and Management for Highway Projects During Planning, Programming, and Reconstruction |
NCHRP 08-36/Task 065 | Best Practices for Incorporating Commodity Flow Survey and Related Data into the MPO and Statewide Planning Processes | Final | Final Report sent to AASHTO |
NCHRP 08-36/Task 066 | Improved Methods for Assessing Social, Cultural, and economic Effects of Transportation Projects | Final | Completed--Final report sent to AASHTO |
NCHRP 08-36/Task 067 | Best Practices in Using Programmatic Investment Strategies in Statewide Transportation Plans | Final | Completed--Final report sent to AASHTO |
NCHRP 08-36/Task 068 | Implications of New 8-Hour Control Strategy Development on Transportation Programs, Policies, and Projects | Completed | Completed |
NCHRP 08-36/Task 069 | Peer Review Sessions to be amended into NCHRP 8-36(53) | Final | Completed; Reports sent to AASHTO |
NCHRP 08-36/Task 070 | Scoping Study for Statewide Travel Forecasting National Model | Final | |
NCHRP 08-36/Task 071 | Disclosure Avoidance Techniques to Improve ACS Data Availability | Final | The project has been completed and the final report submitted to AASHTO |
NCHRP 08-36/Task 072 | Implementing Project Cost Estimation and Management Process Improvements | Completed | Completed--Final report sent to AASHTO |
NCHRP 08-36/Task 073 | Adding Resilience to the Freight System in Statewide and Metropolitan Transportation Plans: Developing a Conceptual Approach | Completed | Completed - Final Report sent to AASHTO |
NCHRP 08-36/Task 074 | Customer Research Practices and Applications in Transportation | Completed | Completed--Final report sent to AASHTO |
NCHRP 08-36/Task 075 | Research Finders | Completed | Completed--Final report sent to AASHTO |
NCHRP 08-36/Task 076 | Conference on Best Practices in Meeting SAFETEA-LU Requirements in the Statewide Transportation Planning Process | Final | Completed. |
NCHRP 08-36/Task 078 | Small Community Research and Peer Exchange | Final | Completed |
NCHRP 08-36/Task 079 | Scoping Study for a Freight Data Exchange Network | Final | The project has been completed and the final report submitted to AASHTO |
NCHRP 08-36/Task 080 | Synthesis of State Practices in Developing Linear Referencing Systems | Final | The project has been completed and the final report submitted to AASHTO |
NCHRP 08-36/Task 081 | Enhancing the American Community Survey Data as a Source for Home-to-Work Flows | Final | |
NCHRP 08-36/Task 083 | Transportation Planning Partnerships to Enhance National Parks and Gateway Communities | Final | |
NCHRP 08-36/Task 084 | Asset Management of Environmental Mitigation Features | Final | Funding was provided to NCHRP 25-25, Task 51 |
NCHRP 08-36/Task 085 | Congestion Pricing and Investment Requirements | Final | This project is complete and the final report has been sent to AASHTO. |
NCHRP 08-36/Task 086 | Corridor Approaches to Integrating Land Transportation and Land Use | Completed | |
NCHRP 08-36/Task 087 | SCOP Strategic Planning | Final | |
NCHRP 08-36/Task 088 | Transportation Research Programs to Address Energy and Climate Change | Final | Completed-- See TRB Special Report 299 |
NCHRP 08-36/Task 089 | Evaluating and Communicating Model Results: Guidebook for Planners | Final | Final Report sent to AASHTO |
NCHRP 08-36/Task 090 | Best Practices in the Use of Microsimulation Models | Final | Completed. Final Report submitted to AASHTO SCOP |
NCHRP 08-36/Task 091 | Validation and Sensitivity Considerations for Statewide Models | Final | Final Report submitted to AASHTO SCOP |
NCHRP 08-36/Task 092 | Counting Motorcycles | Final | Final Report sent to AASHTO |
NCHRP 08-36/Task 093 | Road Pricing Communication Practices | Final | Complete. Final report sent to AASHTO. |
NCHRP 08-36/Task 094 | Integrated State and Local Government Policy Approaches to Transportation and Climate Change | Final | Completed - Final Report sent to AASHTO |
NCHRP 08-36/Task 095 | Virtual Conference on Transportation Planning Research Needs | Final | |
NCHRP 08-36/Task 096 | Selecting and Using Advanced Travel Demand Modeling Tools - A Peer Exchange | Final | Final Report sent to AASHTO. |
NCHRP 08-36/Task 097A | Towards Quantitative Safety Planning: Implementation of PLANSAFE | Final | Completed - Final Report sent to AASHTO |
NCHRP 08-36/Task 097B | Towards Quantitative Safety Planning: Implementation Support | Final | Completed. Results incorporated into NCHRP 08-36, Task 97A Final Report. |
NCHRP 08-36/Task 098 | Improving Home-to-Work and Employment Data for Transportation Planning | Final | Final Report sent to AASHTO SCOP |
NCHRP 08-36/Task 099 | How We Travel: A Sustainable National Program for Travel Data | Final | Published as TRB Special Report 304 |
NCHRP 08-36/Task 100 | Transportation Data Program Self Assessment Guide | Final | Completed. Final Report submitted to AASHTO SCOP |
NCHRP 08-36/Task 101 | Understanding How to Develop and Apply Economic Analyses: Guidance for Transportation Planners | Final | Completed-- Final Report sent to AASHTO. |
NCHRP 08-36/Task 102 | Assessing Alternative Methods for Measuring Regional Mobility | Final | Completed--Final Report sent to AASHTO |
NCHRP 08-36/Task 103 | Mining American Recovery and Reinvestment Act Jobs Data for Opportunities to Improve Economic Impact and Performance Analysis of Transportation Investments | Final | Completed--Final Report sent to AASHTO. |
NCHRP 08-36/Task 104 | Integrating Performance Measures into a Performance-Based Planning and Programming (PBPP) Process | Final | |
NCHRP 08-36/Task 105 | Strategic Plan for the AASHTO Standing Committee on Planning: 2011 Update | Final | Completed--Final Report sent to AASHTO. |
NCHRP 08-36/Task 106 | Synthesis of Practices for Prioritizing Enhancement and Nonmotorized Transportation Projects | Final | |
NCHRP 08-36/Task 107 | Synthesis of State DOT and MPO Planning and Analyses on Strategies to Reduce Greenhouse Gas Emissions | Final | Complete. FInal Report sent to AASHTO. |
NCHRP 08-36/Task 108 | Improving Travel Behavior Data for Alternative Fuel Vehicles: A Scoping Study | Final | Completed -- Final Report Sent to AASHTO |
NCHRP 08-36/Task 109 | Non-Rail Infrastructure Upgrade and/or New Construction Due to Passenger Rail Implementation | Final | Completed. Final report sent to AASHTO. |
NCHRP 08-36/Task 111 | U.S. Commuting and Travel Patterns: Data Development and Analysis | Final | |
NCHRP 08-36/Task 112 | Cross Mode Project Prioritization -- An Assessment of Current Practice | Final | |
NCHRP 08-36/Task 113 | The Future of Transportation Planning in State DOTs | Final | |
NCHRP 08-36/Task 114 | Transportation Asset Management for Ancillary Structures | Final | |
NCHRP 08-36/Task 115 | Application of Fair Division, Data Envelopment Analysis, and Conjoint Analysis Techniques to Funding Decisions at the Program and Project/Activity Level | Final | Completed--Final Report sent to AASHTO |
NCHRP 08-36/Task 116 | Development of Transportation Asset Management Plan Templates | Completed | |
NCHRP 08-36/Task 117 | Sketch Planning Tools for Regional Sustainability | Final | |
NCHRP 08-36/Task 118 | Performance Measures for State Infrastructure Preservation | Final | |
NCHRP 08-36/Task 119 | Transportation Users Guide to the Economic Census | Final | |
NCHRP 08-36/Task 120 | Snapshots of Planning Practices | Completed | |
NCHRP 08-36/Task 121 | Successful Implementation of Enterprise Risk Management in State Transportation Agencies | Completed | |
NCHRP 08-36/Task 125 | Transportation Asset Management Knowledge Portal | Completed | |
NCHRP 08-36/Task 126 | Development of a Risk Register Spreadsheet Tool | Completed | |
NCHRP 08-36/Task 127 | Employment Data for Planning: A Resource Guide | Completed | |
NCHRP 08-36/Task 128 | Data Visualization Methods for Transportation Agencies | Completed | |
NCHRP 08-36/Task 129 | Scoping Study to Establish Standards and Guidance for Data for Transportation Planning and Traffic Operations Purposes | Completed | |
NCHRP 08-36/Task 12A | Analysis of the Factors Affecting Future Transportation Environment and their Implications for State DOTs | Completed | Completed---Final report sent to AASHTO |
NCHRP 08-36/Task 12B | Analysis of the Factors Affecting Future Transportation Environment and their Implications for State DOTs | Completed | Completed---Final report sent to AASHTO |
NCHRP 08-36/Task 130 | Inventory and Assessment of Methods for Making Collected Transportation Data Anonymous | Completed | |
NCHRP 08-36/Task 131 | Transportation Data Integration to Develop Planning Performance Measures | Completed | |
NCHRP 08-36/Task 132 | Understanding Changes in Youth Mobility | Completed | |
NCHRP 08-36/Task 134 | Transportation Asset Management Research Roadmap | Completed | |
NCHRP 08-36/Task 135 | Addressing Margins of Error in Small Areas of Data Delivered through the American Fact Finder or the Census Transportation Planning Products Program | Completed | |
NCHRP 08-36/Task 136 | License Plate Reader Technology: Privacy Risk Analysis and Case Studies | Completed | |
NCHRP 08-36/Task 137 | Assessing the Utility and Costs of Statewide Travel Demand Models | Completed | |
NCHRP 08-36/Task 138 | Support and Update of the Strategic Plan for SCOP/Subcommittees on TAM | Completed | |
NCHRP 08-36/Task 139 | Planning Research Digest | Completed | |
NCHRP 08-36/Task 140 | Assessing Actual Transportation Impacts of the 2005 BRAC Decisions | Completed | |
NCHRP 08-36/Task 141 | Evaluation of Walk and Bicycle Demand Modeling Practice | Completed | |
NCHRP 08-36/Task 142 | Advancing Sustainability through Multi-Agency Collaborations | Completed | |
NCHRP 08-36/Task 145 | Scenario Planning Lite | Completed | |
NCHRP 08-36/Task 146 | Economic Resilience and Long-Term Highway/Transportation Infrastructure Investment | Completed | |
NCHRP 08-36/Task 147 | Strategic Mobility Research: Enhancing Mobility, Stimulating Economic Activity, Saving Lives | Completed | |
NCHRP 08-36C | Research for the AASHTO Standing Committee on Planning | Active | |
NCHRP 08-37 | Standardized Procedures for Personal Travel Surveys | Completed | |
NCHRP 08-38 | Consideration of Environmental Factors in Transportation Systems Planning | Completed | |
NCHRP 08-39 | Financing and Improving Land Access to U.S. Cargo Hubs | Completed | |
NCHRP 08-40 | Evaluating Cultural Resource Significance Using Information Technology (IT) | Completed | |
NCHRP 08-40(02) | Evaluating Cultural Resource Significance-Implementation Tools | Completed | |
NCHRP 08-41 | Effective Methods for Environmental Justice Assessment | Final | |
NCHRP 08-42 | Rail-Freight Solutions to Roadway Congestion | Final | |
NCHRP 08-43 | Methods for Forecasting Statewide Freight Movements and Related Performance Measures | Final | |
NCHRP 08-44 | Incorporating Safety into Long-Range Transportation Planning | Completed | |
NCHRP 08-44(02) | Transportation Safety Planning: Forecasting the Safety Impacts of Socio-Demographic Changes and Safety Investments | Completed | |
NCHRP 08-45 | A New Vision of Mobility: Guidance to Foster Collaborative Multimodal Decision Making | Completed | |
NCHRP 08-46 | A Guide for Including Access Management in Transportation Plans | Completed | |
NCHRP 08-47 | Guidebook for Freight Policy, Planning, and Programming in Small and Mid-Sized Metropolitan Areas | Final | Completed and published as NCHRP Report 570 |
NCHRP 08-48 | Using American Community Survey Data for Transportation Planning | Completed | |
NCHRP 08-49(02) | Right of Way Methods and Tools to Control Project Cost Escalation | Final | |
NCHRP 08-50 | Factors that Support the Planning-Programming Linkage | Final | Completed and published as NCHRP Report 591 |
NCHRP 08-51 | Enhancing Internal Trip Capture Estimation for Mixed-Use Developments | Completed | |
NCHRP 08-52 | Best Practices to Enhance the Transportation/Land-Use Connection in Rural America | Completed | |
NCHRP 08-53 | Integrating Freight into Transportation Planning and Project-Selection Processes | Final | Published as NCHRP Report 594 |
NCHRP 08-54 | Identification of Liability-Related Impediments to Sharing 409 Safety Data Among Transportation Agencies, and Synthesis of Best Practices | Final | |
NCHRP 08-55 | Integrating Geo-Spatial Technologies into the Right-of-Way Data-Management Process | Completed | |
NCHRP 08-55A | Developing a Logical Model for a Geo-Spatial Right-Of-Way Land Management System | Completed | The final report is available as NCHRP Report 695 and CD-ROM 99. |
NCHRP 08-56 | Truck Noise-Source Mapping | Completed | Published as NCHRP Report 635 |
NCHRP 08-57 | Assessing Highway Tolling and Pricing Options and Impacts: Vol. 1: Decision-Making Framework; Vol. 2: Travel Demand Forecasting Tools | Final | |
NCHRP 08-58 | Development of a Multimodal Statewide Corridor Planning Guidebook | Final | |
NCHRP 08-59 | Transportation Cost Implications of New Development | Completed | The revised final report has been received and posted on the NCHRP website |
NCHRP 08-60 | Guidebook on Risk Analysis Tools and Management Practices to Control Transportation Project Cost | Final | |
NCHRP 08-61 | Travel Demand Forecasting: Parameters and Techniques | Final | Published as NCHRP Report 716. |
NCHRP 08-62 | Transportation Performance Management: Insight from Practitioners | Final | |
NCHRP 08-63 | Review of Canadian Experience with Large Commercial Motor Vehicles | Completed | |
NCHRP 08-64 | A Guidebook on Improved Principles, Processes, and Methods for Shared-Use Passenger and Freight Rail Corridors | Completed | |
NCHRP 08-65 | Guidebook for Successful Communication, Cooperation, and Coordination Strategies Between Transportation Agencies and Tribal Communities | Completed | |
NCHRP 08-66 | Trip-Generation Rates for Transportation Impact Analyses of Infill Developments | Completed | |
NCHRP 08-67 | Measuring Transportation Network Performance | Final | |
NCHRP 08-68 | Citizen’s Guide and Discipline-Specific Professionals’ Guide for Context-Sensitive Solutions in Transportation | Final | |
NCHRP 08-69 | Supplement to the AASHTO Transportation Asset Management Guide: Volume 2 - A Focus on Implementation | Final | Final Report received and will be published by AASHTO |
NCHRP 08-70 | Target-Setting Methods and Data Management To Support Performance-Based Resource Allocation by Transportation Agencies | Final | |
NCHRP 08-71 | Methodology for Estimating Life Expectancies of Highway Assets | Final | |
NCHRP 08-72 | Practical Approaches for Involving Traditionally Underserved Populations in Transportation Decisionmaking | Final | |
NCHRP 08-73 | Road Pricing, Public Perceptions and Program Development | Final | Completed. Final report published as Report 686. |
NCHRP 08-74 | A Guidebook for Sustainability Performance Measurement for Transportation Agencies | Final | |
NCHRP 08-75 | Guidelines for Evaluation and Performance Measurement of Congestion Pricing Projects | Completed | The final report has been published as NCHRP Report 694. |
NCHRP 08-76 | Institutionalizing Safety in Transportation Planning Processes: Techniques, Tactics and Strategies | Final | |
NCHRP 08-77 | A Model for Identifying and Evaluating the Historic Significance of Post-World War II Housing | Final | |
NCHRP 08-78 | Estimating Bicycling and Walking for Planning and Project Development | Completed | Completed and published as NCHRP Report 770 |
NCHRP 08-79 | Producing Transportation Data Products from the American Community Survey that Comply with Disclosure Rules | Final | Completed, Final Report published as Web-Only Document 180 |
NCHRP 08-80 | Freight Trip Generation and Land Use (Jointly Funded as NCFRP 25) | Active | |
NCHRP 08-81 | Improving the Quality of Motorcycle Travel Data Collection | Completed | Completed - Published as NCHRP Report 760. |
NCHRP 08-82 | Deployment, Use, and Effect of Real-Time Traveler Information Systems | Final | Published as NCHRP Web-Only Document 192 |
NCHRP 08-83 | Analytical Travel Forecasting Approaches for Project-Level Planning and Design | Final | Completed. Final product is published as NCHRP Report 765 and CD-ROM 143 |
NCHRP 08-84 | Long-Distance and Rural Travel Transferable Parameters for Statewide Travel Forecasting Models | Final | Report published as NCHRP Report 735 |
NCHRP 08-85 | The Comprehensive Costs of Highway-Rail At-Grade Crossing Crashes | Final | |
NCHRP 08-86 | Capacity Modeling Guiodebook for Shared-Use Passenger and Freight Rail Operations | Final | |
NCHRP 08-87 | Successful Practices in GIS-Based Asset Management | Final | |
NCHRP 08-88 | Effective Project Scoping Practices to Improve On-Time and On-Budget Delivery of Highway Projects | Final | |
NCHRP 08-89 | Applying GPS Data to Understand Travel Behavior | Final | Published as NCHRP Report 775 |
NCHRP 08-90 | Transportation Asset Management Gap Analysis Tool | Completed | Draft final products deliered to AASHTO; they will publish. |
NCHRP 08-91 | Cross-Asset Resource Allocation and the Impact on System Performance | Final | |
NCHRP 08-92 | Implementing a Transportation Agency Data Self-Assessment | Final | |
NCHRP 08-93 | Managing Risk Across the Enterprise: A Guidebook for State Departments of Transportation | Final | |
NCHRP 08-94 | Guidelines for Selecting Travel Forecasting Methods and Techniques | Completed | |
NCHRP 08-95 | Cell Phone Location Data for Travel Behavior Analysis | Completed | |
NCHRP 08-96 | Integrating Goods and Services Movement by Commercial Vehicles in Smart Growth Environments | Final | Completed. Published as NCHRP Report 844. |
NCHRP 08-97 | Finding and Using Data to Identify and Evaluate Corridors for Transporting Multi-state, Multi-modal Oversize/Overweight Freight | Completed | |
NCHRP 08-98 | Guide for Identifying, Classifying, Evaluating, and Mitigating Truck Freight Bottlenecks | Final | Complete. Published as NCHRP Research Report 854. |
NCHRP 08-99 | Methodology for Estimating the Value of Travel Time Reliability for Truck Freight System Users | Final | Published as NCHRP Report 824. |
NCHRP 09-06(01) | Asphalt-Aggregate Mixture Analysis System (AAMAS) | Completed | |
NCHRP 09-07 | Field Procedures and Equipment to Implement SHRP Asphalt Specifications | Completed | |
NCHRP 09-08 | Designing Stone Matrix Asphalt Mixtures | Completed | |
NCHRP 09-09 | Refinement of the Superpave Gyratory Compaction Procedure | Completed | |
NCHRP 09-09(1) | Verification of Gyration Levels in the Ndesign Table | Completed | |
NCHRP 09-10 | Superpave Protocols for Modified Asphalt Binders | Completed | |
NCHRP 09-11 | Segregation in Hot-Mix Asphalt Pavements | Completed | |
NCHRP 09-12 | Incorporation of Reclaimed Asphalt Pavement in the Superpave System | Completed | |
NCHRP 09-13 | Evaluation of Water Sensitivity Tests | Completed | |
NCHRP 09-14 | Investigation of the Restricted Zone in the Superpave Aggregate Gradation Specification | Completed | |
NCHRP 09-15 | Quality Characteristics and Test Methods for Use in Performance-Related Specifications of Hot-Mix Asphalt Pavements | Completed | |
NCHRP 09-16 | Relationship Between Superpave Gyratory Compaction Properties and Permanent Deformation of Pavements in Service | Completed | |
NCHRP 09-17 | Accelerated Laboratory Rutting Tests: Asphalt Pavement Analyzer | Completed | |
NCHRP 09-18 | Field Shear Test for Hot Mix Asphalt | Completed | |
NCHRP 09-19 | Superpave Support and Performance Models Management | Completed | |
NCHRP 09-20 | Performance-Related Specifications for Hot-Mix Asphalt Construction | Completed | |
NCHRP 09-21 | Advisory Structure for Superpave Implementation and Related Research | Completed | |
NCHRP 09-22 | Beta Testing and Validation of HMA PRS | Completed | The project final report is available as NCHRP Report 704. |
NCHRP 09-22A | Evaluation of the Quality-Related Specification Software (QRSS) Version 1.0 | Completed | |
NCHRP 09-22B | Comparing HMA Dynamic Modulus Measured by Axial Compression and IDT Methods | Completed | |
NCHRP 09-23 | Environmental Effects in Pavement Mix and Structural Design Systems | Completed | |
NCHRP 09-23A | Implementing a National Catalog of Subgrade Soil-Water Characteristic Curve (SWCC) Default Inputs for Use with the MEPDG | Completed | |
NCHRP 09-23B | Integrating the National Database of Subgrade Soil-Water Characteristic Curves and Soil Index Properties With the MEPDG | Completed | |
NCHRP 09-25 | Requirements for Voids in Mineral Aggregate for Superpave Mixtures | Completed | |
NCHRP 09-26 | Precision Statements for AASHTO T312 and other Laboratory Test Methods | Completed | |
NCHRP 09-26A | Data Mining and Interlaboratory Studies to Prepare Precision Statements for AASHTO Standards | Completed | Work of this type for the AASHTO Highway Subcommittee on Materials is now conducted in NCHRP Project 10-87. |
NCHRP 09-27 | Relationships of HMA In-Place Air Voids, Lift Thickness, and Permeability | Completed | |
NCHRP 09-29 | Simple Performance Tester for Superpave Mix Design | Completed | |
NCHRP 09-30 | Experimental Plan for Calibration and Validation of HMA Performance Models for Mix and Structural Design | Completed | |
NCHRP 09-30A | Calibration of Rutting Models for HMA Structural and Mix Design | Completed | The project final report is available as NCHRP Report 719. |
NCHRP 09-31 | Air Void Requirements for Superpave Mix Design | Completed | |
NCHRP 09-33 | A Mix Design Manual for Hot Mix Asphalt | Completed | The mix design manual is available as NCHRP Reports 673 and 714. |
NCHRP 09-33A | Adapting SPT Specification Criteria to HMA Mix Design | Completed | The final report is available as NCHRP Web-Only Document 157. |
NCHRP 09-34 | Improved Conditioning Procedure for Predicting the Moisture Susceptibility of HMA Pavements | Completed | |
NCHRP 09-35 | Aggregate Properties and Their Relationship to the Performance of Superpave-Designed HMA: A Critical Review | Completed | |
NCHRP 09-36 | Improved Procedure for Laboratory Aging of Asphalt Binders in Pavements | Completed | The project final report is available as NCHRP Project 709. |
NCHRP 09-37 | Using Surface Energy Measurements To Select Materials for Asphalt Pavements | Completed | |
NCHRP 09-38 | Endurance Limit of Hot Mix Asphalt Mixtures to Prevent Fatigue Cracking in Flexible Pavements | Completed | The project final report is available as NCHRP Report 646. |
NCHRP 09-39 | Procedure for Determining Mixing and Compaction Temperatures of Asphalt Binders in Hot Mix Asphalt | Completed | The project final report is available as NCHRP Report 648. |
NCHRP 09-40 | Optimization of Tack Coat for HMA Placement | Completed | The project final report is available as NCHRP Report 712. |
NCHRP 09-41 | Performance and Maintenance of Permeable Friction Courses | Completed | |
NCHRP 09-42 | History of Superpave: Documenting the Research Program and Implementation Process | Completed | The project final report is available as NCHRP Web-Only Document 186. |
NCHRP 09-43 | Mix Design Practices for Warm Mix Asphalt | Completed | The project final report is available as NCHRP Reports 691 and 714. |
NCHRP 09-44 | Developing a Plan for Validating an Endurance Limit for HMA Pavements | Completed | |
NCHRP 09-44A | Validating an Endurance Limit for HMA Pavements: Laboratory Experiment and Algorithm Development | Completed | The project final report is available as NCHRP Report 762. |
NCHRP 09-45 | Test Methods and Specification Criteria for Mineral Filler Used in HMA | Completed | A summary of the project final report is available as NCHRP Research Results Digest 357. |
NCHRP 09-46 | Improved Mix Design, Evaluation, and Materials Management Practices for Hot Mix Asphalt with High Reclaimed Asphalt Pavement Content | Completed | The project final report is available as NCHRP Report 752. |
NCHRP 09-47 | Engineering Properties, Emissions, and Field Performance of Warm Mix Asphalt Technologies | Completed | Phase II of this project will be accomplished as NCHRP Project 9-47A. |
NCHRP 09-47A | Properties and Performance of Warm Mix Asphalt Technologies | Completed | |
NCHRP 09-48 | Field versus Laboratory Volumetrics and Mechanical Properties | Completed | |
NCHRP 09-49 | Performance of WMA Technologies: Stage I--Moisture Susceptibility | Completed | The project final reports are available as NCHRP Reports 763 and 817. |
NCHRP 09-49A | Performance of WMA Technologies: Stage II--Long-Term Field Performance | Completed | |
NCHRP 09-50 | Performance-Related Specifications for Asphaltic Binders Used in Preservation Surface Treatments | Completed | |
NCHRP 09-51 | Material Properties of Cold In-Place Recycled and Full-Depth Reclamation Asphalt Concrete for Pavement Design | Completed | |
NCHRP 09-52 | Short-Term Laboratory Conditioning of Asphalt Mixtures | Completed | |
NCHRP 09-53 | Properties of Foamed Asphalt for Warm Mix Asphalt Applications | Completed | |
NCHRP 09-54 | Long-Term Aging of Asphalt Mixtures for Performance Testing and Prediction | Completed | |
NCHRP 09-55 | Recycled Asphalt Shingles in Asphalt Mixtures with Warm Mix Asphalt Technologies | Completed | |
NCHRP 09-56 | Identifying Influences on and Minimizing the Variability of Ignition Furnace Correction Factors | Completed | |
NCHRP 09-56A | Identifying Influences on and Minimizing the Variability of Ignition Furnace Correction Factors | Completed | Available as a Pre-Publication NCHRP Research Report 1060. |
NCHRP 09-57 | Experimental Design for Field Validation of Laboratory Tests to Assess Cracking Resistance of Asphalt Mixtures | Completed | |
NCHRP 09-57A | Ruggedness of Laboratory Tests to Assess Cracking Resistance of Asphalt Mixtures | Final | |
NCHRP 09-57B | Field Validation of Laboratory Cracking Tests of Asphalt Mixtures | Active | Research in progress |
NCHRP 09-58 | The Effects of Recycling Agents on Asphalt Mixtures with High RAS and RAP Binder Ratios | Completed | |
NCHRP 09-59 | Relating Asphalt Binder Fatigue Properties to Asphalt Mixture Fatigue Performance | Final | Published as NCHRP Research Report 982 |
NCHRP 09-60 | Addressing Impacts of Changes in Asphalt Binder Formulation and Manufacture on Pavement Performance through Changes in Asphalt Binder Specifications | Active | Research in progress |
NCHRP 09-61 | Short- and Long-Term Binder Aging Methods to Accurately Reflect Aging in Asphalt Mixtures | Completed | |
NCHRP 09-62 | Rapid Tests and Specifications for Construction of Asphalt-Treated Cold Recycled Pavements | Final | Available as WOD 376 |
NCHRP 09-63 | A Calibrated and Validated National Performance-Related Specification for Emulsified Asphalt Binder | Active | Research in progress |
NCHRP 09-64 | Developing Laboratory Methods and Specifications to Test Tack Coat Materials | Final | Report available as Web-Only Document. |
NCHRP 09-65 | Capturing Durability of High Recycled Binder Ratio (RBR) Asphalt Mixtures | Completed | Publication decision pending. |
NCHRP 09-66 | Performance Properties of Laboratory Produced Recycled Plastic Modified (RPM) Asphalt Binders and Mixtures | Completed | Publication decision pending. |
NCHRP 09-67 | New Materials & Technology Deployment in Asphalt Pavement Structural Design | Anticipated | |
NCHRP 09-68 | Recycled Asphalt Materials: Binder Availability and Its Impact on Mix Performance | Active | Research in progress |
NCHRP 09-69 | Verifying Quantities of Materials Used in Asphalt Mixtures at Production Facilities | Active | |
NCHRP 09-70 | Guidelines for Incorporating Aging Effects on Balanced Mix Design for Quality Assurance | Pending | |
NCHRP 09-71 | Framework for Design, Production, and Placement of Balanced Asphalt Mixtures | Pending | |
NCHRP 09-72 | Sensitivity Evaluation of Balanced Mix Design Performance Tests | Pending | |
NCHRP 09-73 | Guidelines for Storage of Asphalt Mixture and Performance Test Specimens | RFP | |
NCHRP 10-100 | Procedures and Guidelines for Validating Contractor Test Data | Final | |
NCHRP 10-101 | Improving Mid-Term, Intermediate, and Long-Range Cost Forecasting: Guidance for State Departments of Transportation | Final | |
NCHRP 10-102 | A Guidebook for Risk-Based Construction Inspection | Final | The final deliverables have been published as NCHRP Research Report 1039 and NCHRP Web-Only Document 344 |
NCHRP 10-103 | Improving Guidance of AASHTO R 80/ASTM C 1778 for Alkali-Silica Reactivity (ASR) Potential and Mitigation | Final | |
NCHRP 10-104 | Recommendations for Revision of AASHTO M 295 Standard Specification to Include Marginal and Unconventional Source Coal Fly Ashes | Final | |
NCHRP 10-105 | Verification of Traffic Speed Deflection Devices’ (TSDDs) Measurements | Completed | |
NCHRP 10-106 | Update of AASHTO Standard Practice for Certification of Inertial Profiling Systems (R 56) | Completed | |
NCHRP 10-107 | Guide for Implementing Performance Specifications | Completed | Expired. |
NCHRP 10-108 | Manual for Incorporating Nondestructive Testing (NDT) in Quality Assurance of Highway Pavement Construction | Final | |
NCHRP 10-109 | Modern Solutions to Safe and Efficient Work Zone Travel | Completed | Research is complete. Publication decision is pending. |
NCHRP 10-110 | 3D Modeling Guide for Construction Inspection | Final | Continued under NCHRP 10-110A. |
NCHRP 10-110A | Guide to Using 3D Models for Construction Inspection | Active | Research is progress. |
NCHRP 10-111 | Guide for 3D Model Viewers for Construction Inspection | Active | Research in progress. |
NCHRP 10-112 | Guide for Remote Virtual Inspection for Highway Construction Infrastructure Projects | Active | Research in progress. |
NCHRP 10-113 | Quality Management for 3D Model-Based Project Development and Delivery | Active | Research In Progress |
NCHRP 10-114 | Developing Performance and Safety Specifications for Rejuvenating Seals | Active | Research in progress. |
NCHRP 10-115 | Guide on Progressive Design-Build for Transportation Projects | Active | Research in progress. |
NCHRP 10-116 | Quantifying Variability in Quality Characteristics of Pavements | Active | |
NCHRP 10-117 | Design and Repair of Glass Fiber Reinforced Polymer Concrete Bridge Barriers | Active | |
NCHRP 10-118 | Effective Timelines and Contractual Strategies for Accelerated Bridge Construction Projects | Active | Research In Progress |
NCHRP 10-119 | Guidance for Implementing Utility Investigations in Alignment with Project Delivery | Active | |
NCHRP 10-120 | Guide for Incorporating Right-of-Way and Utilities into Value Engineering Studies | Active | Research in progress. |
NCHRP 10-121 | Guidelines for the Application of Ground Modification Methods for Highway Structures | Active | Research In Progress |
NCHRP 10-122 | Cost Estimating Practices for Highway Projects | Active | Research in progress. |
NCHRP 10-123 | Incorporating Quality Assurance into Green Public Procurement Practices | Active | |
NCHRP 10-124 | Development of a Field Test to Determine Chip Seal Aggregate Embedment | Active | Research in progress. |
NCHRP 10-125 | Update Bridge Construction Requirements | Active | Research In Progress |
NCHRP 10-126 | Field-Cured Products and Water Quality: A Guide for Screening and Risk Mitigation | Active | |
NCHRP 10-127 | Impact of Bolt Holes on the Performance of Steel Girders | Active | Research In Progress |
NCHRP 10-128 | Multiple-Sensor Weigh-In-Motion Systems to Enhance Data Accuracy and Reliability | Active | Research is progress. |
NCHRP 10-129 | Field Studies of Steel Girder Fit-Up | Active | Research In Progress |
NCHRP 10-13 | Ultrasonic Measurement of Weld Flaw Size | Completed | |
NCHRP 10-130 | Guide for Using Alternative Contracting Methods for Small Highway Projects | Active | |
NCHRP 10-131 | Laboratory Test Method for Estimating the Contribution of Geosynthetics to Pavement Performance | Pending | |
NCHRP 10-132 | Understanding the Interaction Between Total Scour Components | Active | Research In Progress |
NCHRP 10-133 | Research Plan for Assessing Friction of Pavement Markings | Active | Research In Progress |
NCHRP 10-134 | Guidelines for the Selection of Performance-Related Tests for the Acceptance of Preservation Treatments | Pending | |
NCHRP 10-135 | Guide for Subsurface Utility Engineering and Digital As-Built Data Management | Pending | Contract pending at this time. |
NCHRP 10-136 | Right-of-Way and Utility Risk Identification and Management | Pending | Contract pending at this time. |
NCHRP 10-137 | Movable Bridge Construction Requirements | Active | Research In Progress |
NCHRP 10-138 | Guide for Early Right-of-Way Engineering Involvement | Pending | Contract pending at this time. |
NCHRP 10-139 | Enhancing Pavement Management Guidance | Active | Research In Progress |
NCHRP 10-140 | Guide for Right-of-Way Management with a Utility Awareness | Pending | Contract pending at this time. |
NCHRP 10-141 | Guide for Digital Project Delivery: Integrating Design and Construction | RFP | |
NCHRP 10-142 | Guide for Integrating Digital Construction Inspection Technologies | RFP | |
NCHRP 10-143 | Field Verification Processes for Utility Installation and Relocation: A Guide | RFP | |
NCHRP 10-144 | Rightsizing Pay Factors to Incentivize Quality Highway Construction | Anticipated | In development |
NCHRP 10-145 | Asphalt Emulsion-Based High Friction Surface Treatments | RFP | |
NCHRP 10-146 | Quality Assurance Procedures for Traffic Speed Deflection Devices | RFP | |
NCHRP 10-17 | Use of Antistripping Additives in Asphaltic Concrete Mixtures | Completed | |
NCHRP 10-20 | Elastomeric Bearings Design, Construction, and Materials | Completed | |
NCHRP 10-20A | High-Load, Multi-Rotational Bridge Bearings: Design, Materials, and Construction | Completed | |
NCHRP 10-22 | The Performance of Weathering Steel in Bridges | Completed | |
NCHRP 10-25A | Instantaneous Determination of Water-Cement Ratio in Fresh Concrete | Completed | |
NCHRP 10-26 | Performance-Related Specifications for Hot-Mix Asphaltic Concrete | Completed | |
NCHRP 10-27 | Determination of Asphaltic Concrete Pavement Structural Properties by Nondestructive Testing | Completed | |
NCHRP 10-29 | Anchorage Zone Reinforcement for Post-Tensioned Concrete Girders | Completed | |
NCHRP 10-30(3) | Nondestructive Methods for Field Inspection of Embedded or Encased High Strength Steel Rods and Cables | Completed | |
NCHRP 10-31 | Acceptance Criteria for Steel Bridge Welds | Completed | |
NCHRP 10-32A | Durability Testing of High-Strength Concrete Containing High-Range Water-Reducing Admixtures | Completed | |
NCHRP 10-33 | Potential Benefits of Geosynthetics in Flexible Pavement Systems | Completed | |
NCHRP 10-34 | Transient Protection, Grounding, and Shielding of Electronic Traffic Control Equipment | Final | |
NCHRP 10-35 | Fatigue Behavior of Welded and Mechanical Splices in Reinforcing Steel | Completed | |
NCHRP 10-36 | Evaluation of Weldments Incorporating Backing Materials | Completed | |
NCHRP 10-37 | Performance of Epoxy-Coated Reinforcing Steel in Highway Bridges | Completed | |
NCHRP 10-37A | Performance of Epoxy-Coated Reinforcing Steel--Laboratory Testing | Completed | |
NCHRP 10-37B | A Protocol for the Evaluation of Existing Bridges Containing Epoxy-Coated Reinforcing Steel | Completed | |
NCHRP 10-37C | Repair and Rehabilitation of Bridge Components Containing Epoxy-Coated Reinforcement | Completed | |
NCHRP 10-38 | Fatigue-Resistant Design of Cantilevered Signal, Sign, and Light Supports | Completed | |
NCHRP 10-38(2) | Fatigue-Resistant Design of Cantilevered Signal, Sign, and Light Supports | Completed | |
NCHRP 10-39 | Construction Testing and Inspection Levels | Completed | |
NCHRP 10-39A | Testing and Inspection Levels for Hot-Mix Asphaltic Concrete Overlays | Completed | |
NCHRP 10-40 | Plasma Arc Cutting of Bridge Steels | Completed | |
NCHRP 10-41 | Evaluation of Unbonded Portland Cement Concrete Overlays | Completed | |
NCHRP 10-42 | Constructibility Review Process for Transportation Facilities | Completed | |
NCHRP 10-43 | Movable Bridge Inspection, Evaluation, and Maintenance | Completed | |
NCHRP 10-44 | Nondestructive Testing to Determine Insitu Material Properties of Pavement Layers | Completed | |
NCHRP 10-44A | Determination of Insitu Material Properties of Asphalt Concrete Pavement Layers | Completed | |
NCHRP 10-45 | Procedures for Evaluating Corrosion-Inhibiting Admixtures for Structural Concrete | Completed | |
NCHRP 10-46 | Corrosion of Steel Piling in Nonmarine Applications | Completed | |
NCHRP 10-47 | Guidelines for Longitudinal Pavement Profile Measurement | Completed | |
NCHRP 10-48 | Assessing Pavement Layer Condition Using Deflection Data | Completed | |
NCHRP 10-49 | Improved Contracting Methods for Highway Construction Projects | Completed | |
NCHRP 10-50 | Strategies for Rehabilitating Rigid Pavements Subjected to High-Traffic Volumes | Completed | |
NCHRP 10-50A | Guidelines for Selecting Strategies for Rehabilitating Rigid Pavements Subjected to High-Traffic Volumes | Completed | |
NCHRP 10-51 | Performance-Related Specifications for Elastomeric Bridge Bearings | Completed | |
NCHRP 10-52 | Performance Tests for Modular Bridge Joints | Completed | |
NCHRP 10-53 | Condition Evaluation of Prestressed Steel Strands in Concrete Bridges | Completed | |
NCHRP 10-54 | Quality-Based Performance Rating of Contractors for Prequalification and Bidding Purposes | Completed | |
NCHRP 10-55 | Fiber Reinforced Polymer Composites for Concrete Bridge Deck Reinforcement | Completed | |
NCHRP 10-56 | Accelerated Pavement Testing: Data Guidelines | Completed | |
NCHRP 10-57 | Structural Safety Evaluation Guidelines for Suspension Bridge Parallel-Wire Cables | Completed | |
NCHRP 10-58 | Construction Engineering and Management Research Program | Completed | |
NCHRP 10-58(01) | Time-Related Incentive and Disincentive Provisions in Highway Construction Contracts | Completed | NCHRP Report 652 Time-Related Incentive and Disincentive Provisions in Highway Construction Contracts. |
NCHRP 10-58(02) | Using Contractor-Performed Tests in Quality Assurance | Completed | NCHRP Research Results Digest 323: Using the Results of Contractor-Performed Tests in Quality Assurance |
NCHRP 10-59A | Construction Specifications for Bonded Repair and Retrofit of Concrete Structures Using FRP Composites | Completed | |
NCHRP 10-60 | Avoiding Delays in Constructing Highway Projects (CANCELED) | Completed | |
NCHRP 10-61 | Best-Value Procurement Methods for Highway Construction Projects | Completed | NCHRP Report 561: Best-Value Procurement Methods for Highway Construction Projects |
NCHRP 10-62 | Acceptance Tests for Surface Characteristics of Steel Strands in Pre-Stressed Concrete | Completed | The project final report is available as NCHRP Report 621. |
NCHRP 10-63 | Heat-Straightening Repair of Damaged Steel Bridge Girders: Fatigue and Fracture Performance | Completed | The project final report is available as NCHRP Report 604. |
NCHRP 10-64 | Field Inspection of In-Service FRP Bridge Decks | Completed | |
NCHRP 10-65 | Nondestructive Testing Technology for Quality Control and Acceptance of Flexible Pavement Construction | Completed | The project final report is available as NCHRP Report 626, NDT Technology for Quality Assurance of HMA Pavement Construction. |
NCHRP 10-66 | Predicting In-Service Performance of Flexible Pavements from Accelerated Pavement Testing | Completed | |
NCHRP 10-67 | Texturing of Concrete Pavements | Completed | |
NCHRP 10-68 | Guidelines for the Use of Highway Pavement Warranties | Completed | NCHRP Report 699: Guidelines for the Use of Highway Pavement Warranties |
NCHRP 10-69 | Guidelines for Dowel Alignment in Concrete Pavements | Completed | |
NCHRP 10-70 | Cost-Effective Connection Details for Highway Sign, Luminaire, and Traffic Signal Structures | Final | |
NCHRP 10-71 | Evaluation of CIP Reinforced Joints for Full-Depth Precast Concrete Bridge Decks | Final | |
NCHRP 10-72 | Bridge Deck Design Criteria and Testing Procedures | Completed | |
NCHRP 10-73 | Guide Specification for the Design of Externally Bonded FRP Systems for Repair and Strengthening of Concrete Bridge Elements | Completed | |
NCHRP 10-74 | Development of Fatigue Loading and Design Methodology for High-Mast Lighting Poles | Final | Published as NCHRP Report 718 |
NCHRP 10-75 | Guide for Pavement-Type Selection | Completed | |
NCHRP 10-76 | Methodologies for Evaluating Pavement Strategies and Barriers for Noise Mitigation | Completed | |
NCHRP 10-77 | Use of Automated Machine Guidance (AMG) within the Transportation Industry | Final | |
NCHRP 10-78 | Nighttime Construction Impacts on Safety, Quality, and Productivity | Completed | NCHRP Report 726: A Guidebook for Nighttime Construction: Impacts on Safety, Quality, and Productivity |
NCHRP 10-79 | Guidelines for Quality-Related Pay Adjustment Factors for Pavements | Completed | |
NCHRP 10-80 | New Specifications for Structural Supports for Highway Signs, Luminaires, and Traffic Signals | Final | |
NCHRP 10-81 | Fuel Usage Factors in Highway and Bridge Construction | Completed | The project final report is available as NCHRP Report 744. |
NCHRP 10-82 | Performance-Related Specifications for Pavement Preservation Treatments - Phase I | Completed | |
NCHRP 10-82A | Performance-Related Specifications for Pavement Preservation Treatments | Completed | |
NCHRP 10-83 | Alternative Quality Management Systems for Highway Construction | Final | Completed. Published as NCHRP Report 808.. |
NCHRP 10-84 | Modulus-Based Construction Specification for Compaction of Earthwork and Unbound Aggregate | Completed | |
NCHRP 10-85 | A Guidebook for Construction Manager-at-Risk Contracting for Highway Projects | Final | Completed. The Contractor's Final Report was published by AASHTO. |
NCHRP 10-86 | Bidding Alternative Drainage Pipe Systems | Completed | |
NCHRP 10-86A | Software for Bidding Alternative Drainage Pipe Systems | Completed | |
NCHRP 10-87 | Precision Statements for AASHTO Standard Methods of Test | Completed | |
NCHRP 10-88 | Developing Precision and Bias Statements for AASHTO Standard Methods of Test TP 98 and TP 99 | Completed | |
NCHRP 10-89 | Best Practices Guidebook for Optimal Construction Inspection | Completed | Project terminated. No report. |
NCHRP 10-91A | Sustainable Highway Construction Practices | Final | |
NCHRP 10-92 | Optimizing the Risk and Cost of Materials QA Programs | Completed | |
NCHRP 10-93 | Measuring, Characterizing, and Reporting Pavement Roughness of Low-Speed and Urban Roads | Completed | |
NCHRP 10-94 | Mitigation of Weldment Cracking of Highway Steel Structures due to the Galvanizing Process | Final | |
NCHRP 10-95 | Toughness Requirements for Heat-Affected Zones of Welded Structural Steels for Highway Bridges - Phase I | Completed | |
NCHRP 10-95A | Toughness Requirements for Heat-Affected Zones of Welded Structural Steels for Highway Bridges | Completed | |
NCHRP 10-96 | Guide for Civil Integrated Management (CIM) in Departments of Transportation | Final | |
NCHRP 10-97 | Detection and Remediation of Soluble Salt Contamination Prior to Coating Steel Highway Structures | Completed | |
NCHRP 10-98 | Protocols for Network-Level Macrotexture Measurement | Final | Final report published as NCHRP Research Report 964. |
NCHRP 10-99 | Guidebook for Implementing Constructability Across the Entire Project Development Process: NEPA to Final Design | Final | Published as NCHRP WOD 388. |
NCHRP 11-07 | National Data-Management System for Highway Tort Claims | Completed | |
NCHRP 11-08 | Guide to Acquire Utility Property Interests and Reimburse Utility Relocation Costs | Final | The Guide was published as NCHRP Research Report 1054. The Final Report was published as NCHRP WOD 360. |
NCHRP 12-100 | Guidelines for Maintaining Small Movement Bridge Expansion Joints | Final | Published as AASHTO Guidelines for Maintaining Small Movement Bridge Expansion Joints, 1st Edition |
NCHRP 12-101 | Seismic Evaluation of Bridge Columns with Energy Dissipating Mechanisms | Final | Two Volumes: Volume 1: Research Overview and Volume 2: Guidelines |
NCHRP 12-102 | Recommended AASHTO Guide Specification for ABC Design and Construction | Final | |
NCHRP 12-102A | AASHTO Guide Specification for ABC Design and Construction--Implementation Workshops | Final | The agency’s training modules are available for download. |
NCHRP 12-103 | Bridge Superstructure Tolerance to Total and Differential Foundation Movements | Final | |
NCHRP 12-104 | Guidelines to Improve the Quality of Element-Level Bridge Inspection Data | Final | |
NCHRP 12-105 | Proposed AASHTO Seismic Specifications for ABC Column Connections | Final | |
NCHRP 12-106 | Proposed Guidelines for Performance-Based Seismic Bridge Design | Final | |
NCHRP 12-107 | Proposed AASHTO Bridge Guidelines for Use of ASTM A1010 Steel | Final | AASHTO Special Committee on Research and Innovation (R&I) decided to cancel this project and reallocate project funds to other NCHRP projects |
NCHRP 12-108 | Guide Specification for Service Life Design of Highway Bridges | Final | |
NCHRP 12-109 | Use of 0.7-in. Diameter Strands in Precast Pretensioned Girders | Final | Published as NCHRP Research Report 994 |
NCHRP 12-110 | Proposed New AASHTO Load Rating Provisions for Implements of Husbandry | Final | |
NCHRP 12-111 | Evaluating the Effectiveness of Vibration-Mitigation Devices for Structural Supports of Signs, Luminaires, and Traffic Signals | Final | Final Contractor's Report is available on the project webpage. |
NCHRP 12-112 | Update of the AASHTO LRFD Movable Highway Bridge Design Specifications | Final | |
NCHRP 12-113 | Proposed Modification to AASHTO Cross-Frame Analysis and Design | Final | Phase I is published as NCHRP Research Report 962. Phase II is published as NCHRP Research Report 1045. |
NCHRP 12-114 | Guidance on Seismic Site Response Analysis with Pore Water Pressure Generation | Final | The final deliverable has been published as NCHRP Report 1092 and NCHRP Web-Only Document 383 |
NCHRP 12-115 | Guidelines for Risk-Based Inspection and Strength Evaluation of Suspension Bridge Main Cable Systems | Final | The Final Report has been published as NCHRP Web-Only Document 353. The Guidelines have been forwarded to AASHTO COBS Technical Committee on Bridge Management. |
NCHRP 12-116 | Proposed AASHTO Specifications for Design of Piles for Downdrag | Final | Further work will be conducted under NCHRP 12-116A in 2020 |
NCHRP 12-116A | Proposed AASHTO Specifications for Design of Piles for Downdrag | Final | Published as NCHRP Research Report 1112 and NCHRP Web-Only Document 398 |
NCHRP 12-117 | Guidelines for Corrosion Protection of Steel Bridges Using Duplex Coating Systems | Final | The Final Report is published as NCHRP Report 1048. The Guidelines have been forwarded to AASHTO COBS Technical Committee on Bridge Preservation |
NCHRP 12-118 | Design and Construction Specifications for Bonded and Unbonded Post-Tensioned Concrete Bridge Elements | Completed | |
NCHRP 12-119 | MASH Railing Load Requirements for Bridge Deck Overhang | Final | Published as NCHRP Research Report 1078 |
NCHRP 12-120 | Stainless Steel Strands for Prestressed Concrete Bridge Elements | Active | Research In Progress |
NCHRP 12-121 | Guidelines for the Design of Prestressed Concrete Bridge Girders Using FRP Auxiliary Reinforcement | Active | Research In Progress |
NCHRP 12-122 | Proposed AASHTO Guidelines for Applications of Unmanned Aerial Systems Technologies for Element-Level Bridge Inspection | Final | Published as NCHRP Research Report 1114 |
NCHRP 12-123 | Proposed AASHTO Guideline for Load Rating of Segmental Bridges | Completed | Will be published as NCHRP Research Report 1128 |
NCHRP 12-124 | Design of Stud Shear Connectors in Composite Steel Bridges | Active | Research In Progress |
NCHRP 12-125 | Earthquake-Induced Bridge Displacements | Active | Research In Progress |
NCHRP 12-126 | Design and Testing of High-Load Multi-Rotational Disc Bearings for Bridges | Pending | A research agency has been selected for the project. The contracting process is underway. |
NCHRP 12-127 | Load Rating and Posting of Long-Span Bridges | Active | Research In Progress |
NCHRP 12-128 | Flexural Resistance of Skewed and Curved Steel I-Girder Bridges | RFP | |
NCHRP 12-129 | Evaluating Concrete Girders with Noncompliant Shear Details | Pending | |
NCHRP 12-15(5) | Fatigue Behavior of Variable Loaded Bridge Details Near the Fatigue Limit | Final | |
NCHRP 12-23 | Recommended Revisions to the AASHTO Manual for Maintenance Inspection of Bridges | Completed | |
NCHRP 12-26(2) | Distribution of Wheel Loads on Highway Bridges | Completed | |
NCHRP 12-27 | Welded Repair of Cracks in Steel Bridge Members | Completed | |
NCHRP 12-28(01) | Load Capacity Evaluation of Existing Bridges | Completed | |
NCHRP 12-28(02) | Bridge Management Systems | Completed | |
NCHRP 12-28(02)A | Bridge Management Systems Software | Completed | |
NCHRP 12-28(02)B | Bridge Management Systems Software | Completed | |
NCHRP 12-28(02)C | Conversion of BRIDGIT Bridge Management Software to Windows | Completed | |
NCHRP 12-28(03) | Fatigue Evaluation Procedures for Steel Bridges | Completed | |
NCHRP 12-28(06) | Distortion-Induced Fatigue Cracking in Steel Bridges | Completed | |
NCHRP 12-28(07) | Guidelines for Evaluating Corrosion Effects in Existing Steel Bridges | Completed | |
NCHRP 12-28(10) | Guidelines for Determining Redundancy in Steel Bridges | Completed | |
NCHRP 12-28(11) | Development of Site-Specific Load Models for Bridge Rating | Completed | |
NCHRP 12-28(12) | Inelastic Rating Procedures for Steel Beam and Girder Bridges | Completed | |
NCHRP 12-28(13) | Nondestructive Load Testing for Bridge Evaluation and Rating | Completed | |
NCHRP 12-28(13)A | Bridge Rating Through Nondestructive Load Testing | Completed | |
NCHRP 12-29 | Design of Simple-Span Precast Prestressed Bridge Girders Made Continuous | Completed | |
NCHRP 12-30 | Fatigue of Cables in Cable-Stayed Bridges | Completed | |
NCHRP 12-31 | Notch Toughness Variability in Bridge Steel Plates | Final | |
NCHRP 12-33 | Development of a Comprehensive Bridge Specification and Commentary | Completed | |
NCHRP 12-33A | Development of a Comprehensive Bridge Specification and Commentary---Timber Structures and Code Calibration | Completed | |
NCHRP 12-33B | Development of a Comprehensive Bridge Specification and Commentary---Concrete Structures | Completed | |
NCHRP 12-33C | Development of a Comprehensive Bridge Specification and Commentary---Soil-Structure Interaction Systems | Completed | |
NCHRP 12-34 | Update of AASHTO Standard Specifications for Highway Bridges: Division II---Construction | Completed | |
NCHRP 12-35 | Recommended Specifications for the Design of Foundations, Retaining Walls, and Substructures | Completed | |
NCHRP 12-36 | Redundancy in Highway Bridge Superstructures | Completed | |
NCHRP 12-36(2) | Redundancy in Highway Bridge Superstructures: Phase 2 | Completed | |
NCHRP 12-37 | Transverse Cracking in Newly Constructed Bridge Decks | Completed | |
NCHRP 12-38 | Improved Design Specifications for Horizontally Curved Steel Girder Highway Bridges | Completed | |
NCHRP 12-39 | Design Specifications for Debris Forces on Highway Bridges | Completed | |
NCHRP 12-40 | Fatigue Criteria for Modular Bridge Expansion Joints | Final | |
NCHRP 12-41 | Rapid Replacement of Bridge Decks | Completed | |
NCHRP 12-42 | LRFD Bridge Design Specifications Support | Completed | |
NCHRP 12-43 | Life-Cycle Cost Analysis for Bridges | Completed | |
NCHRP 12-44 | Recommended Specifications for the Design of Movable Highway Bridges | Completed | |
NCHRP 12-45 | Recommended Specifications for Large-Span Culverts | Completed | |
NCHRP 12-46 | Manual for Condition Evaluation and Load Rating of Highway Bridges Using Load and Resistance Factor Philosophy | Completed | |
NCHRP 12-47 | Redundancy in Highway Bridge Substructures | Completed | |
NCHRP 12-48 | Design of Highway Bridges for Extreme Events | Completed | |
NCHRP 12-49 | Comprehensive Specification for the Seismic Design of Bridges | Completed | |
NCHRP 12-50 | Bridge Software-Validation Guidelines and Examples | Completed | |
NCHRP 12-51 | Effect of Truck Weight on Bridge Network Costs | Completed | |
NCHRP 12-52 | LRFD Specifications for Horizontally Curved Steel Girder Highway Bridges | Completed | |
NCHRP 12-53 | Connection Between Simple-Span Precast Concrete Girders Made Continuous | Completed | |
NCHRP 12-54 | Integral Connections of Steel Bridge Structures | Completed | |
NCHRP 12-55 | Load and Resistance Factors for Earth Pressures on Bridge Substructures and Retaining Walls | Completed | |
NCHRP 12-55A | Load and Resistance Factors for Earth Pressures on Bridge Substructures and Retaining Walls | Completed | |
NCHRP 12-56 | Application of the LRFD Bridge Design Specifications to High-Strength Structural Concrete: Shear Provisions | Completed | |
NCHRP 12-57 | Extending Span Ranges of Precast, Prestressed Concrete Girders | Completed | |
NCHRP 12-58 | Effective Slab Width for Composite Steel Bridge Members | Completed | |
NCHRP 12-59 | Design and Construction of Geosynthetic-Reinforced Soil (GRS) Abutments for Bridge Support | Completed | NCHRP Report 556: Design and Construction Guidelines for Geosynthetic-Reinforced Soil Bridge Abutments with a Flexible Facing |
NCHRP 12-59(01) | Seismic Design of Geosynthetic-Reinforced Soil (GRS) Bridge Abutments with Flexible Facing | Completed | |
NCHRP 12-60 | Transfer, Development, and Splice Length for Strand/Reinforcement in High-Strength Concrete | Completed | |
NCHRP 12-61 | Simplified Shear Design of Structural Concrete Members | Completed | |
NCHRP 12-62 | Simplified Live-Load Distribution-Factor Equations | Completed | |
NCHRP 12-62A | Simplified Live Load Distribution-Factor Equations-Phase II | Completed | |
NCHRP 12-63 | Legal Truck Loads and AASHTO Legal Loads for Posting | Completed | |
NCHRP 12-64 | Application of the LRFD Bridge Design Specifications to High-Strength Structural Concrete: Flexure and Compression Provisions | Completed | |
NCHRP 12-65 | Full-Depth, Precast-Concrete Bridge Deck Panel Systems | Completed | |
NCHRP 12-66 | AASHTO LRFD Specifications for Serviceability in the Design of Bridge Foundations | Final | Contract was terminated on October 24, 2008 |
NCHRP 12-67 | Multiple-Objective Optimization for Bridge Management Systems | Completed | |
NCHRP 12-68 | Improved Rotational Limits of Elastomeric Bearings | Completed | |
NCHRP 12-69 | Design and Construction Guidelines for Long-Span Decked Precast, Prestressed Concrete Girder Bridges | Completed | |
NCHRP 12-70 | Seismic Analysis and Design of Retaining Walls, Buried Structures, Slopes, and Embankments | Final | |
NCHRP 12-71 | Design Specifications and Commentary for Horizontally Curved Concrete Box-Girder Highway Bridges | Completed | |
NCHRP 12-72 | Blast-Resistant Highway Bridges: Design and Detailing Guidelines | Final | |
NCHRP 12-73 | Design Guidelines for Durability of Bonded CFRP Repair/Strengthening of Concrete Beams | Completed | |
NCHRP 12-74 | Development of Precast Bent Cap Systems for Seismic Regions | Final | |
NCHRP 12-75 | Design of FRP Systems for Strengthening Concrete Girders in Shear | Completed | |
NCHRP 12-76 | Protocols for Collecting and Using Traffic Data in Bridge Design | Final | |
NCHRP 12-77 | Structural Concrete Design with High-Strength Steel Reinforcement | Final | |
NCHRP 12-78 | Evaluation of Load Rating by Load and Resistance Factor Rating | Final | |
NCHRP 12-79 | Guidelines for Analytical Methods and Erection Engineering of Curved and Skewed Steel Deck-Girder Bridges | Final | Published as NCHRP Report 725 |
NCHRP 12-80 | LRFD Minimum Flexural Reinforcement Requirements | Final | |
NCHRP 12-81 | Evaluation of Fatigue on the Serviceability of Highway Bridges | Final | Published as NCHRP Report 721 |
NCHRP 12-82 | Developing Reliability-Based Bridge Inspection Practices | Final | NCHRP 12-82(01)—Phase II started on November 26, 2012 and has an anticipated termination date of March 25, 2014. Phase II Funds is $149,542 |
NCHRP 12-82(01) | Developing Reliability-Based Bridge Inspection Practices: Case Studies | Final | |
NCHRP 12-83 | Calibration of LRFD Concrete Bridge Design Specifications for Serviceability | Final | |
NCHRP 12-84 | Guidelines for the Load and Resistance Factor Design and Rating of Riveted and Bolted Gusset-Plate Connections for Steel Bridges | Final | |
NCHRP 12-85 | Highway Bridge Fire Hazard Assessment | Final | The agency's final deliverables are available for download |
NCHRP 12-86 | Bridge System Safety and Redundancy | Final | |
NCHRP 12-87 | Fracture-Critical System Analysis for Steel Bridges | Final | |
NCHRP 12-87A | Fracture-Critical System Analysis for Steel Bridges | Final | |
NCHRP 12-88 | Synthesis on System Performance of Accelerated Bridge Construction Connections in Moderate-to-High Seismic Regions | Final | |
NCHRP 12-89 | Recommended AASHTO LRFD Tunnel Design and Construction Specifications | Final | |
NCHRP 12-90 | Guidelines for Shielding Bridge Piers | Final | The research report published as NCHRP Research Report 892 |
NCHRP 12-91 | Strand Debonding for Pretensioned Girders | Final | |
NCHRP 12-92 | Proposed LRFD Bridge Design Specifications for Light Rail Transit Loads | Final | |
NCHRP 12-93 | Contribution of Steel Casing to Single Shaft Foundation Structural Resistance | Final | |
NCHRP 12-94 | LRFD Minimum Flexural Reinforcement Requirements | Final | |
NCHRP 12-95 | Connection Details of Adjacent Precast Concrete Box Beam Bridges | Final | A decision was made to discontinue work on the project beyond Phase I. The remaining work will be conducted in 2017 under NCHRP 12-95A. |
NCHRP 12-95A | Proposed AASHTO Guidelines for Adjacent Precast Concrete Box Beam Bridge Systems | Final | The final deliverable has been published as NCHRP Report 1026 |
NCHRP 12-96 | Simplified Full-Depth Precast Concrete Deck Panel Systems | Final | |
NCHRP 12-97 | Guide Specification for the Design of Concrete Bridge Beams Prestressed with CFRP Systems | Completed | |
NCHRP 12-98 | Recommended Guidelines for Prefabricated Bridge Elements and Systems Tolerances and Dynamic Effects of Bridge Moves | Final | |
NCHRP 12-99 | Guidelines for Calculating Dynamic Effects in Large-Scale Bridge Moves | Final | NCHRP Project 12-98 has been expanded in scope and budget to include this project. |
NCHRP 13-02 | Guidelines for Selection and Application of Warning Lights on Roadway-Operations Equipment | Completed | |
NCHRP 13-03 | Decision Making for Outsourcing and Privatization of Vehicle and Equipment Fleet Maintenance - Phase I | Completed | |
NCHRP 13-03A | Decision Making for Outsourcing and Privatization of Vehicle and Equipment Fleet Maintenance | Completed | |
NCHRP 13-04 | Guide for Optimal Replacement Cycles of Highway Operations Equipment | Completed | |
NCHRP 13-05 | Guide for Utilization Measurement and Management of Fleet Equipment | Final | |
NCHRP 13-06 | Guide for the Formulation of Long-Range Plans for Replacement Needs and Budget of Highway Operations Equipment - Phase I | Completed | |
NCHRP 13-06A | Guide for the Formulation of Long-Range Plans and Budgets for Replacement of Highway Operations Equipment | Completed | |
NCHRP 13-07 | Guide to Calculating Ownership and Operating Costs of Department of Transportation Vehicle and Equipment Fleet | Final | |
NCHRP 13-08 | Guideline for Decision-Making for Repair vs. Replacement of Highway Maintenance Equipment | Completed | |
NCHRP 13-09 | Maximizing Proceeds from the Fleet Asset Disposal Sales Process | Final | |
NCHRP 13-10 | Guidelines for Maintenance of Uncrewed Aircraft Systems Used in Transportation Infrastructure | RFP | |
NCHRP 14-07 | Interactive Microcomputer Network for Innovative Maintenance Operations | Completed | |
NCHRP 14-08 | Chip Seal Coats for High-Traffic-Volume Asphalt Concrete Pavements | Completed | |
NCHRP 14-08A | Chip Seal Coats for High-Traffic-Volume Asphalt Concrete Pavements | Completed | |
NCHRP 14-09(1) | Effective Maintenance Budget Strategies | Completed | |
NCHRP 14-09(2) | Incorporation of Maintenance Considerations in Highway Design | Completed | |
NCHRP 14-09(3) | Maintenance Contracting | Completed | |
NCHRP 14-09(4) | Role of Highway Maintenance in Integrated Management Systems | Completed | |
NCHRP 14-09(5) | Impacts of Environmental, Health, and Safety Regulations on Highway Maintenance | Completed | |
NCHRP 14-09(6) | Professional Development of Maintenance Engineers and Managers | Completed | |
NCHRP 14-10 | Improvements in Data Acquisition Technology for Maintenance Management Systems | Completed | |
NCHRP 14-11 | Effective Motivation of Highway Maintenance Personnel | Completed | |
NCHRP 14-11(2) | Enhancement to Program for Effective Motivation of Highway Maintenance Personnel | Completed | |
NCHRP 14-12 | Highway Maintenance Quality Assurance | Completed | |
NCHRP 14-13 | Customer-Driven Benchmarking for Highway Maintenance Activities | Completed | |
NCHRP 14-14 | Guide for Optimal Timing of Pavement Preventive Maintenance Treatment Applications | Completed | |
NCHRP 14-15 | Developing a National Database System for Maintenance Actions on Highway Bridges | Completed | |
NCHRP 14-16 | Guidelines for Vegetation Management | Completed | The final report has been received and provided to AASHTO for ballot. |
NCHRP 14-17 | Manual for Emulsion-Based Chip Seals for Pavement Preservation | Completed | |
NCHRP 14-18 | Determining Highway Maintenance Costs | Completed | |
NCHRP 14-19 | Culvert Rehabilitation to Maximize Service Life While Minimizing Direct Costs and Traffic Disruption | Final | |
NCHRP 14-20 | Consequences of Delayed Maintenance - Phase I | Completed | |
NCHRP 14-20A | Consequences of Delayed Maintenance of Highway Assets | Completed | |
NCHRP 14-21 | Resource Allocation Framework to Meet Highway Asset Preservation Needs | Final | |
NCHRP 14-22 | Effective Removal of Pavement Markings | Final | Completed. Published as NCHRP Report 759 |
NCHRP 14-23 | Practical Bridge Preservation Actions and Investment Strategies | Final | A decision was made to discontinue work on the project beyond Phase II. Further research related to bridge preservation actions will be performed under NCHRP Project 14-36. |
NCHRP 14-24 | Guidance for Communicating the Value of Highway System Maintenance and Preservation | Final | |
NCHRP 14-25 | Guide for Selecting Level-of-Service Targets for Maintaining and Operating Highway Assets | Completed | |
NCHRP 14-26 | Culvert and Storm Drain System Inspection Manual | Final | |
NCHRP 14-27 | A Guide for the Preservation of Highway Tunnel Systems | Final | |
NCHRP 14-28 | Inspection Guidelines for Bridge Post-Tensioning and Stay Cable Systems Using NDE Methods | Final | |
NCHRP 14-29 | Assessing, Coding, and Marking of Highway Structures in Emergency Situations | Completed | |
NCHRP 14-30 | Spot Painting to Extend Highway Bridge Coating Life | Final | |
NCHRP 14-31 | Developing a Pavement-Maintenance Database System | Completed | |
NCHRP 14-32 | Proposed Revisions to the AASHTO Movable Bridge Inspection, Evaluation, and Maintenance Manual | Final | |
NCHRP 14-33 | Pavement Performance Measures that Consider the Contributions of Preservation Treatments | Completed | |
NCHRP 14-34 | Guide for Performance Measures in Snow and Ice Control Operations | Completed | |
NCHRP 14-35 | Acceptance Criteria of Complete Joint Penetration Steel Bridge Welds Evaluated Using Enhanced Ultrasonic Methods | Final | |
NCHRP 14-36 | Proposed AASHTO Guide for Bridge Preservation Actions | Final | Published as NCHRP Research Report 950 |
NCHRP 14-36(01) | Implementation of Bridge Preservation Actions | Active | Research In Progress |
NCHRP 14-37 | Guide Specifications for the Construction of Chip Seals and Microsurfacing | Completed | |
NCHRP 14-38 | Guide for Timing of Asphalt-Surfaced Pavements Preservation | Completed | |
NCHRP 14-39 | Using Vegetated Compost Blankets to Achieve Highway Runoff Volume and Pollutant Reduction | Final | Published as NCHRP Research Report 1040. |
NCHRP 14-40 | Transforming Roadside Management and Technology Practices for the Benefit of Safety, Ecology, and Economy | Final | |
NCHRP 14-41 | Permanent Vegetation Control Treatments for Roadsides | Final | |
NCHRP 14-42 | Determining the Impact of Connected and Automated Vehicle Technology on State DOT Maintenance Programs | Final | NCHRP Research Report 1084 and NCHRP Research Report 1119 are now available. |
NCHRP 14-43 | Construction Guide Specifications for Cold Central Plant Recycling and Cold In-Place Recycling | Final | Report Published as NCHRP Web-Only-Document 363 |
NCHRP 14-44 | Guide Specifications for the Construction of Slurry Seals, Scrub Seals, and Tack Coats | Completed | |
NCHRP 14-45 | Guidelines for Response Planning, Assessment, and Rapid Restoration of Service of Bridges in Extreme Events | Completed | |
NCHRP 14-46 | Guidelines for the Maintenance and Construction of Rumble Strips | Active | |
NCHRP 14-47 | Tools and Technology for Roadside Landscape Asset Management | Completed | Research is complete. Final report under review. |
NCHRP 14-48 | Guidance for the Construction of Sand Seals and Ultra-thin Bonded Wearing Courses | Completed | |
NCHRP 15-10 | Development of a Design/Graphics Interface System | Completed | |
NCHRP 15-11 | Computer-Aided Analysis of Highway Encroachments on Mobile Boundary Streams | Completed | |
NCHRP 15-11A | BRI-STARS Maintenance Support and Enhancement | Completed | |
NCHRP 15-12 | Roadway Widths for Low Traffic Volume Roads | Completed | |
NCHRP 15-13 | Long-Term Performance of Geosynthetics in Drainage Applications | Completed | |
NCHRP 15-14(1) | Intersection Sight Distance | Completed | |
NCHRP 15-14(2) | Median Intersection Design | Completed | |
NCHRP 15-15 | Collection and Presentation of Roadway Inventory Data | Completed | |
NCHRP 15-16 | Superelevation Distribution Methods and Transition Designs | Final | |
NCHRP 15-16A | Superelevation Distribution Methods and Transition Designs | Final | |
NCHRP 15-17 | Geometric Design Consistency on Higher-Speed, Non-Urban, Two-Lane Roads | Final | |
NCHRP 15-18 | Design Speed and Operating Speed | Final | |
NCHRP 15-19 | Application of Context-Sensitive Design Principles | Final | |
NCHRP 15-20 | Planning, Design, and Operation of Pedestrian Facilities | Final | |
NCHRP 15-21 | Review of Truck Characteristics as Factors in Roadway Design | Completed | |
NCHRP 15-22 | Safety Consequences of Flexibility in Highway Design | Completed | |
NCHRP 15-23 | Recommended Unit Conversions and Updates of the AASHTO Model Drainage Manual and Highway Drainage Guidelines | Completed | Updated versions of the AASHTO Highway Drainage Guidelines and the AASHTO Model Drainage Guidelines delivered to AASHTO |
NCHRP 15-24 | Hydraulic Loss Coefficients for Culverts | Completed | NCHRP Report 734 Hydraulic Loss Coefficients for Culverts |
NCHRP 15-25 | Alternatives to Design Speed for Selection of Roadway Design Criteria | Completed | |
NCHRP 15-26 | Passing Sight Distance Criteria | Final | |
NCHRP 15-27 | Safety Impacts of Design Element Trade-Offs | Completed | The final report is available as NCHRP Report 633. |
NCHRP 15-28 | Modernize and Upgrade CANDE for Analysis and Design of Buried Structures | Completed | |
NCHRP 15-29 | Recommended Design Specifications for Live Load Distribution to Buried Structures | Final | |
NCHRP 15-30 | Median Intersection Design for Rural High-Speed Divided Highways | Final | |
NCHRP 15-31 | Design Guidance for Freeway Mainline Ramp Terminals | Completed | Continued as NCHRP 15-31A |
NCHRP 15-31A | Design Guidance for Freeway Mainline Ramp Terminals | Final | |
NCHRP 15-32 | Context Sensitive Solutions: Quantification of the Benefits in Transportation | Completed | The project final report is available as NCHRP Report 642: Quantifying the Benefits of Context Sensitive Solutions. |
NCHRP 15-32A | Facilitating Implementation of the Guidelines for Quantifying the Benefits of Content Sensitive Solutions | Completed | |
NCHRP 15-33 | Guide for Transportation Landscape and Environmental Design | Completed | The final report has been received and is being held for further revision. |
NCHRP 15-34 | Performance-Based Analysis of Geometric Design of Highways and Streets | Completed | |
NCHRP 15-34A | Performance-Based Analysis of Geometric Design of Highways and Streets | Final | |
NCHRP 15-35 | Geometric Design of Driveways | Completed | NCHRP Report 659: Guide for the Geometric Design of Driveways and the Contractor's Final Report NCHRP Web-Only Document 151: Geometric Design of Driveways are available. |
NCHRP 15-36 | Estimating Joint Probabilities of Design Coincident Flows at Stream Confluences | Final | Completed. Published as NCHRP Web Only Report 199 |
NCHRP 15-37 | Revising the AASHTO Guide for the Development of Bicycle Facilities | Completed | The final report has been distributed to AASHTO for ballot. |
NCHRP 15-38 | Structural Design Requirements for Culvert Joints | Final | The contractor's final report available online as NCHRP Web-Only Document 190 |
NCHRP 15-39 | Superelevation Criteria for Sharp Horizontal Curves on Steep Grades | Final | Completed. Published as NCHRP Report 774. |
NCHRP 15-40 | Design Guidance for High-Speed to Low-Speed Transition Zones for Rural Highways | Final | |
NCHRP 15-41 | Sag Vertical Curve Design Criteria for Headlight Sight Distance | Final | |
NCHRP 15-42 | Recommended Bicycle Lane Widths for Various Roadway Characteristics | Completed | |
NCHRP 15-43 | Second Edition of the TRB Access Management Manual | Final | Completed. Published by TRB as the Second Edition of the TRB Access Management Manual |
NCHRP 15-44 | Guidelines for the Use of Mobile LIDAR in Transportation Applications | Completed | The guide is available as NCHRP Report 748. |
NCHRP 15-45 | | Completed | |
NCHRP 15-46 | Design-Management Guide for Design-Build and Construction Manager/General Contractor Projects | Final | |
NCHRP 15-47 | Developing an Improved Highway Geometric Design Process | Final | |
NCHRP 15-48 | Guidelines for Designing Low- and Intermediate-Speed Roadways that Serve All Users | Final | |
NCHRP 15-49 | Guidelines for Implementing Managed Lanes | Completed | |
NCHRP 15-50 | Guidelines for Integrating Safety and Cost-Effectiveness into Resurfacing, Restoration, and Rehabilitation Projects | Final | Published as NCHRP Report 876 |
NCHRP 15-50(01) | Implementation Assessment of 3R Design Guidelines | Final | Published as NCHRP Report 876 |
NCHRP 15-51 | Pre-construction Services Cost Estimating Guidebook | Final | |
NCHRP 15-52 | Developing a Context-Sensitive Functional Classification System for More Flexibility in Geometric Design | Final | Published as NCHRP Report 855 |
NCHRP 15-53 | Roadside Barrier Designs Near Bridge Ends with Restricted Rights of Way | Final | Published as NCHRP Research Report 1013 and NCHRP WOD 334. |
NCHRP 15-54 | Proposed Modifications to AASHTO Culvert Load Rating Specifications | Final | Available as NCHRP Web-only Document 268 in January 2020 |
NCHRP 15-55 | Guidance to Predict and Mitigate Dynamic Hydroplaning on Roadways | Final | |
NCHRP 15-56 | Guidelines for Selecting Ramp Design Speeds | Final | Published as NCHRP Web-Only Document 313 |
NCHRP 15-57 | Highway Capacity Manual Methodologies for Corridors Involving Freeways and Surface Streets | Final | |
NCHRP 15-58 | An Assessment of Safety and Geometric Design Criteria for Diverging Diamond Interchanges | Final | Published as NCHRP Report 959 |
NCHRP 15-59 | Horizontal Sightline Offset Design Criteria, Exceptions, and Mitigation Strategies | Final | Published as NCHRP Research Report 910. |
NCHRP 15-60 | Proposed Update of the AASHTO Guide for the Development of Bicycle Facilities | Completed | In AASHTO balloting process. |
NCHRP 15-61 | Applying Climate Change Information to Hydrologic and Hydraulic Design of Transportation Infrastructure | Completed | |
NCHRP 15-61A | Hydrologic and Hydraulic Design Guide to Incorporate Climate Science in Transportation Infrastructure | Active | Research in progress |
NCHRP 15-62 | Design and Access Management Guidelines for Truck Routes | Final | Published as NCHRP Research Report 943. |
NCHRP 15-63 | Guidance to Improve Pedestrian and Bicycle Safety at Intersections | Final | Published as NCHRP Research Report 926 |
NCHRP 15-64 | Guidelines for the Design of Unsignalized Median Openings in Close Proximity to Signalized Intersections | Final | |
NCHRP 15-66 | Operational Performance and Safety Effects of Arterial Weaving Sections | Final | |
NCHRP 15-67 | Wind Drag Coefficients for Highway Signs and Support Structures | Final | The final deliverable has been published as NCHRP Report 1012 |
NCHRP 15-68 | Effective Low-Noise Rumble Strips | Final | The remaining tasks will be completed under NCHRP 15-68(01). |
NCHRP 15-68(01) | Effective Low-Noise Rumble Strips | Final | Published as NCHRP Research Report 1107. |
NCHRP 15-69 | Utility Conflict Impacts During Highway Construction | Final | The report and guide have been published as NCHRP WOD 396 and NCHRP Research Report 1110, respectively. |
NCHRP 15-70 | Valuation and Compensation for Accommodating Utility and Communications Installations in Public Rights of Way | Final | |
NCHRP 15-71 | Contingency Factors to Account for Risk in Early Construction Cost Estimates for Transportation Infrastructure Projects | Final | |
NCHRP 15-72 | Identification of AASHTO Context Classifications | Final | Published as NCHRP Research Report 1022. |
NCHRP 15-73 | Design Options to Reduce Turning Motor Vehicle – Bicycle Conflicts at Controlled Intersections | Final | Published as NCHRP Research Report 1125 |
NCHRP 15-74 | Safety Evaluation of On-Street Bicycle Facility Design Features | Completed | |
NCHRP 15-75 | Update of the Policy on Geometric Design of Highways and Streets Guidance on Acceleration/Deceleration and Stopping Sight Distance Criteria | Final | |
NCHRP 15-76 | Designing for Target Speed | Completed | Continued as NCHRP 15-76(01) |
NCHRP 15-76(01) | Designing for Target Speed | Active | Research in progress. |
NCHRP 15-77 | Aligning Geometric Design with Roadway Context | Final | |
NCHRP 15-78 | Guidebook for Urban and Suburban Roadway Cross-Sectional Reallocation | Final | |
NCHRP 15-79 | Development of Guidance for Non-Standard Roadside Hardware Installations | Active | |
NCHRP 15-80 | Design Guide and Standards for Infrastructure Resilience | Active | Research in progress. |
NCHRP 15-81 | Guideline for Depicting Existing and Proposed Utility Facilities in Design Plans | Active | |
NCHRP 15-82 | Relationship of Speed, Roadway Geometrics, and Crashes on High-Speed Rural Highways | Active | |
NCHRP 15-83 | Develop a Next-Decade Strategic Research Agenda for Geometric Design of Highways and Streets | Anticipated | In development |
NCHRP 15-84 | Roadside Design for the Safety and Comfort of Nonmotorized and Micromobility Users | RFP | |
NCHRP 15-85 | Performance-Based Superelevation Design Criteria | RFP | |
NCHRP 15-86 | Assessing Pedestrian Sight Distance for Crossing Decisions | RFP | |
NCHRP 16-04 | Design Guidelines for Safe and Aesthetic Roadside Treatments in Urban Areas | Completed | |
NCHRP 16-05 | Guidelines for Cost-Effective Safety Treatments of Roadside Ditches | Final | |
NCHRP 17-06A | Service Vehicle Lighting and Traffic Control Systems for Short-Term and Moving Work Zones (Phase II) | Completed | |
NCHRP 17-07 | Guidelines for Converting STOP to YIELD Control at Intersections | Final | |
NCHRP 17-08 | Traffic Barrier and Control Treatments for Restricted Work Zones | Completed | |
NCHRP 17-09 | Effect of Highway Standards on Safety | Completed | |
NCHRP 17-09(2) | Impacts of Resurfacing Projects With and Without Additional Safety Improvements | Completed | |
NCHRP 17-10 | Structural Supports for Highway Signs, Luminaires, and Traffic Signals | Completed | |
NCHRP 17-10(2) | Structural Supports for Highway Signs, Luminaires, and Traffic Signals | Completed | |
NCHRP 17-100 | Leveraging Artificial Intelligence and Big Data to Enhance Safety Analysis | Completed | Publication decision pending. |
NCHRP 17-101 | Applying the Safe System Approach to Transportation Planning, Design, and Operations in the United States | Completed | |
NCHRP 17-102 | Safety Performance for Active Transportation Modes Using Exposure Models | Active | |
NCHRP 17-103 | A Guide and Toolkit for Strategic Decision-Making to Improve Traffic Safety | Active | Research in progress |
NCHRP 17-104 | Enhancement of Roadside Design Safety Prediction Models for the Highway Safety Manual | Active | Research in progress |
NCHRP 17-105 | MASH Crashworthiness of Luminaire Poles | Final | This project is combined with NCHRP Project 22-43 |
NCHRP 17-106 | Motorist Behavior and Safety Impacts on Bicyclists from Centerline and Shoulder Rumble Strips on High-Speed Two-Lane Highways | Active | |
NCHRP 17-107 | Guide for Work Zone Intrusion Prediction and Prevention | Active | Research in progress |
NCHRP 17-108 | Developing Crash Modification Factors for Alternative Intersections | Active | |
NCHRP 17-109 | Crash Modification Factors for Automated Traffic Signal Performance Measures | Active | Research in progress |
NCHRP 17-11 | Determination of Safe/Cost Effective Roadside Slopes and Associated Clear Distances | Completed | |
NCHRP 17-11(02) | Development of Clear Recovery Area Guidelines | Completed | |
NCHRP 17-11(03) | Development of Clear Recovery Area Guidelines | Final | |
NCHRP 17-110 | Vehicle-Based Telemetric Data for State and Local Transportation Agencies | Active | Research in progress. |
NCHRP 17-111 | Speed Management Strategies to Improve Pedestrian and Bicyclist Safety on Arterials and Higher-Speed Roadways | Active | Research in progress |
NCHRP 17-112 | Enhancing Crash Modification Factors and Safety Performance Functions for Pedestrian and Bicyclist Countermeasures | Active | Research in progress |
NCHRP 17-113 | Incorporating Safe System Approach into the NCHRP Report 500 Series | Active | Research underway |
NCHRP 17-114 | Integrated Strategies for Managing Excessive Travel Speed to Improve Safety Performance | Active | |
NCHRP 17-115 | Guide for Marked Crosswalk Design, Spacing, Placement, and Safety | Active | Research in progress |
NCHRP 17-116 | Practical Approaches to Quantifying Safe System Concepts | Active | |
NCHRP 17-117 | Advancing Safety Prediction Methodologies for Horizontal Curves | Active | |
NCHRP 17-118 | Understanding the Impacts of Operational Changes on Safety Performance | Active | Research in progress |
NCHRP 17-119 | Conflict-Based Crash Prediction Method for Intersections | Active | Research in progress |
NCHRP 17-12 | Improved Safety Information to Support Highway Design | Completed | |
NCHRP 17-120 | A Method to Link Crash, Emergency Medical Service, and Trauma Registry Data | Active | Research underway |
NCHRP 17-121 | Using Advanced Technologies to Reduce Commercial Motor Vehicle Crashes in Work Zones | Active | Research is progress. |
NCHRP 17-122 | Strategies and Technologies for Warning, Detection, and Prevention of Trespassing in the Vicinity of Highway-Rail Grade Crossings: State of the Practice and Research Needs | Pending | |
NCHRP 17-123 | Guide for Evaluating the Safety Performance of Shared Railway–Highway Interfaces | Active | |
NCHRP 17-124 | Effectiveness of Speed Reduction in Work Zones | Active | Research underway |
NCHRP 17-125 | Guide for Applying Safe System Principles in the Road Safety Audit Process | Active | |
NCHRP 17-126 | Crash Prediction Models for Alternative and Unconventional Intersections | Active | |
NCHRP 17-127 | Guide for Applying Quantitative Highway Safety Analysis Methods | Active | |
NCHRP 17-128 | Reducing Adverse Driving Behaviors in Work Zones: Strategies and Guidelines | Active | Research in progress |
NCHRP 17-129 | Assessing Safety Performance of Atypical Service Interchanges | Pending | |
NCHRP 17-13 | Strategic Plan for Improving Roadside Safety | Completed | |
NCHRP 17-130 | Training Program to Apply Quantitative Highway Safety Analysis Methods | RFP | |
NCHRP 17-131 | A Guide on Alternative Intersections and Interchanges | RFP | |
NCHRP 17-132 | Toolkit to Support Implementation of the Safe System Approach | Pending | |
NCHRP 17-133 | Applicability of the 85th Percentile for Setting Speed Limits on Freeways, Expressways, and Rural Highways | RFP | |
NCHRP 17-134 | Center Line Buffer Areas for Safety: Implementation Guidelines and Tool | Pending | |
NCHRP 17-135 | Imagery Reference Illustrating Data Elements for Crash Prediction Methodology | RFP | |
NCHRP 17-136 | Safe System Approach for Including Trees in Urban and Suburban Roadway Contexts | RFP | |
NCHRP 17-137 | Crash Prediction Methods for Long-Term Work Zones | Anticipated | In development |
NCHRP 17-138 | Pavement Marking Selection for Bridge and Pavement Preservation Treatments | RFP | |
NCHRP 17-14 | Improved Guidelines for Median Safety | Final | |
NCHRP 17-15 | Accident Mitigation on Congested Rural and Exurban Two- and Three-Lane Highways | Final | |
NCHRP 17-16 | Accident Warrant for Traffic Signals | Final | |
NCHRP 17-17 | Development of Guidelines for Nighttime Road Work to Improve Safety and Operations | Completed | |
NCHRP 17-17(2) | Development of Guidelines for Nighttime Road Work to Improve Safety and Operations | Completed | |
NCHRP 17-18 | AASHTO Strategic Highway Safety Plan Implementation Support | Completed | |
NCHRP 17-18(02) | Web Site Development | Completed | |
NCHRP 17-18(03) | Guidance for Implementation of the AASHTO Strategic Highway Safety Plan | Completed | |
NCHRP 17-18(04) | Highway Safety Manual | Completed | |
NCHRP 17-18(05) | Integrated Management Process to Reduce Highway Injuries and Fatalities Statewide | Completed | |
NCHRP 17-18(05)B | Integrated Safety Management Process - Technical Support | Completed | |
NCHRP 17-18(07) | AASHTO Strategic Highway Safety Plan--Technology Transfer Plan | Completed | |
NCHRP 17-18(08) | Comprehensive Human Factors Guidelines for Road Systems | Completed | |
NCHRP 17-18(09)A | Coordination of Safety Research | Completed | |
NCHRP 17-18(10) | Safe Landscape Awareness Course | Completed | |
NCHRP 17-18(11) | Implementation Plan and Products | Completed | |
NCHRP 17-18(14) | Lane Departure Video | Completed | |
NCHRP 17-18(15) | Local Highway Agency Safety Guides | Completed | |
NCHRP 17-18(19) | White Paper on Alternate Strategies for Safety Improvement Investments | Completed | |
NCHRP 17-20 | Technical Support for the AASHTO Task Force on Roadside Safety (TFRS) | Completed | |
NCHRP 17-21 | Safety of U-Turns at Unsignalized Median Openings | Completed | |
NCHRP 17-22 | Identification of Vehicular Impact Conditions Associated with Serious Ran-Off-Road Crashes | Completed | |
NCHRP 17-23 | Safety Impacts and Other Implications of Raised Speed Limits on High-Speed Roads | Completed | |
NCHRP 17-24 | Use of Event Data Recorder (EDR) Technology for Roadside Crash Data Analysis | Completed | |
NCHRP 17-25 | Crash Reduction Factors for Traffic Engineering and ITS Improvements | Completed | |
NCHRP 17-26 | Methodology to Predict the Safety Performance of Urban and Suburban Arterials | Completed | |
NCHRP 17-27 | Parts I and II of the Highway Safety Manual | Completed | |
NCHRP 17-28 | Pavement Marking Materials and Markers: Safety Impact and Cost-Effectiveness | Completed | |
NCHRP 17-29 | Methodology to Predict the Safety Performance of Rural Multilane Highways | Completed | |
NCHRP 17-30 | Traffic Safety Evaluation of Nighttime and Daytime Work Zones | Completed | |
NCHRP 17-31 | Human Factors Guidelines for Road Systems--Phase 2 | Completed | |
NCHRP 17-32 | Guidance for the Design and Application of Shoulder and Centerline Rumble Strips | Completed | |
NCHRP 17-33 | Effectiveness of Behavioral Highway Safety Countermeasures | Completed | |
NCHRP 17-34 | Prepare Parts IV and V of the Highway Safety Manual | Completed | |
NCHRP 17-35 | Evaluation of Safety Strategies at Signalized Intersections | Completed | |
NCHRP 17-36 | Production of the First Edition of the Highway Safety Manual | Completed | |
NCHRP 17-37 | Pedestrian Predictive Crash Methodology for Urban and Suburban Arterials | Completed | |
NCHRP 17-38 | Highway Safety Manual Implementation and Training Materials | Completed | |
NCHRP 17-40 | Model Curriculum for Highway Safety Core Competencies | Completed | |
NCHRP 17-41 | Human Factors Guidelines for Road Systems - Phase III | Completed | |
NCHRP 17-42 | Development of Information and Data to Support Improved Safety Management and Communication of Safety Needs | Completed | |
NCHRP 17-43 | Long-Term Roadside Crash Data Collection Program | Final | |
NCHRP 17-44 | Factors Contributing to Median Encroachments and Cross-Median Crashes | Final | |
NCHRP 17-45 | Enhanced Safety Prediction Methodology and Analysis Tool for Freeways and Interchanges | Final | |
NCHRP 17-46 | Comprehensive Analysis Framework for Safety Investment Decisions | Final | |
NCHRP 17-47 | Human Factors Guidelines for Road Systems | Final | |
NCHRP 17-48 | Highway Infrastructure and Operations Safety Research Needs | Completed | Published as NCHRP Report 756. |
NCHRP 17-49 | Guide for Effective Tribal Crash Reporting | Completed | Final report published as NCHRP Report 788. |
NCHRP 17-50 | Lead States Initiative for Implementing the Highway Safety Manual | Final | |
NCHRP 17-51(03) | Communication Plan for the National Highway Safety Strategy | Completed | |
NCHRP 17-51(04) | Development of a National Strategy on Highway Safety — TZD Framework | Final | |
NCHRP 17-52 | Using Peer Exchanges to Improve the Effectiveness of a State's Strategic Highway Safety Plan | Final | |
NCHRP 17-53 | Evaluation of the 13 Controlling Criteria for Geometric Design | Final | |
NCHRP 17-54 | Consideration of Roadside Features in the Highway Safety Manual | Final | |
NCHRP 17-55 | Guidelines for Slope Traversability | Final | Published as NCHRP Research Report 911 |
NCHRP 17-56 | Development of Crash Modification Factors for Uncontrolled Pedestrian Crossing Treatments | Final | |
NCHRP 17-57 | Development of a Comprehensive Approach for Serious Traffic Crash Injury Measurement and Reporting Systems | Final | |
NCHRP 17-58 | Safety Prediction Models for Six-Lane and One-Way Urban and Suburban Arterials | Final | |
NCHRP 17-59 | Safety Impacts of Intersection Sight Distance | Completed | |
NCHRP 17-60 | Benefit-Cost Methodology for Behavioral Highway Safety Countermeasures | Active | |
NCHRP 17-61 | Work Zone Crash Characteristics and Countermeasure Guidance | Final | |
NCHRP 17-62 | Improved Prediction Models for Crash Types and Crash Severities | Final | |
NCHRP 17-63 | Guidance for the Development and Application of Crash Modification Factors | Final | |
NCHRP 17-64 | Guidance for the Implementation of the Toward Zero Deaths National Strategy on Highway Safety | Final | |
NCHRP 17-65 | Improved Analysis of Two-Lane Highway Capacity and Operational Performance | Final | |
NCHRP 17-66 | Guidance for Selection of Appropriate Countermeasures for Opposite Direction Crashes | Final | Published as NCHRP Research Report 995. |
NCHRP 17-67 | Identification of Factors Contributing to the Decline of Traffic Fatalities in the United States | Active | |
NCHRP 17-68 | Intersection Crash Prediction Methods for the Highway Safety Manual | Final | |
NCHRP 17-69 | A Strategic Approach to Transforming Traffic Safety Culture to Reduce Deaths and Injuries | Final | The contractor's report is available as NCHRP Web-Only Document 252 |
NCHRP 17-70 | Development of Roundabout Crash Prediction Models and Methods | Final | |
NCHRP 17-71 | Proposed AASHTO Highway Safety Manual, Second Edition | Final | Being completed by NCHRP Project 17-71A |
NCHRP 17-71A | Proposed AASHTO Highway Safety Manual, Second Edition | Completed | Research completed |
NCHRP 17-72 | Update of Crash Modification Factors for the Highway Safety Manual | Final | |
NCHRP 17-73 | Systemic Pedestrian Safety Analysis | Final | |
NCHRP 17-74 | Application of Crash Modification Factors for Access Management | Final | Final report has been published as NCHRP Research Report 974 Volumes 1 and 2 |
NCHRP 17-75 | Leveraging Big Data to Improve Traffic Incident Management | Final | Published as NCHRP Research Report 904. |
NCHRP 17-76 | Guidance for the Setting of Speed Limits | Final | |
NCHRP 17-77 | Guide for Quantitative Approaches to Systemic Safety Analysis | Final | |
NCHRP 17-78 | Understanding and Communicating Reliability of Crash Prediction Models | Final | |
NCHRP 17-79 | Safety Effects of Raising Speed Limits to 75 mph and Higher | Final | |
NCHRP 17-80 | Expansion of Human Factors Guidelines for Road Systems, Second Edition | Completed | |
NCHRP 17-81 | Proposed Macro-Level Safety Planning Analysis Chapter for the Highway Safety Manual | Final | The Final Report was published as NCHRP Research Report 1044. The guide was published as NCHRP WOD 348. |
NCHRP 17-82 | Proposed Guidance for Fixed Objects in the Roadside Design Guide | Final | |
NCHRP 17-83 | Briefings and Training Materials for Implementation of the Highway Safety Manual, Second Edition | Final | Project Cancelled |
NCHRP 17-84 | Pedestrian and Bicycle Safety Performance Functions for the Highway Safety Manual | Final | Published as NCHRP Research Report 1064. |
NCHRP 17-85 | Development and Application of Crash Severity Models for the Highway Safety Manual | Final | |
NCHRP 17-86 | Estimating Effectiveness of Safety Treatments in the Absence of Crash Data | Final | |
NCHRP 17-87 | Enhancing Pedestrian Volume Estimation and Developing HCM Pedestrian Methodologies for Safe and Sustainable Communities | Final | Published as NCHRP WOD 312 and NCHRP Research Report 992 |
NCHRP 17-88 | Roadside Encroachment Database Development and Analysis | Completed | Publication decision pending. |
NCHRP 17-89 | Safety Performance of Part-Time Shoulder Use on Freeways | Completed | |
NCHRP 17-89A | HOV/HOT Freeway Crash Prediction Method for the Highway Safety Manual | Final | |
NCHRP 17-89B | Safety Performance of Part-Time Shoulder Use on Freeways | Anticipated | Cancelled. |
NCHRP 17-90 | Evaluation of Roadside Crash Injury Metrics in MASH | Completed | Agency report available on project's webpage |
NCHRP 17-91 | Assessing the Impacts of Automated Driving Systems (ADS) on the Future of Transportation Safety | Final | Published as NCHRP Research Report 1001/BTSCRP Research Report 2 |
NCHRP 17-92 | Developing Safety Performance Functions for Rural Two-Lane Highways that Incorporate Speed Measures | Completed | Publication decision pending. |
NCHRP 17-93 | Updating Safety Performance Functions for Data-Driven Safety Analysis | Final | |
NCHRP 17-95 | Crash Modification Factors (CMFs) for Intelligent Transportation System (ITS) Applications | Completed | Expired. |
NCHRP 17-96 | Traffic Safety Culture Research Roadmap | Final | |
NCHRP 17-97 | Strategies to Improve Pedestrian Safety at Night | Active | |
NCHRP 17-98 | Guide for Intersection Control Evaluation | Completed | |
NCHRP 17-99 | Assessing Safety Effectiveness of Treatments and Technologies at Highway-Rail Grade Crossings | Active | |
NCHRP 18-03 | Silica Fume Concrete for Bridge Decks | Completed | |
NCHRP 18-04A | Durability of "Early-Opening-to-Traffic" Portland Cement Concrete for Pavement Rehabilitation: Background and Plan for Evaluation | Completed | |
NCHRP 18-04B | Durability of "Early-Opening-to-Traffic" Portland Cement Concrete for Pavement Rehabilitation | Completed | |
NCHRP 18-05 | Relationship of Portland Cement Characteristics to Concrete Durability | Completed | |
NCHRP 18-06 | Service Life of Corrosion-Damaged Reinforced Concrete Bridge Superstructure Elements | Completed | |
NCHRP 18-06A | Service Life of Corrosion-Damaged Reinforced Concrete Bridge Superstructure Elements | Completed | |
NCHRP 18-07 | Prestress Losses in Pretensioned High-Strength Concrete Bridge Girders | Completed | |
NCHRP 18-08 | Supplementary Cementitious Materials to Enhance Durability of Concrete Bridge Decks | Completed | |
NCHRP 18-08A | Supplementary Cementitious Materials to Enhance Durability of Concrete Bridge Decks | Completed | |
NCHRP 18-09A | Guidelines for Reducing Premature Deterioration of Hydraulic Cement Concrete Pavements: Background and Research Plan | Completed | |
NCHRP 18-10 | Procedures for Evaluating Air-Entraining Admixtures for Highway Concrete | Completed | |
NCHRP 18-11 | Improved Specifications and Protocols for Acceptance Tests on Processing Additions in Cement Manufacturing | Completed | |
NCHRP 18-12 | Self-Consolidating Concrete for Precast, Prestressed Concrete Bridge Elements | Completed | |
NCHRP 18-13 | Specifications and Protocols for Acceptance Tests of Fly Ash Used in Highway Concrete | Completed | |
NCHRP 18-14 | Evaluation and Repair Procedures for Precast/Prestressed Concrete Girders with Longitudinal Cracking in the Web | Final | |
NCHRP 18-15 | High-Performance/High-Strength Lightweight Concrete for Bridge Girders and Decks | Completed | |
NCHRP 18-16 | Self-Consolidating Concrete for Cast-in-Place Bridge Components | Completed | |
NCHRP 18-17 | Entrained Air Void System for Durable Highway Concrete | Final | |
NCHRP 18-18 | Design and Construction of Deck Bulb Tee Girder Bridges with UHPC Connections | Final | Published as NCHRP Research Report 999 |
NCHRP 18-19 | Rating Concrete Water Permeability Based on Resistivity Measurements | Completed | |
NCHRP 18-20 | AASHTO LRFD Design, Installation, and Standard Practice of Testing for Cured In-Place Pipe Liners | Completed | Phases I and II have been completed and the remaining tasks have been transferred to NCHRP Project 18-20(01) |
NCHRP 18-20(01) | AASHTO LRFD Design, Installation, and Standard Practice of Testing for Cured In-Place Pipe Liners | Anticipated | Anticipated - Phase I and II were completed by Golder & Associates under the original award for NCHRP 18-20. Pending a new contract to complete the remaining phases. |
NCHRP 18-21 | Utilization of Alternative Supplementary Cementitious Materials in Highway Applications | Pending | Contract pending at this time. |
NCHRP 18-22 | Concrete Shrinkage Measurement and Cracking Mitigation | RFP | |
NCHRP 19-04 | A Review of DOT Compliance with GASB 34 Requirements | Completed | |
NCHRP 19-05 | Assessing and Mitigating Future Impacts to the Federal Highway Trust Fund such as Alternative Fuel Consumption | Final | |
NCHRP 19-06 | Identifying and Quantifying Rates of State Motor Fuel Tax Evasion | Completed | |
NCHRP 19-07 | GASB 34--Methods for Condition Assessment and Preservation | Final | |
NCHRP 19-08 | Costs of Alternative Revenue-Generation Systems | Completed | |
NCHRP 19-10 | AASHTO Partnering Handbook, Second Edition | Completed | Draft final report received August 7, 2017. |
NCHRP 19-11 | Applying Risk Analysis, Value Engineering, and other Innovative Solutions for Project Delivery | Completed | |
NCHRP 19-12 | Guide for Financial Planning and Management in Support of Transportation Asset Management | Final | |
NCHRP 19-13 | Guidance for Use of Land Value Return and Recycling to Fund Transportation | Final | |
NCHRP 19-14 | Right-Sizing Transportation Investments--Methods for Planning and Programming | Completed | |
NCHRP 19-15 | Guidebook for Effective Policies and Practices for Managing Surface Transportation Debt | Final | NCHRP Report 990 has been published |
NCHRP 19-16 | Federal Funding Uncertainty in State, Local, and Regional Departments of Transportation: Impacts, Responses, and Adaptation | Final | |
NCHRP 19-17 | Federal Funding Flexibility: Use of Federal Aid Highway Fund Transfers by State DOTs | Final | |
NCHRP 19-18 | Transitioning Fuel Tax Assessments to a Road Usage Charge | Final | |
NCHRP 19-19 | Sustaining Zero-Fare Public Transit in a Post COVID-19 World: A Guide for State DOTs | Final | Published as NCHRP Research Report 1126 on 9/26/2024 |
NCHRP 19-20 | Interdependence of Federal, State, and Local Transportation Funding and Ownership | Active | |
NCHRP 19-21 | Selecting Revenue Models for Electric Vehicle Charging | Active | Research in progress |
NCHRP 19-22 | Equity Impacts of Transportation Revenue Mechanisms and Changing Trends | Active | Research is progress. |
NCHRP 19-23 | Revenue-Related Strategies for New Mobility Options | Active | |
NCHRP 19-24 | A Guide for Implementing Price Adjustment Clauses to Balance Risk Sharing in Construction Projects | Active | |
NCHRP 19-25 | Funding Needs for Maintenance and Preservation of Transportation Assets | Active | Research in Progress |
NCHRP 19-26 | Modernizing Fuel Tax Revenue Forecasting | Active | |
NCHRP 20-05 | Synthesis of Information Related to Highway Practices | Active | |
NCHRP 20-06 | Legal Problems Arising out of Highway Programs | Active | Hyperlinks to each LRD published since 1999 appear below (Topic 10-03 forward). |
NCHRP 20-06/Topic 17-01 | Update of Selected Studies in Transportation, Volume One: Transportation Contract Law | Completed | |
NCHRP 20-06/Topic 17-02 | Tort Liability Defense Practices for Design Flexibility | Final | |
NCHRP 20-06/Topic 17-03 | First Responders | Completed | |
NCHRP 20-06/Topic 17-04 | Legal Aspects of Performance-Based Specifications for Highway Construction and Maintenance Contracts | Final | |
NCHRP 20-06/Topic 17-05 | The Ramifications of Post-Kelo Legislation on State Transportation | Final | |
NCHRP 20-06/Topic 18-01 | Legal Aspects of Conservation Easements—A Primer for Transportation Agencies | Final | |
NCHRP 20-06/Topic 18-02 | Enforceability of Local Hire Preference Programs | Final | |
NCHRP 20-06/Topic 18-03 | Legal Issues Surrounding the Use of Digital Intellectual Property on Design and Construction Projects | Final | |
NCHRP 20-06/Topic 19-01 | Eminent Domain and Fair Market Value in a Depressed Real Estate Market | Final | |
NCHRP 20-06/Topic 19-02 | Legal Aspect of Environmental Permitting in the Emergency Response Environment | Final | Completed. Published as NCHRP LRD 64. |
NCHRP 20-06/Topic 19-03 | Effect of MUTCD on Tort Liability of Government Transportation Agencies | Final | Completed. Published as NCHRP Legal Research Digest No. 63, Eminent Domain and Fair Market Value in a Depressed Real Estate Market, |
NCHRP 20-06/Topic 19-04 | Use of Social Media in Transportation Agencies | Completed | |
NCHRP 20-06/Topic 20-02 | Liability of Design Builders for Design, Construction and Acquisition Claims | Final | Completed and published as NCHRP LRD 68 |
NCHRP 20-06/Topic 20-03 | Permissible Arranges in Scope of Work for Construction Contracts | Final | Completed. Published as NCHRP LRD 67 |
NCHRP 20-06/Topic 20-04 | Due Diligence for Insurance Coverage in Transportation Construction Contracts | Final | Completed and Published as NCHRP LRD 66 |
NCHRP 20-06/Topic 21-01 | A Look at the Legal Environment for Driverless Vehicles | Final | Completed. Published as NCHRP LRD 69. |
NCHRP 20-06/Topic 21-02 | Claims Related to Stormwater Discharges | Final | Published as Research Results Digest 395: Claims Related to Stormwater Discharge. |
NCHRP 20-06/Topic 21-03 | Takings and Mitigation | Final | Completed. Published as NCHRP Legal Research Digest 70 |
NCHRP 20-06/Topic 21-04 | Liability of Transportation Entity for the Unintentional Release of Secure Data or the Intentional Release of Monitoring Data on Movements or Activities of the Public | Completed | Completed; Published as NCHRP Legal Research Digest 71 |
NCHRP 20-06/Topic 22-01 | Legal Requirements for State DOT Participation in Conservation Plans | Completed | Completed. Published as NCHRP Legal Research Digest, Issue 75 |
NCHRP 20-06/Topic 22-02 | Liability of State Departments of Transportation for Design Errors | Completed | NCHRP Legal Research Digest 74, Issue 74 |
NCHRP 20-06/Topic 22-03 | Primer on Patentability and Use of Ideas Developed by Contractors Performing Work for State and Federal Transportation and Local Planning Agencies | Completed | Completed- published as Legal Research Digest 73 |
NCHRP 20-06/Topic 22-04 | Summary of Federal Law Restricting Use of Highway Safety Data in Tort Litigation | Completed | Completed. |
NCHRP 20-06/Topic 23-01 | Condemnation Hierarchy-Competing Public Uses | Final | Completed-Published as Legal Research Digest 78 |
NCHRP 20-06/Topic 23-04 | The Effectiveness of State False Claims Acts in Protecting State Transportation Funding | Completed | Complete - published as LRD 79 |
NCHRP 20-06/Topic 23-05 | Update of Selected Studies in Transportation Law: Volume Eight, Section 3: Indian Transportation Law | Final | Completed; Published as NCHRP 76 |
NCHRP 20-06/Topic 23-06 | Update of Selected Studies in Transportation Law: Volume Eight, Section 1: Transportation Agencies and Civil Rights | Final | Completed. Published as NCHRP Report |
NCHRP 20-06/Topic 24-01 | Buy America Requirements For Federal Highway Projects | Final | Completed. Published as NCHRP LRD 80. |
NCHRP 20-06/Topic 24-02 | Potential Liability Associated with Unstable Slope Management Programs | Final | Completed. Published as NCHRP LRD 82. |
NCHRP 20-06/Topic 24-03 | Guidelines for Drafting Liability Neutral Transportation Engineering Documents | Final | Completed. Published as NCHRP LRD 83 |
NCHRP 20-06/Topic 24-04 | The Legal Issues Concerning the Use of Transportation Facilities to Generate Revenue for State DOTs | Final | Completed. Published as NCHRP LRD 81. |
NCHRP 20-06/Topic 24-05 | Fix It, Sign It, or Close It: State of Good Repair in an Era of Budget Constraints | Completed | Completed. Published as TCRP LRD 57 and NCHRP LRD 84. |
NCHRP 20-06/Topic 25-01 | Public Liabilities Relating to Driveway Permits | Final | Completed - Published as NCHRP LRD 85. |
NCHRP 20-06/Topic 25-03 | Managing Enhanced Risk in the Mega Project Era | Final | Completed - Published as NCHRP LRD 86. |
NCHRP 20-06/Topic 25-04 | Laws Governing Homeless Encampments in Transportation Rights-of-Way | Final | Completed - Published as NCHRP LRD 87. |
NCHRP 20-06/Topic 25-05 | The Legal Issues Associated with Consequential Damages Provisions in Construction Contracts | Final | Completed. Published as NCHRP LRD 88. |
NCHRP 20-06/Topic 25-06 | Legal Issues and Strategies for Best-Value Procurement for Highway Construction | Completed | Completed. Published as NCHRP Legal Research Digest 90. |
NCHRP 20-06/Topic 25-07 | Review of Statutory and Case Law on Planning and Environmental Linkages | Final | Completed. Published as NCHRP LRD 89. |
NCHRP 20-06/Topic 26-01 | Effects of Indian Treaties on Development and Operation of Transportation Facilities | Completed | Research Completed. Will be published as NCHRP Legal Research Digest 94 |
NCHRP 20-06/Topic 26-02 | Analysis of Arbitration and Holdings in Construction Disputes | Final | Completed. Published as NCHRP Legal Research Digest 92 . |
NCHRP 20-06/Topic 26-03 | Multistate Coordination and Harmonization for AV Legislation | Final | Research Completed. Published as NCHRP LRD 91. |
NCHRP 20-06/Topic 26-04 | Pandemics and Contractual Issues | Final | Research Completed. Published as Legal Research Digest 93. |
NCHRP 20-06/Topic 27-01 | Transportation Agency Liability for Roadside Safety Hardware | Active | Research in progress. |
NCHRP 20-06/Topic 27-02 | State and Local Suspension and Debarment Programs of Contractors | Anticipated | In development |
NCHRP 20-06/Topic 27-03 | Environmental and Planning Law and Transportation | Active | Research is in Progress. |
NCHRP 20-06/Topic 27-04 | Managing Performance for Innovative Technology Contracts | Final | Cancelled. |
NCHRP 20-06/Topic 27-05 | Addressing Liability Issues of Proactive Safety Improvements | Active | Research is in Progress. |
NCHRP 20-07 | Research for AASHTO Standing Committee on Highways | Final | |
NCHRP 20-07/Task 001 | The Development of a Cost-Effectiveness Approach to the Programming of Roadside Safety Improvements | Completed | Completed---Published as NCHRP Report 148 |
NCHRP 20-07/Task 002 | The Relation of Side-Slope Design to Highway Safety | Completed | Completed---Published as NCHRP Report 158 |
NCHRP 20-07/Task 003 | The Development of an Effective Earth-Berm Vehicle Deflector | Completed | Completed---Summarized in NCHRP Research Results Digest 77 |
NCHRP 20-07/Task 004 | Lateral Acceleration and Lateral Tire-Pavement Forces in a Vehicle Traversing Curves Relating to Available Pavement Skid-Resistant Measures | Completed | Completed---Summarized in NCHRP Research Results Digest 55 |
NCHRP 20-07/Task 005 | Effect of Curb Geometry and Location | Completed | Completed---Published as NCHRP Report 150 |
NCHRP 20-07/Task 006 | Development of Impact Attenuators Utilizing Waste Materials | Completed | Completed---Published as NCHRP Report 157 |
NCHRP 20-07/Task 007 | Safety at Narrow Bridge Sites | Completed | Completed---Published as NCHRP Report 203 |
NCHRP 20-07/Task 008 | Energy and Transportation Systems | Completed | |
NCHRP 20-07/Task 009 | Review of Highway Management Studies Co-Sponsored by AASHTO and HUFSAM | Completed | |
NCHRP 20-07/Task 010 | Review of Vehicle Weight/Horsepower Ratio as Related to Passing-Lane Design Criteria | Completed | |
NCHRP 20-07/Task 011 | Longitudinal Occupancy of Freeways by Utilities | Completed | |
NCHRP 20-07/Task 012 | Guidelines for Citizen Participation in Transportation Planning | Completed | |
NCHRP 20-07/Task 013 | Guidelines for Safety Criteria for Low-Volume Roads | Completed | Completed---Published as NCHRP Report 214 |
NCHRP 20-07/Task 014 | A Policy on Geometric Design of Highways and Streets | Completed | |
NCHRP 20-07/Task 015 | Development of a Simplified Pavement Management System | Completed | Completed---Published as NCHRP Report 215 |
NCHRP 20-07/Task 016 | Regulation of Movement of Hazardous Cargoes | Completed | |
NCHRP 20-07/Task 017 | Evaluation of AASHO Road Test Satellite and Environmental Studies | Completed | |
NCHRP 20-07/Task 018 | Standard Specifications for Highway Bridges | Completed | |
NCHRP 20-07/Task 019 | The Engineering Aspects of Highway Traffic Safety in an Age of Limited Resources | Completed | |
NCHRP 20-07/Task 020 | Vehicle Acceleration and Deceleration Characteristics | Completed | |
NCHRP 20-07/Task 021 | Need for Pavement Markings on Low-Volume Roads | Completed | |
NCHRP 20-07/Task 022 | Encasement of Pipelines Through Highway and Railroad Roadbeds | Completed | |
NCHRP 20-07/Task 023 | Contracting Practices and Payment Procedures | Completed | |
NCHRP 20-07/Task 024 | AASHTO Pavement Design Guide | Completed | |
NCHRP 20-07/Task 025 | STRS Support Task | Completed | |
NCHRP 20-07/Task 026 | Research and Development Needs in Construction Engineering Management | Completed | |
NCHRP 20-07/Task 027 | Relationships Between Vehicle Configurations and Highway Design | Completed | |
NCHRP 20-07/Task 028 | AASHTO Guide for Design of Pavement Structures - Training Program | Completed | |
NCHRP 20-07/Task 029 | Pavement Roughness and Rideability - Field Evaluation | Completed | |
NCHRP 20-07/Task 030 | Manual on Subsurface Investigations | Completed | |
NCHRP 20-07/Task 031 | Development of Comprehensive Bridge Specifications and Commentary | Completed | |
NCHRP 20-07/Task 032 | Design and Construction Specifications for Segmental Concrete Bridges | Completed | |
NCHRP 20-07/Task 033 | AASHTO Evaluation of FHWA Research Program | Completed | |
NCHRP 20-07/Task 034 | AASHTO/AWS Bridge Welding Code Commentary and Draft Fracture Control Plan | Completed | |
NCHRP 20-07/Task 035 | Review of Traffic Signal Intensity Standards | Completed | |
NCHRP 20-07/Task 036 | Assessment of Research on High Pressure Truck Tires - Pavement Performance Interaction | Completed | |
NCHRP 20-07/Task 037 | Development of an Asphalt Paving Handbook | Completed | |
NCHRP 20-07/Task 038 | AASHTO Guidelines for Pavement Management Systems | Completed | |
NCHRP 20-07/Task 039 | Revision of AASHTO Pavement Overlay Design Procedures | Completed | |
NCHRP 20-07/Task 040 | AASHTO Contribution to Support of the Highway Research Coordinating Council | Completed | |
NCHRP 20-07/Task 041 | AASHTO Guide for Recruitment and Retention of Transportation Professionals | Completed | |
NCHRP 20-07/Task 042 | Truck Size and Weight Research and Policy | Completed | |
NCHRP 20-07/Task 043 | Revision of the AASHTO Policy on Geometric Design of Highways and Streets | Completed | Task cancelled |
NCHRP 20-07/Task 044 | Division 100 Revision of the AASHTO Guide Specifications for Highway Construction | Completed | |
NCHRP 20-07/Task 045 | Revision to the AASHTO | Completed | |
NCHRP 20-07/Task 046 | AASHTO Guidelines for Bridge Management Systems | Completed | Completed---Summarized in NCHRP Research Results Digest 186 |
NCHRP 20-07/Task 047 | Support for the Joint Committee on Truck Size and Weight | Completed | |
NCHRP 20-07/Task 048 | Development of a System for the Uniform Location of Subject Matter Within Standard Specifications | Completed | |
NCHRP 20-07/Task 049 | Follow-up on USA Asphalt Study Tour of Europe | Completed | |
NCHRP 20-07/Task 050 | White Paper on the Feasibility of Longer Combination Vehicles (LCV) | Completed | |
NCHRP 20-07/Task 051 | Synthesis of the Impacts of Truck Size and Weight on the Transportation System and the Economy | Completed | |
NCHRP 20-07/Task 052 | Support for the Joint Committee on Domestic Freight Policy | Completed | |
NCHRP 20-07/Task 053 | Profilograph Limitations, Correlation, and Calibration for Effective Performance Based Specifications | Completed | |
NCHRP 20-07/Task 054 | Impacts of Conversion to the Metric System | Completed | |
NCHRP 20-07/Task 055 | Support for National Quality Initiatives | Completed | |
NCHRP 20-07/Task 056 | Review of AASHTO | Completed | |
NCHRP 20-07/Task 057 | Joint Task Force on Pavements' Workshop on SHRP LTPP Data and Analysis | Completed | |
NCHRP 20-07/Task 058 | Information and Evaluation of Asphalt Rubber Research | Completed | |
NCHRP 20-07/Task 059 | Transportation Investment and Economic Expansion: Case Studies | Completed | |
NCHRP 20-07/Task 060 | Support for Implementing the Clean Air Act Amendments of 1990 | Completed | |
NCHRP 20-07/Task 061 | Assessment of AASHTO Needs for Metric Conversions & Design of Metrication Clearinghouse | Completed | |
NCHRP 20-07/Task 062 | Rewrite of AASHTO Construction Guide Specifications into Imperative Mood and Metric | Completed | |
NCHRP 20-07/Task 063 | Development of a Manual for State Transportation Research | Completed | |
NCHRP 20-07/Task 064 | Review and Update of the AASHTO Guide for Bridge Maintenance Management, the AASHTO Manual for Bridge Maintenance, and the AASHTO Maintenance Manual | Completed | Completed |
NCHRP 20-07/Task 065 | Recommended Practices for Sampling, Handling, and Testing of Pavement Samples | Completed | |
NCHRP 20-07/Task 066 | Development and Training of Pavement Engineering Personnel | Completed | Completed |
NCHRP 20-07/Task 067 | AASHTO Publications in CD-ROM Format | Completed | Completed |
NCHRP 20-07/Task 068 | Polyethylene Pipe Specifications | Completed | |
NCHRP 20-07/Task 069 | Recommended Revisions to Construction Specifications for Highway Bridges | Completed | Completed |
NCHRP 20-07/Task 070 | Developing Commentary for the ANSI / AASHTO / AWS D1.5-95 Bridge Welding Code Including the Fracture Control Plan | Completed | Completed |
NCHRP 20-07/Task 071 | Co-Sponsorship of Winter Maintenance Program | Completed | Completed |
NCHRP 20-07/Task 072 | Materials Characterization for Input to AASHTO Guide for Design of Pavement Structures | Completed | |
NCHRP 20-07/Task 073 | High Strength Metric Fasteners for Bridge Applications | Completed | Task cancelled |
NCHRP 20-07/Task 074 | Manual for Scientific Inquiry into Transportation Problems: Research Methodologies | Completed | |
NCHRP 20-07/Task 075 | Geometric and Roadside Safety for Very Low Volume Roads | Completed | Completed |
NCHRP 20-07/Task 076 | Installation of Fiber Optic Facilities on Highway and Freeway Rights of Way | Completed | |
NCHRP 20-07/Task 077 | Improved Pavement Design Workshop | Completed | |
NCHRP 20-07/Task 078 | Developing a Measurement System for the AASHTO/TRAC Program | Completed | Completed |
NCHRP 20-07/Task 079 | Incorporating Canadian Projects into TRIS | Completed | Completed |
NCHRP 20-07/Task 080 | Information Clearinghouse for Continuous Quality Improvement | Completed | Completed |
NCHRP 20-07/Task 081 | Effect of Headlamp Design on Retroreflective Signs and Pedestrian Safety | Completed | Completed |
NCHRP 20-07/Task 082 | Enhancement to the Special Products Evaluation List | Completed | |
NCHRP 20-07/Task 083 | Guide for Snow and Ice Control | Completed | Completed |
NCHRP 20-07/Task 084 | Developing a Model for Effective Transfer of Innovative Technologies | Completed | |
NCHRP 20-07/Task 085 | Report on Forum on Economic Returns of Transportation Investments | Completed | |
NCHRP 20-07/Task 086 | Potential Credit Reform: Accessing Unobligated Highway Trust Fund Balances | Completed | Completed |
NCHRP 20-07/Task 087 | Investigate the Need for Research on the Performance of Portland Cement Concrete | Completed | Completed |
NCHRP 20-07/Task 088 | LRFD Specifications for Retaining Walls | Completed | Completed |
NCHRP 20-07/Task 089 | LRFD Specifications for Plastic Pipe and Culverts | Completed | Completed---Published as NCHRP Report 438 |
NCHRP 20-07/Task 090 | The Next Generation of TRAC PAC - A Hands-On Educational Program | Completed | Completed |
NCHRP 20-07/Task 091 | Transportation Implications of Proposed Changes to the National Ambient Air Quality Standards | Final | Completed |
NCHRP 20-07/Task 092 | Durability of Precast Segmental Bridges | Completed | |
NCHRP 20-07/Task 093 | AASHTO Subcommittee Process Evaluation | Completed | |
NCHRP 20-07/Task 094 | Mitigating Nighttime Construction Noise, Vibrations, and Other Nuisances | Completed | |
NCHRP 20-07/Task 095 | Support for the AASHTO 350 Task Force | Completed | |
NCHRP 20-07/Task 096 | Techniques for Acquiring ITS Software | Completed | Completed |
NCHRP 20-07/Task 097 | Bridge Performance Measures | Completed | Completed |
NCHRP 20-07/Task 098 | Shear Design Methodology for Prestressed Concrete | Completed | |
NCHRP 20-07/Task 099 | LRFD Design Criteria for Cotton Duck Pad (CDP) Bridge Bearings | Completed | Completed |
NCHRP 20-07/Task 100 | Safety Appraisal of Suspension Bridge Main Cables | Completed | Completed |
NCHRP 20-07/Task 101 | Lead States Web Site | Completed | |
NCHRP 20-07/Task 102 | Project-Development Policies and Practices | Completed | Completed |
NCHRP 20-07/Task 103 | Development of AASHTO Committee Web Sites | Completed | Completed |
NCHRP 20-07/Task 104 | Support for the Year 2000 National Conference on Pavements | Completed | Completed |
NCHRP 20-07/Task 105 | Planning, Design, and Operation of Pedestrian Facilities | Completed | Completed |
NCHRP 20-07/Task 106 | Thermal Movement Design Procedure for Concrete | Completed | Completed |
NCHRP 20-07/Task 107 | Shear Design Guidelines for Skewed Multi-Beam Bridges | Completed | Completed |
NCHRP 20-07/Task 108 | Geometric Design Policy for Very Low-Volume Local Roads (<400 ADT) | Completed | Completed |
NCHRP 20-07/Task 108A | Geometric Design Policy for Very Low-Volume Local Roads (<400 ADT) | Final | Completed |
NCHRP 20-07/Task 109 | Improved Contracting Methods for Highway Construction Projects | Completed | Completed |
NCHRP 20-07/Task 110 | Support AASHTO Participation in Forum on Transportation Investments and Economic Growth | Completed | Completed |
NCHRP 20-07/Task 111 | Support for the AASHTO Task Group on Retroreflectivity Standards | Completed | |
NCHRP 20-07/Task 112 | Geosynthetic Reinforcement in Roadway Sections | Completed | Completed |
NCHRP 20-07/Task 113 | Corrosion of Metals Above the Ground Surface: Transportation Related Issues | Completed | Completed |
NCHRP 20-07/Task 114 | Context Sensitive Design for Integrating Highway and Street Projects with Communities and the Environment | Completed | Completed |
NCHRP 20-07/Task 115 | Effective Practices in Consultant Usage by State Departments of Transportation | Completed | Completed---Report provided to AASHTO for distribution |
NCHRP 20-07/Task 116 | User's Guide for Evaluating Sign Retroreflectivity | Completed | Completed |
NCHRP 20-07/Task 117 | Benefit/Cost Study of RWIS and Anti-icing Technologies | Completed | Completed |
NCHRP 20-07/Task 118 | A Supplemental Guideline for Highway Design to Accommodate Older Drivers and Pedestrians | Completed | Completed |
NCHRP 20-07/Task 119 | Environmental Best Practices Competition | Completed | |
NCHRP 20-07/Task 120 | Asset Management | Completed | Completed |
NCHRP 20-07/Task 121 | Strategic Plan for Bridge Engineering Research | Completed | |
NCHRP 20-07/Task 122 | Load Rating by Load and Resistance Factor Evaluation Method | Completed | Completed |
NCHRP 20-07/Task 123 | Production of a U.S. Customary System of Units Version of the Year 2000 Highway Capacity Manual | Completed | Funds shifted to Project 03-55(06) contract |
NCHRP 20-07/Task 124 | Cost/Benefits of Constructability Reviews | Completed | Completed |
NCHRP 20-07/Task 125 | Summary of Research Peer Exchange Findings and Recommendations | Completed | Completed |
NCHRP 20-07/Task 126 | Production of the Year 2000 AASHTO Policy on Geometric Design of Highways and Streets | Completed | Completed |
NCHRP 20-07/Task 127 | A Strategic Plan (Road Map) for Pavement Research | Completed | Completed---Summarized in NCHRP Research Results Digest 276 |
NCHRP 20-07/Task 128 | Partnerships in Highway Development and Design for Shaping and Enhancing Communities | Completed | Completed |
NCHRP 20-07/Task 129 | Synthesis of Project Delivery Times | Completed | Completed |
NCHRP 20-07/Task 130 | Development of a Detailed Test Procedure by FTIR Identification for Structural Steel Coatings | Completed | |
NCHRP 20-07/Task 131 | AASHTO Internet Applications Infrastructure | Completed | |
NCHRP 20-07/Task 131A | AASHTO Model Committee Web Site | Completed | Completed |
NCHRP 20-07/Task 131C | AASHTO Transportation Web Portal Concepts | Completed | Completed |
NCHRP 20-07/Task 132 | Final Review and Acceptance of LRFD Specification for Walls | Completed | Completed |
NCHRP 20-07/Task 133 | Improved Live Load Deflection Criteria for Steel Bridges | Completed | Completed |
NCHRP 20-07/Task 134 | Asset Management Education and Communication Materials | Completed | Completed as 20-24(11) |
NCHRP 20-07/Task 135 | Geometric Design Guide for Transit Facilities on Highways and Streets - Phase I | Final | |
NCHRP 20-07/Task 136 | Support for SCOH Task Force on Forest Development Roads | Completed | |
NCHRP 20-07/Task 137 | Synthesis of R&T Partnership Working Group Reports | Completed | Completed |
NCHRP 20-07/Task 138 | Recommended Procedures for the Testing of Rock-Fall Barriers | Completed | Completed |
NCHRP 20-07/Task 139 | Application of European 2+1 Roadway Designs | Completed | Completed---Summarized in NCHRP Research Results Digest 275 |
NCHRP 20-07/Task 140 | TEA-21 Stewardship Report | Completed | Research in progress |
NCHRP 20-07/Task 141 | Conformity Problems Caused by the Mismatch in SIP/Transportation Plan Timeframe | Final | |
NCHRP 20-07/Task 142 | Scoping Study for a National Strategic Plan for Managing Transportation Information | Completed | Completed |
NCHRP 20-07/Task 143 | Synthesis of Practice: AASHTO's National Transportation Product Evaluation Program (NTPEP) | Completed | Completed |
NCHRP 20-07/Task 144 | Delegations of Authority to Expedite Environmental Streamlining | Completed | Completed |
NCHRP 20-07/Task 145 | Update of the AASHTO Guide for Transportation Landscape and Environmental Design | Completed | Cancelled |
NCHRP 20-07/Task 146 | Development of a Standard Protocol for Evaluating Hydrologic and Hydraulic Engineering Software Models | Completed | Research in progress |
NCHRP 20-07/Task 147 | Update of the Design Guidelines for the Control of Blowing and Drifting Snow | Completed | Research in progress |
NCHRP 20-07/Task 148 | Evaluation of Potential Impacts on the State DOTs of the US Access Board's Recommendations on Public Rights-of-Way | Completed | Completed |
NCHRP 20-07/Task 149 | Evaluation of 3D Computer Modeling and Electronic Information Transfer for Efficient Design and Construction of Steel Bridges | Completed | Research in progress |
NCHRP 20-07/Task 150 | Electronic NTPEP Report: A First Generation Query-Based Program to Aid in the Assessment of Pavement Markings and Sign Sheeting Materials | Completed | Completed |
NCHRP 20-07/Task 151A | Transportation Security: Highway Emergency Response Handbook | Completed | Research in progress |
NCHRP 20-07/Task 151B | Transportation Security: Highway Vulnerability Assessment Guide | Completed | Completed |
NCHRP 20-07/Task 151C | Transportation Security: Sharing Information & Task Force Support | Completed | Research in progress |
NCHRP 20-07/Task 152 | Project Cost Estimating A Synthesis of Highway Practice | Completed | Completed |
NCHRP 20-07/Task 153 | Update of the AASHTO Transportation Glossary | Completed | Completed |
NCHRP 20-07/Task 154 | Update of the HOV and Park-and-Ride Facilities Design Guides | Completed | Completed |
NCHRP 20-07/Task 155 | Signing Standards for Two-Lane Exit Ramps with an | Completed | Research in progress |
NCHRP 20-07/Task 156 | Finalize Two Design Examples for AASHTO Guide Specifications for Horizontally Curved Steel Highway Bridges | Completed | |
NCHRP 20-07/Task 157 | Materials Information Management System Software Review | Completed | Completed |
NCHRP 20-07/Task 158 | Survey of State DOT Practice: Outsourcing and Private Sector Utilization | Completed | Completed |
NCHRP 20-07/Task 159 | Privatization and Commercial Use of Public Rights-of-Way | Completed | Completed |
NCHRP 20-07/Task 160 | Two-Lane Road Analysis Methodology in the Highway Capacity Manual | Completed | Completed |
NCHRP 20-07/Task 161 | Revision of the Draft AASHTO Guide for the Planning, Design, and Operation of Pedestrian Facilities | Completed | Completed |
NCHRP 20-07/Task 162 | Guidelines for the Correlation of Test Results from Bench-Scale and Large-Scale Testing on Rolled Erosion Control Products (RECP) | Completed | Completed |
NCHRP 20-07/Task 163 | Innovative Practices in Workforce Development for State Departments of Transportation | Completed | Terminated |
NCHRP 20-07/Task 163A | Innovative Practices in Workforce Development for State Departments of Transportation | Completed | Research in progress |
NCHRP 20-07/Task 164 | Revision of AASHTO R9-97 | Completed | Completed |
NCHRP 20-07/Task 165 | A Policy Synthesis on the Economic Benefits of NTPEP | Completed | Completed |
NCHRP 20-07/Task 166 | Acceleration of Environmental Stewardship Best Practices for Maintenance and Construction | Completed | |
NCHRP 20-07/Task 167 | Development of Recommended Revisions to Draft ADA Guidelines for Accessible Rights-of-Way | Completed | Completed |
NCHRP 20-07/Task 168 | Determination of Appropriate Railing Heights for Bicyclists | Completed | Completed |
NCHRP 20-07/Task 169 | Resolution of Comments submitted on the Draft AASHTO Guide for Context Sensitive Design | Completed | Completed |
NCHRP 20-07/Task 169B | Resolution of Comments submitted on the Draft AASHTO Guide for Context Sensitive Design: Liability Chapter | Completed | Completed |
NCHRP 20-07/Task 170 | Review and Revision of the AASHTO Maintenance Manual for Roadways and Bridges | Completed | Completed |
NCHRP 20-07/Task 171 | Identification of Conflicts with AASHTO Publications Related to Clear Zone | Completed | Completed |
NCHRP 20-07/Task 172 | Recommended AASHTO Design-Build Procurement Guide | Completed | Completed |
NCHRP 20-07/Task 173 | Measuring and Communicating the Effects of Incident Management Improvements | Completed | Completed |
NCHRP 20-07/Task 174 | Use of Positive Protection in Work Zones | Completed | Completed |
NCHRP 20-07/Task 176 | Update of Exhibits for the AASHTO Green Book | Completed | |
NCHRP 20-07/Task 177 | Synthesis of Maintenance and Durability Information for Detectable Warnings on Sidewalks | Completed | Completed |
NCHRP 20-07/Task 178 | Evaluation and Update of NCHRP Project 24-08, | Completed | Completed |
NCHRP 20-07/Task 179 | Development of Operating Procedures for the Standing Committee on Highways | Completed | Completed |
NCHRP 20-07/Task 180 | Summary of International Practice on Bridge Girder and Deck Strengthening with Fiber Reinforced Polymer (FRP) Composites | Completed | |
NCHRP 20-07/Task 181 | Multi-State Transportation Operations Program: Status & Critical Issues | Completed | Completed |
NCHRP 20-07/Task 182 | Evaluation of Highway Innovative Technology Evaluation Center (HITEC) | Completed | Research in progress |
NCHRP 20-07/Task 183 | LRFD Foundation Design Implementation and Specification Development | Completed | Completed |
NCHRP 20-07/Task 184 | Development of a Pavement Preservation Synthesis, Research Plans, and Initiatives | Completed | Research in progress |
NCHRP 20-07/Task 185 | Implementation of Flashing Yellow Arrow Display for Protected/Permissive Left Turn Control | Completed | |
NCHRP 20-07/Task 186 | Updating the Calibration Report for the AASHTO LRFD Code | Completed | Completed |
NCHRP 20-07/Task 187 | Updating the AASHTO Guide for the Development of Bicycle Facilities | Completed | Research in progress |
NCHRP 20-07/Task 188 | Mainstreaming Operations in State DOTs | Completed | Completed |
NCHRP 20-07/Task 189 | Advancing Strategic Highway Safety Plans: Safety Leadership Forum II | Completed | Completed |
NCHRP 20-07/Task 190 | Develop Strategy for the Testing and Evaluation of Durable Striping Materials for High Traffic Areas and Mountain Passes | Completed | Completed |
NCHRP 20-07/Task 191 | Product Evaluation and Plant Certification of HDPE Pipe | Completed | |
NCHRP 20-07/Task 192 | Update of Barrier Hardware Guide | Completed | Completed |
NCHRP 20-07/Task 193 | LRFD Guidelines for the Seismic Design of Highway Bridges, Version 2 | Completed | Completed |
NCHRP 20-07/Task 194 | Consistency of Titles for AASHTO Publications | Completed | Completed |
NCHRP 20-07/Task 195 | Development and Performance of Web Based Joint Salary Survey | Completed | The web-based survey has been developed and submitted to AASHTO for implementation. |
NCHRP 20-07/Task 196 | Development of a Guide to Crashworthy Bridge Rail Systems | Completed | Completed |
NCHRP 20-07/Task 197 | Development of a Test Method for Optical Sizing and Roundness Determination of Glass Beads Utilized in Traffic Marking | Completed | Work will be accomplished under Project 20-07 Task 243. |
NCHRP 20-07/Task 198 | Standard Practice for Independent Assurance Programs | Completed | Completed |
NCHRP 20-07/Task 199 | Update of the Strategic Plan for Bridge Engineering | Completed | Completed |
NCHRP 20-07/Task 200 | Synthesis of Vehicle Based Winter Maintenance Technologies | Completed | Completed |
NCHRP 20-07/Task 201 | Use of Warranties in Highway Construction | Completed | |
NCHRP 20-07/Task 202 | Guide to Benchmarking Operations Performance Measures | Completed | |
NCHRP 20-07/Task 203 | Update of AASHTO Maintenance Manual to Include Systems Operations and Management | Completed | Completed |
NCHRP 20-07/Task 204 | Pavement Noise Intensity Testing in Europe for Comparison to the United States | Completed | Cancelled |
NCHRP 20-07/Task 205 | Project Delivery Workforce Management Review | Completed | |
NCHRP 20-07/Task 206 | A Model Guide for Condition Assessment Systems | Completed | |
NCHRP 20-07/Task 207 | Update of the AASHTO Guide Specifications for Highway Construction | Final | Completed, See 20-07/Task 220 |
NCHRP 20-07/Task 208 | Update of Recommendations on Crest Vertical Curves | Completed | |
NCHRP 20-07/Task 209 | Incorporation of Research Findings into AASHTO's Standard Specifications for Structural Supports for Highway Signs, Luminaries and Traffic Signals | Completed | Completed |
NCHRP 20-07/Task 210 | Guidelines for the Selection of Cable Barrier Systems | Completed | |
NCHRP 20-07/Task 211 | Scoping study for an AASHTO Guide on Accelerating Project Delivery | Completed | Completed |
NCHRP 20-07/Task 212 | Development of a Model Drivers License Handbook | Completed | |
NCHRP 20-07/Task 213 | Requirements for Minimum Maintained Retroreflectivity of Pavement Marking | Completed | |
NCHRP 20-07/Task 214 | Update of A Guide to Small Sign Support Hardware | Completed | |
NCHRP 20-07/Task 215 | Statewide Incident Reporting Systems | Completed | |
NCHRP 20-07/Task 216 | Application of LRFD Bridge Design Specifications to High-Strength Structural Concrete: Final Project – Phase I | Completed | Completed |
NCHRP 20-07/Task 217 | Verification and Implementation of Strut-and-Tie Model in LRFD Bridge Design Specifications | Completed | Completed |
NCHRP 20-07/Task 218 | Performance-Based Maintenance Contracting | Final | Cancelled, refer to NCHRP Synthesis 389, Performance-Based Contracting for Maintenance |
NCHRP 20-07/Task 219 | Testing American Traffic Marking Systems on the Spanish (AETEC) Traffic Marking Wear Simulator | Completed | |
NCHRP 20-07/Task 220 | Update of the AASHTO Guide Specifications for Highway Construction | Completed | |
NCHRP 20-07/Task 221 | Traffic Incident Management + Program for Worker Safety | Completed | |
NCHRP 20-07/Task 222 | Evaluation of the Field Implementation of the Flashing Yellow Arrow Permissive Left-Turn Indication | Completed | |
NCHRP 20-07/Task 223 | Update Business Needs for Pavement Engineering | Completed | |
NCHRP 20-07/Task 224 | Update of the AASHTO Guide for Contracting, Selecting, and Managing Consultants in Preconstruction Engineering | Completed | |
NCHRP 20-07/Task 225 | Best Practices in the Management of Design Errors and Omissions | Completed | |
NCHRP 20-07/Task 226 | Review and Update of Human Factors and Operations Issues in the AASHTO Green Book | Completed | |
NCHRP 20-07/Task 227 | Technology Transfer Guidebooks for Implementation of Innovative Technologies | Completed | |
NCHRP 20-07/Task 228 | Update the United States Numbered Highways (1989 Edition) and Document Current U.S. Routes | Completed | The revised final products have been accepted and provided to AASHTO. |
NCHRP 20-07/Task 229 | Bridge Construction Practices Using Incremental Launching | Completed | |
NCHRP 20-07/Task 230 | Safety and Security in Roadway Tunnels | Completed | |
NCHRP 20-07/Task 231 | Laboratory Testing of Proposed Roundabout Traffic Control Options | Completed | |
NCHRP 20-07/Task 232 | Development of a Guide to Update ADA Transition Plans | Completed | |
NCHRP 20-07/Task 233 | Development of a Toolkit to Assist State DOTs and Contractors in Uniformly Handling DBE requirements | Completed | The project is completed and the final products delivered to AASHTO. |
NCHRP 20-07/Task 234 | Guidelines for Selection of Bridge Deck Overlays, Sealers, and Treatments | Completed | |
NCHRP 20-07/Task 235 | Development of Testing Protocols for Surface Applied Concrete Sealers Treatments | Completed | |
NCHRP 20-07/Task 236 | Modification and Stabilization of Soils and Base for Use in Pavement Structures | Completed | The project final report is available as NCHRP Web Only Documents 144 and 145. |
NCHRP 20-07/Task 237 | Incorporation of Lane Management and Toll Plaza Design Issues in the AASHTO Green Book | Final | |
NCHRP 20-07/Task 238 | Conceptual Development of an AASHTO Guide to Systems Operations and Management | Completed | |
NCHRP 20-07/Task 239 | Identification and Delineation of Incident Management and Multi-Agency Emergency Response Functions | Final | Combined with another NCHRP Project |
NCHRP 20-07/Task 240 | Update of AASHTO Roadside Design Guide | Completed | |
NCHRP 20-07/Task 241 | Capacity Creation Through Innovative Design | Final | Cancelled |
NCHRP 20-07/Task 242 | Cost Analysis of Rehabilitation/Reconstruction of the Nation's Highway Infrastructure | Final | |
NCHRP 20-07/Task 243 | Development of a Test Method for Optical Sizing and Roundness Determination of Glass Beads Utilized in Traffic Markings | Completed | The project final report has been published as NCHRP Research Results Digest 346 and NCHRP Web-Only Document 156. |
NCHRP 20-07/Task 244 | Modifications for AASHTO LRFD Bridge Design Specifications to Incorporate or Update the Guide Specifications for Design of Pedestrian Bridges | Final | |
NCHRP 20-07/Task 245 | Updating AASHTO Design and Construction Specifications ffor Temporary Works used in Bridge Construction | Completed | The final report has been provided to AASHTO. |
NCHRP 20-07/Task 246 | Replacement Process for LED (Light Emitting Diode) Traffic Signals | Completed | Published |
NCHRP 20-07/Task 247 | Outdoor Advertising Sign Regulation Study | Completed | Completed final report submitted to AASHTO |
NCHRP 20-07/Task 248 | Guidelines for Utility Encasement Policy for Highway Crossings | Completed | Completed final report submitted to AASHTO |
NCHRP 20-07/Task 249 | Asset Management Approaches to ADA Compliance | Completed | |
NCHRP 20-07/Task 250 | Update AASHTO ''Guide for Snow and Ice Control'' | Completed | |
NCHRP 20-07/Task 251 | Consideration of Pavement Preservation in the AASHTO Mechanistic-Empirical Pavement Design Guide | Completed | |
NCHRP 20-07/Task 252 | Guidelines for Implementing Quality Control and Quality Assurance for Bridge Inspection | Final | |
NCHRP 20-07/Task 253 | Subcommittee on Systems Operations and Management Strategic Plan Update | Completed | |
NCHRP 20-07/Task 254 | Vehicle Size and Weight Management (VSW) Technology Transfer/Best Practices | Final | |
NCHRP 20-07/Task 255 | Development of a Test Method To Determine the Ability of Adhesive Anchors To Resist Sustained Tensile Load | Completed | The project final report is available as NCHRP Report 639. |
NCHRP 20-07/Task 256 | Safety Impacts of the Emerging Digital Display Technology for Outdoor Advertising Signs | Completed | |
NCHRP 20-07/Task 257 | Crash Tested Precast Concrete Barrier Designs and Anchoring Methods | Completed | |
NCHRP 20-07/Task 258 | Identification of Cross-Cutting Issues Related to the Development, Management, and Delivery of Transportation Projects and Programs | Final | The final report has been submitted to AASHTO. |
NCHRP 20-07/Task 259 | Assessment of State-of-the-Practice for Identifying Earth Retaining Structure (ERS) | Final | |
NCHRP 20-07/Task 260 | Development of Guidelines for Conducting Effective Customer Surveys Related to Highway Maintenance Operations | Completed | The project has been completed and the final report submitted to AASHTO |
NCHRP 20-07/Task 261 | Best Practices for Implementing Quality Control and Quality Assurance for Tunnel Inspection | Final | |
NCHRP 20-07/Task 262 | Review and Update of the AASHTO Guide Specifications for Seismic Isolation Design | Final | |
NCHRP 20-07/Task 263 | Update of the AASHTO Guide for the Planning, Design, and Operation of Pedestrian Facilities | Completed | The final report has been accepted and forwarded to AASHTO. |
NCHRP 20-07/Task 264 | Guidance for Design and Selection of Pipes | Completed | Completed final report submitted to AASHTO. |
NCHRP 20-07/Task 265 | Electronic Publications Delivery System: AASHTO’s Next Step | Completed | The project has been completed and the final report submitted to AASHTO |
NCHRP 20-07/Task 266 | Development of an Alternative Calibration Method for AASHTO T 153 | Completed | |
NCHRP 20-07/Task 267 | Potential for Saving Lives with Various Countermeasures to Meet AASHTO’s New Safety Goal | Completed | |
NCHRP 20-07/Task 268 | SCOM Strategic Planning Workshop | Completed | |
NCHRP 20-07/Task 269 | Feasibility of Using Incentives to Facilitate Utility Relocations | Completed | Completed final report submitted to AASHTO |
NCHRP 20-07/Task 270 | Application of AASHTO LRFD Specifications to Design of Sound Barriers | Final | |
NCHRP 20-07/Task 271 | Graphical Traffic Signal Design Aid Based on the MUTCD | Completed | |
NCHRP 20-07/Task 272 | Rheological Characterization of Flow Table Reference Material | Completed | |
NCHRP 20-07/Task 273 | Update of the AASHTO Policy on Geometric Design of Highways and Streets (Green Book) | Completed | |
NCHRP 20-07/Task 274 | Price Indexing in Transportation Construction Contracts | Completed | |
NCHRP 20-07/Task 275 | SCOH Strategic Plan Support | Completed | Completed |
NCHRP 20-07/Task 276 | Development of Guidelines for Rehabilitation of Existing highway and Rail Transit Tunnels | Final | |
NCHRP 20-07/Task 277 | Update to AASHTO 'Pavement Management Guide' | Completed | |
NCHRP 20-07/Task 278 | Production of the new AASHTO Guide to Estimating | Completed | |
NCHRP 20-07/Task 279 | Development of a Work Plan for the 2nd Edition of the Highway Safety Manual | Completed | |
NCHRP 20-07/Task 280 | AASHTO MATERIALS “C” SPECIFICATIONS | Completed | AASHTO HSCOM has received the project deliverables. |
NCHRP 20-07/Task 281 | Strategic Plan for the Development and Maintenance of AASHTO Standards by AASHTO Member Departments | Completed | |
NCHRP 20-07/Task 282 | Research Needs Assessment for Roadside Workers and Vehicle Safety | Completed | |
NCHRP 20-07/Task 283 | Evaluation of the Flashing Yellow Arrow (FYA) Permissive Left Turn in Shared Yellow Signal Sections | Final | |
NCHRP 20-07/Task 284 | Establish Test Methods for 100-Year Service Life for HDPE Thermoplastic Pipe in the AASHTO LRFD Bridge Design Specifications | Final | Canceled. Related research conducted under NCHRP Project 10-86 |
NCHRP 20-07/Task 285 | Recalibration of the LRFR Load Factors in the AASHTO Manual for Bridge Evaluation | Final | |
NCHRP 20-07/Task 286 | Finalization of a new AASHTO Drainage Manual - Volume 1, Policy; Volume 2, Procedures | Completed | Completed final report submitted to AASHTO for publishing. |
NCHRP 20-07/Task 287 | Roadmap for Winter Maintenance Research | Completed | |
NCHRP 20-07/Task 288 | National Calibration of MEPDG Rigid Pavement Models Based on Corrected CTE Values | Completed | |
NCHRP 20-07/Task 289 | Comparative Performance Evaluation of Pavement Marking Materials at the NTPEP Test Facility | Completed | |
NCHRP 20-07/Task 290 | Highway Safety Training Synthesis/Roadmap | Completed | |
NCHRP 20-07/Task 291 | Transportation Operations Research Communications, Awareness Needs Assessment & Implementation Plan for State DOTs | Final | |
NCHRP 20-07/Task 292 | SCOH Strategic Plan: Completion, implementation planning, and governance | Completed | |
NCHRP 20-07/Task 294 | Continuation of Funding of 20-07 Task 245 - Update Bridge Temporary Works | Final | |
NCHRP 20-07/Task 295 | Survey of Existing XML Schemas for Incorporation into TransXML | Completed | |
NCHRP 20-07/Task 296 | Alignment of the Draft AASHTO Transit Guide with the AASHTO Green Book | Final | |
NCHRP 20-07/Task 297 | Analysis of usRAP | Completed | |
NCHRP 20-07/Task 298 | Operations Center of Excellence | Final | |
NCHRP 20-07/Task 299 | Resolution of Comments on the Draft AASHTO Bike Guide | Completed | The final report has been provided to AASHTO for final balloting. |
NCHRP 20-07/Task 300 | Methods for Estimating the Benefits for Winter Maintenance Operations | Completed | |
NCHRP 20-07/Task 301 | Measuring Cement Particle Size and Surface Area by Laser Diffraction | Completed | The project final report is available as NCHRP Research Results Digest 382. |
NCHRP 20-07/Task 302 | Value Analysis for Linear Referencing Systems | Final | Final report submitted to AASHTO TIG |
NCHRP 20-07/Task 303 | Synthesis of Truck Size and Weight Research | Final | |
NCHRP 20-07/Task 304 | AASHTO Publications - Future Road Map | Final | The project is canceled |
NCHRP 20-07/Task 305 | Analysis of New Highway Lighting Technologies | Final | |
NCHRP 20-07/Task 306 | Revision of Strut-and-Tie Provisions in the AASHTO LRFD Bridge Design Specifications | Final | |
NCHRP 20-07/Task 307 | Updated Research for Collision Damage and Repair of Prestessed Concrete Beams | Final | |
NCHRP 20-07/Task 308 | Completion of the new AASHTO A Practical Guide to Estimating, Part 2 | Final | NCHRP Proejct 20-07/Task 278 has been expanded in scope and budget to include this project |
NCHRP 20-07/Task 309 | Challenges and Opportunities: A Strategic Plan for Equipment Management Research | Completed | |
NCHRP 20-07/Task 310 | Determination of Current Levels of Retroreflectance Attained and Maintained by the State Departments of Transportation | Completed | |
NCHRP 20-07/Task 311 | Development of a Warm Mix Asphalt Technology Evaluation Program | Completed | |
NCHRP 20-07/Task 312 | Successful Practices for Automating Utility Permits | Final | |
NCHRP 20-07/Task 313 | Safety Checklists and Design Guidelines for Evaluation of Outdoor Advertising Signs and Permit Locations by Departments of Transportation (DOTs) | Final | The project is canceled |
NCHRP 20-07/Task 314 | Recommended Protocol for Developing Crash Modification Factors | Completed | |
NCHRP 20-07/Task 315 | Transportation Asset Management for Ancillary Structures | Completed | |
NCHRP 20-07/Task 316 | Establishment of Appropriate Guidelines for Use of the Direct and Indirect Design Methods for Reinforced Concrete Pipe | Final | |
NCHRP 20-07/Task 317 | Update of AASHTO Publication MEPDG-1 | Completed | |
NCHRP 20-07/Task 318 | Revised Chapter 8, Winter Maintenance Operations and Salt, Sand, and Chemical Management, of the Final Report on NCHRP Project 25-25(04) | Completed | |
NCHRP 20-07/Task 319 | Evaluating Applicability of the Dual-Ring Test Procedure for Assessing the Cracking Tendency of Repair Materials | Completed | |
NCHRP 20-07/Task 320 | Advanced GIS Visualization Techniques for Geospatial Business Intelligence and Information Integration | Final | |
NCHRP 20-07/Task 321 | Developing a Framework for Emergency Responder/Roadside Worker Struck-by/Near-miss Database | Completed | |
NCHRP 20-07/Task 322 | State of Readiness of the Dedicated Short Range Communications (DSRC) Spectrum for Early deployment of Connected Vehicle Transportation Systems | Final | Combined with another NCHRP Project 03-101 |
NCHRP 20-07/Task 323 | Developing a Long-Range Strategic Plan for the MUTCD | Final | |
NCHRP 20-07/Task 324 | NCHRP's Role in Maintaining AASHTO Guidelines and Specifications | Completed | Recommendations provided to AASHTO SCOR and SCOH |
NCHRP 20-07/Task 325 | Updating the AASHTO LRFD Wind Loads Provisions | Final | |
NCHRP 20-07/Task 326 | Review and Update of the AASHTO Movable Bridge Inspection, Evaluation and Maintenance Manual, 1st Edition - Scoping Study | Final | Project is canceled, and the allocated funds will supplement NCHRP Project 14-32 |
NCHRP 20-07/Task 327 | Developing Recalibrated Concrete Pavement Performance Models for the Mechanistic-Empirical Pavement Design | Completed | |
NCHRP 20-07/Task 328 | Update of the 1995 AASHTO/AGC/ARTBA ‘A Guide to Standardized Highway Barrier Hardware’ (1995 Guide) | Completed | Final report submitted to AASHTO SCOE |
NCHRP 20-07/Task 329 | Alternative Delivery Methods for Winter Operations | Completed | |
NCHRP 20-07/Task 330 | Waterproofing of Bridge Decks Using Pavement Preservation Products | Anticipated | Project cancelled. |
NCHRP 20-07/Task 331 | Report On the Methods and Standards to Measure the Permeability of Concrete | Completed | |
NCHRP 20-07/Task 332 | User’s Guide to Develop Highway Safety Manual Safety Performance Function Calibration Factors | Completed | |
NCHRP 20-07/Task 333 | Comparing the Corrosion Protection of Hot Dip Versus Continuously Galvanized W-Beam Guardrail Sections | Completed | |
NCHRP 20-07/Task 334 | Primer on the Joint Use of the HSM and HFG | Final | |
NCHRP 20-07/Task 335 | Updating the Strategic Plan for the AASHTO Highway Subcommittee on Bridges and Structures | Final | |
NCHRP 20-07/Task 336 | Emergency Exit Signs Within Highway Tunnels | Final | Project is canceled, and the allocated funds will supplement NCHRP Project 20-59 (47) |
NCHRP 20-07/Task 337 | Proposed AASHTO Guidelines for Complex Bridge Inspection | Final | |
NCHRP 20-07/Task 338 | Hydrology for Water Quality Analysis and Design | Completed | |
NCHRP 20-07/Task 339 | Best Practices for Cracking Sealing and Crack Filling of Asphalt Pavements | Completed | |
NCHRP 20-07/Task 340 | National Training: Challenges and Opportunities | Completed | |
NCHRP 20-07/Task 341 | Guidelines for the Development HSM Part C Predictive Methods Chapters | Final | NCHRP Project 17-71 has been expanded in scope and budget to include this project |
NCHRP 20-07/Task 342 | Wind Turbulence-Structure Interaction and Aeroelastic Instability for Long-Span Flexible Girder Systems | Final | NCHRP Project 20-07/Task 325 has been expanded in scope and budget to include this project |
NCHRP 20-07/Task 343 | An Update to AASHTO’s Guidelines for Geometric Design of Very Low-Volume Local Roads | Final | NCHRP Proejct 15-47 has been expanded in scope and budget to include this project |
NCHRP 20-07/Task 344 | Practical Cost Estimating: Development of Training | Final | |
NCHRP 20-07/Task 345 | Planning for Transportation System Management & Operations | Final | |
NCHRP 20-07/Task 346 | Completion of the Update to the AASHTO Guide for Transportation Landscape and Environmental Design | Final | |
NCHRP 20-07/Task 347 | Test Methods of Watertightness of Culvert Joints | Final | |
NCHRP 20-07/Task 348 | Review of the AASHTO LRFD Movable Highway Bridge Design Specifications for future updates | Final | |
NCHRP 20-07/Task 349 | Guidelines for Developing Materials Acceptance Plans for Alternative Contracting Methods | Completed | |
NCHRP 20-07/Task 350 | U.S. Bicycle Route Guide Signing | Final | |
NCHRP 20-07/Task 351 | Update to AASHTO’s Visualization in Transportation: A Guide for Transportation Agencies | Final | Completed. |
NCHRP 20-07/Task 352 | Next Generation AASHTO Transportation System Management & Operations Strategic Direction | Final | |
NCHRP 20-07/Task 353 | Development of a Strategic Research Plan for SCOHTS | Final | |
NCHRP 20-07/Task 354 | Work Zone Speed Limits and Crash Data Practices | Final | |
NCHRP 20-07/Task 355 | Guidelines for Reliable Fit-Up of Steel I-Girder Bridges | Final | |
NCHRP 20-07/Task 356 | Strategic Plan for Prioritization and Selection of Research Proposals for Hydrology and Hydraulics | Final | |
NCHRP 20-07/Task 357 | Guidelines for Collecting, Processing, and Managing Roadway Asset Inventory Data | Completed | |
NCHRP 20-07/Task 358 | Reducing Risks to Worker Safety in Work Zones Due to Distracted Drivers | Final | |
NCHRP 20-07/Task 359 | Next Generation National Transportation System Management & Operations (TSM&O) Research Framework | Final | |
NCHRP 20-07/Task 360 | Development of a Strategic Plan for the Technical Committee on Roadside Safety (TCRS) | Final | |
NCHRP 20-07/Task 361 | Hamburg Wheel-Track Test Equipment Requirements and Improvements to AASHTO T 324 | Completed | |
NCHRP 20-07/Task 362 | Quantifying the Costs and Benefits of Partnering on Projects Delivered Using Traditional and Alternative Contracting Methods | Final | |
NCHRP 20-07/Task 363 | Guidelines for Emergency Ventilation Smoke Control in Roadway Tunnels | Final | |
NCHRP 20-07/Task 364 | Revision of AASHTO PP-74 Test Method for Optical Sizing and Roundness Determination of Glass Beads Utilized in Traffic Markings | Completed | |
NCHRP 20-07/Task 365 | Strategic Transportation Systems Management & Operations Program Planning Lead States Initiative Development & Evaluation | Completed | |
NCHRP 20-07/Task 366 | Accessing Information about Transportation Systems Management and Operations Performance Measurement | Final | |
NCHRP 20-07/Task 367 | Analysis of Crash Contributing Factors to Determine Appropriate Countermeasures | Anticipated | |
NCHRP 20-07/Task 368 | Development of a Roadmap for Use of SHRP2 Safety Data to Enhance Existing Publications | Final | |
NCHRP 20-07/Task 369 | Update of SCOH Strategic Plan | Final | The project is canceled |
NCHRP 20-07/Task 370 | Development of a Strategic Plan for the Subcommittee on Traffic Engineering (SCOTE) | Final | |
NCHRP 20-07/Task 371 | DOT Technical Assistance in Using the HFG | Final | The project is canceled |
NCHRP 20-07/Task 372 | Evaluation of MASH Test Vehicles | Final | |
NCHRP 20-07/Task 373 | Utility Coordination Best Practices for Design-Build and Alternative Contracting Projects | Final | Completed. |
NCHRP 20-07/Task 374 | Guidelines for Selecting Sign Sheeting Materials for AASHTO M268 | Final | |
NCHRP 20-07/Task 375 | Improvements to the Dry Back Procedure of AASHTO T 209 | Completed | |
NCHRP 20-07/Task 376 | Transportation Agency ITS Infrastructure Decisions Considering V2I Deployment | Completed | |
NCHRP 20-07/Task 377 | Standardized Format for Bridge and Structure Information Models | Final | |
NCHRP 20-07/Task 378 | Assessing Risk for Bridge Management | Final | |
NCHRP 20-07/Task 379 | AASHTO Highway Subcommittee on Maintenance Strategic Plan Update | Completed | |
NCHRP 20-07/Task 380 | Proposed AASHTO Manual for the Maintenance of Roadways and Bridges | Final | |
NCHRP 20-07/Task 381 | Rating Concrete Permeability Based on Resistivity Measurements | Final | NCHRP Project 18-19 has been expanded in scope and budget to include this project |
NCHRP 20-07/Task 382 | Longer Pavement Life from Increased In-Place Density of Asphalt Pavements | Completed | |
NCHRP 20-07/Task 383 | Review and update of the AASHTO Roadside Design Guide | Final | |
NCHRP 20-07/Task 384 | Core Competencies for Key Safety Analyses | Final | |
NCHRP 20-07/Task 385 | Traffic Incident Management Technical Advisory Group (TIMTAG) Business Plan | Final | |
NCHRP 20-07/Task 386 | Update to AASHTO “Guide Specifications for Highway Construction” | Completed | |
NCHRP 20-07/Task 387 | Maintenance Actions to Address Fatigue Cracking in Steel Bridge Structures | Final | |
NCHRP 20-07/Task 388 | Guidelines for Design and Construction of Temporary Bridges | Final | |
NCHRP 20-07/Task 389 | Implications of State Departments of Transportation (DOTs) Participation in the One Call Process as an Underground Facility Operator | Completed | Completed |
NCHRP 20-07/Task 390 | Parametric Study & Cost Effects for the USDOT Truck Size & Weight Study Vehicles | Final | |
NCHRP 20-07/Task 391 | Energy Criteria for Maintaining Fully Animated Particles of Loose Asphalt in AASHTO T 209 Testing | Completed | |
NCHRP 20-07/Task 392 | Plan for an AASHTO Operations Guide | Final | |
NCHRP 20-07/Task 393 | Motor Vehicle Safety Countermeasures: Impacts on Pedestrian and Bicyclist Safety | Final | |
NCHRP 20-07/Task 394 | Development of Performance-Based Geometric Design Content for the Next Edition of the AASHTO Green Book | Final | |
NCHRP 20-07/Task 395 | MASH Equivalency of NCHRP 350-Approved Bridge Railings | Final | |
NCHRP 20-07/Task 396 | Updating the AASHTO Seismic Hazard Maps and Site Coefficients | Final | NCHRP Project 12-106 has been expanded in scope and budget to include this project |
NCHRP 20-07/Task 397 | Characteristics of Decommissioned Bridges | Final | |
NCHRP 20-07/Task 398 | Development of Performance-Based Geometric Design Content for the Next Edition of the AASHTO Green Book | Final | |
NCHRP 20-07/Task 399 | Identifying Bridge Maintenance and Preservation Activities which Minimize Environmental Impact | Final | |
NCHRP 20-07/Task 400 | Effect of Elevation on Rolling Thin Film Oven Aging of Asphalt Binders | Completed | |
NCHRP 20-07/Task 401 | Addressing Roadside Safety: A Systemic Approach to Hardware Replacement Analysis to Support MASH Implementation | Final | |
NCHRP 20-07/Task 402 | Proposed Modification to AASHTO LRFD Reinforced Concrete Interface Shear Design and Detailing | Final | The project is Canceled |
NCHRP 20-07/Task 403 | Develop Detailed Elements for Movable Bridge Inspection and Management | Final | The project is canceled |
NCHRP 20-07/Task 404 | Reevaluation of the Side Friction Values used to Determine Horizontal Curve Radii Using Crash Data | Final | The project is canceled |
NCHRP 20-07/Task 405 | Reevaluation of the Perception and Reaction Time and Deceleration Rates for Stopping | Final | The project is canceled |
NCHRP 20-07/Task 406 | Development of a Framework for Balanced Asphalt Mixture Design | Completed | |
NCHRP 20-07/Task 407 | Utility Coordination Efficiency, Safety, Cost, and Schedule Impacts using various Contracting Methods | Final | Final |
NCHRP 20-07/Task 408 | Transportation System Management and Operations (TSMO) Workforce: Skills, Positions, Recruitment, Retention, and Career Development | Final | |
NCHRP 20-07/Task 409 | ITS Communications Integration Needs for Legacy and Emerging Programs Including | Final | The project is canceled |
NCHRP 20-07/Task 410 | Load Rating for the Fast Act Emergency Vehicles Ev-2 and Ev-3 | Final | |
NCHRP 20-07/Task 411 | Review and Update of AASHTO Standard Practice R 87 | Completed | |
NCHRP 20-07/Task 412 | Adjustments to the Superpave Volumetric Mixture Design Procedure for Selecting Optimum Asphalt Content | Completed | |
NCHRP 20-07/Task 413 | Relocation and Acquisition of Outdoor Advertising Signs Impacted by State Highway Projects: Time and Cost Comparison | Final | |
NCHRP 20-07/Task 414 | Benefits of Adaptive Traffic Control Deployments -- A Review of Evaluation Studies | Final | Final Report and (AT)2C tool available for download. |
NCHRP 20-07/Task 415 | Proposed AASHTO Guidelines for Bottom Flange Limits of Steel Box Girders | Final | |
NCHRP 20-07/Task 416 | Alternative Technologies for Mitigating the Risk of Injuries and Deaths in Work Zones | Final | |
NCHRP 20-07/Task 417 | Reorganization and Strategy to Update the AASHTO Drainage Manual | Completed | |
NCHRP 20-07/Task 418 | An Impact and Value Analysis of Requiring Geo-spatial Locations for Utility Installation As-builts | Final | Final contractor's report is available for download. |
NCHRP 20-07/Task 419 | Accommodation of Small Cell Sites within Public Rights-of-Way (ROW) | Final | |
NCHRP 20-07/Task 420 | Road User Understanding of Bicycle Signal Symbol Indications | Final | |
NCHRP 20-07/Task 421 | Review and Update of AASHTO Standard Methods of Test T27 and T30 | Final | |
NCHRP 20-07/Task 422 | User Review of the AASHTO Guide for Local Calibration of the MEPDG | Completed | |
NCHRP 20-07/Task 423 | Planning for a Comprehensive Update and Restructuring of AASHTO’s A Policy on Geometric Design of Highways and Streets (8th Edition) | Final | |
NCHRP 20-07/Task 424 | AASHTO Guidelines for the Operation of Movable Bridges from Remote Locations | Final | |
NCHRP 20-07/Task 425 | Emerging LED Technologies and Use within Tunnels | Final | |
NCHRP 20-07/Task 426 | Challenges and Opportunities: A Strategic Plan for Equipment Management Research | Completed | |
NCHRP 20-07/Task 427 | Developing a Recommended AASHTO Standard Practice for Selection of Temperature-Measuring Devices | Completed | |
NCHRP 20-07/Task 428 | Update of the 2012 AASHTO Guide Specification for Design of Bonded FRP Systems for Repair and Strengthening of Concrete Bridge Elements | Completed | |
NCHRP 20-100 | Return on Investment in Transportation Asset Management Systems and Practices | Final | |
NCHRP 20-101 | Guidelines to Incorporate the Costs and Benefits of Adaptation Measures in Preparation for Extreme Weather Events and Climate Change | Completed | |
NCHRP 20-102 | Impacts of Connected Vehicles and Automated Vehicles on State and Local Transportation Agencies--Task-Order Support | Active | |
NCHRP 20-102(01) | Policy and Planning Actions to Internalize Societal Impacts of CV and AV Systems into Market Decisions | Final | |
NCHRP 20-102(02) | Impacts of Regulations and Policies on CV and AV Technology Introduction in Transit Operations | Final | Published as Web-Only Document 239 |
NCHRP 20-102(03) | Challenges to CV and AV Application in Truck Freight Operations | Final | Published as Web-Only Document 231 |
NCHRP 20-102(04) | Evaluation Guidance for Automated Vehicle Pilot and Demonstration Projects | Final | |
NCHRP 20-102(05) | Strategic Communications Plan for NCHRP Project 20-102 | Final | Canceled as the research objective is part of the NCHRP communication plan efforts |
NCHRP 20-102(06) | Road Markings for Machine Vision | Final | |
NCHRP 20-102(07) | Implications of Automation for Motor Vehicle Codes | Final | |
NCHRP 20-102(08) | Dedicating Lanes for Priority or Exclusive Use by CVs and AVs | Final | |
NCHRP 20-102(09) | Updating Regional Transportation Planning and Modeling Tools to Address Impacts of Connected and Automated Vehicles | Final | |
NCHRP 20-102(10) | Cybersecurity Implications of CV/AV Technologies on State and Local Transportation Agencies | Final | This project is incorporated into NCHRP Project 03-127 |
NCHRP 20-102(11) | Mobility-on-Demand and Automated Driving Systems: A Framework for Public-Sector Assessment | Completed | Publication pending as NCHRP Research Report 1009 and NCHRP Web-Only Document 331; publication expected Fall 2022. |
NCHRP 20-102(12) | Business Models to Facilitate Deployment of CV Infrastructure to Support AV Operations | Final | Research Report is available as NCHRP Web-Only Document 289 |
NCHRP 20-102(13) | Planning Data Needs and Collection Techniques for CV/AV Applications | Final | NCHRP Project 08-119 has been expanded in scope and budget to include this project |
NCHRP 20-102(14) | Data Management Strategies for CV/AV Applications for Operations | Final | NCHRP Project 08-119 has been expanded in scope and budget to include this project |
NCHRP 20-102(15) | Impacts of Connected and Automated Vehicle Technologies on the Highway Infrastructure | Final | |
NCHRP 20-102(16) | Impacts of Connected, Automated Vehicle Technologies on Traffic Incident Management Response | Completed | |
NCHRP 20-102(17) | Deployment Guidance for CV Applications in the Open Source Application Development Portal | Final | Project Cancelled |
NCHRP 20-102(18) | Minimum Safety Data Needed for Automated Vehicle Operations and Crash Analysis | Final | NCHRP 17-91 has been expanded in scope and budget to include this project |
NCHRP 20-102(19) | Update AASHTO’s Connected Vehicle/Automated Vehicle Research Roadmap | Final | NCHRP 20-102(19)B will update this project |
NCHRP 20-102(19)B | Updated Research Roadmap for NCHRP 20-102, Impacts of Connected Vehicles and Automated Vehicles on State and Local Transportation Agencies | Final | |
NCHRP 20-102(20) | Preparing the Transportation Workforce for the Deployment of Emerging Technology | Active | |
NCHRP 20-102(21) | Infrastructure Modifications to improve the Operational Domain of Automated Vehicles | Final | The scope of this task is combined with NCHRP 20-102(24). |
NCHRP 20-102(22) | State and Local Impacts of Automated Freight Transportation Systems | Final | |
NCHRP 20-102(23) | Potential Impacts of Highly Automated Vehicles and Shared Mobility on Traveler Behavior | Final | TCRP B-47 has been expanded in scope and budget to include this project |
NCHRP 20-102(24) | Infrastructure Modifications to Improve the Operational Conditions of Automated Vehicles | Active | Research in progress. |
NCHRP 20-102(25) | Readiness and Effectiveness of Freeway-Based Corridor V2X Applications for Improving Congestion and Safety | Final | Project Cancelled |
NCHRP 20-102(26) | Dynamic Curbside Management: Keeping Pace with New and Emerging Mobility and Technology in the Public Right of Way | Final | |
NCHRP 20-102(27) | Realistic Timing Estimates for Automated Vehicle Implementation | Final | Final report published as NCHRP Research Report 1049. |
NCHRP 20-102(28) | Preparing Transportation Agencies for Connected and Automated Vehicles in Work Zones | Final | |
NCHRP 20-102(29) | Incorporating New Mobility Options into Travel Demand Forecasting and Modeling | Final | |
NCHRP 20-102(30) | Equity Impacts of Shared AVs on Transportation Disadvantaged Communities | Final | TCRP B-47 has been expanded in scope and budget to include this project |
NCHRP 20-102(31) | Unintended Consequences of AVs on Infrastructure Owner-Operators | Final | NCHRP Project 23-15 has been expanded in scope and budget to include this project. |
NCHRP 20-102(32) | Safety Implications in a Mixed Vehicle Environment | Final | NCHRP 17-91 and BTSCRP BTS-07 have been expanded in scope and budget to include this project |
NCHRP 20-102(33) | A Guide to Enhancing the Safety of Vulnerable Road Users in a CAV Future | Completed | Cancelled |
NCHRP 20-102(34) | Toolbox for Navigating the Land-Use Impacts of the Automated Vehicle Ecosystem | Completed | Final deliverables pending |
NCHRP 20-102(35) | C/AV Applications for IOO Fleets | Final | NCHRP 14-42 has been expanded in scope and budget to include this project |
NCHRP 20-103 | Guidance for Development and Management of Sustainable Information Portals | Final | |
NCHRP 20-104 | Capturing and Learning Essential Consultant-Developed Knowledge within Departments of Transportation | Final | |
NCHRP 20-105 | Development of Course Outlines for Ahead of the Curve Training Program: Mastering the Management of Transportation Research | Completed | |
NCHRP 20-105B | Development of Course Outlines for Ahead of the Curve Training Program: Mastering the Management of Transportation Research | Final | |
NCHRP 20-106 | Framing Surface Transportation Research for the Nation's Future | Final | |
NCHRP 20-107 | Effective Construction Project Staffing Strategies for Transportation Agencies | Final | Published as NCHRP Research Report 923.. |
NCHRP 20-108 | Guide to Sustaining a Culture of Innovation within Departments of Transportation | Final | |
NCHRP 20-109 | Enhancement of the Transportation Research Thesaurus | Final | Published as NCHRP Research Report 874: The Transportation Research Thesaurus: Capabilities and Enhancements |
NCHRP 20-110 | A Guide to Ensure Access to the Publications and Data of Federally Funded Transportation-Related Research | Completed | |
NCHRP 20-111G | Best Practices for State DOT Research Program Peer Exchanges | Final | |
NCHRP 20-111J | Successful Practices for State Transportation Research Office's Complying with 2 CFR 200 | Final | Complete. Final report posted. |
NCHRP 20-112 | A Research Roadmap for Transportation and Public Health | Final | |
NCHRP 20-113 | Research Roadmap -- Transformational Technologies (other than CV/AV) | Final | |
NCHRP 20-113A | Support for TRB Symposium on Transformational Technologies Affecting Transportation | Final | |
NCHRP 20-113F | Topical White Papers for the TRB Forum on Automated Vehicles and Shared Mobility | Final | |
NCHRP 20-114 | Multimodal Freight Transportation Research Roadmap | Final | Submitted to the AASHTO Special Committee on Freight |
NCHRP 20-116 | An Emergency Management Playbook for State Transportation Agencies | Final | |
NCHRP 20-117 | Deploying Transportation Resilience Practices in State DOTs | Final | |
NCHRP 20-118 | Benchmarking and Comparative Measurement for Effective Performance Management by Transportation Agencies | Final | |
NCHRP 20-119 | Evaluating the Suitability of Roadway Corridors for Use by Monarch Butterflies | Completed | A pre-publication of the final report is available at http://www.trb.org/main/blurbs/180186.aspx. |
NCHRP 20-120 | Next Generation Transportation Pooled Fund (TPF) Website | Active | |
NCHRP 20-121 | State DOT Contributions to the Study, Investigation, and Interdiction of Human Trafficking | Final | Phase II will be conducted under NCHRP 20-121A |
NCHRP 20-121A | Countering Human Trafficking: A Toolkit for State DOTs | Active | Research in progress |
NCHRP 20-122 | Rural Transportation Issues: Research Roadmap | Final | |
NCHRP 20-123 | Support for AASHTO Committees and Councils | Active | Individual task hyperlinks available below. |
NCHRP 20-123(01) | Transportation Asset Management Strategic Planning and Research Roadmap Development | Final | Final products may be found on https://onlinepubs.trb.org |
NCHRP 20-123(02) | Research Roadmap for the AASHTO Council on Active Transportation | Final | |
NCHRP 20-123(03) | Staying Nimble: Organizational Development for the Cutting Edge | Final | Combined with NCHRP 20-44( 11) |
NCHRP 20-123(04) | Development of a Risk Management Strategic Plan and a Research Roadmap | Final | |
NCHRP 20-123(05) | Support for Review of the Manual on Uniform Traffic Control Devices (MUTCD) Notice of Proposed Amendments (NPA) | Final | This project was canceled |
NCHRP 20-123(06) | Merging and Updating AASHTO Policy on the Accommodation of Utilities within Freeway Right-of-Way and AASHTO Guide for Accommodating Utilities within Highway Right-of-Way | Final | |
NCHRP 20-123(07) | Update proposed Manual for the Maintenance of Roadways and Bridges | Final | |
NCHRP 20-123(08) | Scoping Study to Update User and Non-User Benefit Analysis for Highways | Active | |
NCHRP 20-123(09) | Feasibility Study for a Platform to Capture Innovations from State Departments of Transportation | Final | |
NCHRP 20-123(10) | AASHTO Committee on Bridges and Structures Strategic Plan, Operating Guidelines, and Research Roadmap Development | Final | The final deliverables have been forwarded to AAHSTO COBS for their use. |
NCHRP 20-123(11) | High-Value Research Marketing and Communications for 2020 | Final | |
NCHRP 20-123(12) | System Mobility and Emerging Technologies (SMET): Strategic Planning Session and Research Roadmap Development | Final | Final deliverables have been shared with AASHTO for use by the SMET Subcommittee. |
NCHRP 20-123(13) | Strategic Plan and Research Roadmap for the AASHTO Committee on Planning | Final | Final Strategic Plan and Research Roadmap has been delivered to the AASHTO Committee on Planning |
NCHRP 20-123(14) | Scoping Study for the Development of a Platform for State DOT and AASHTO Committee Surveys | Final | |
NCHRP 20-123(15) | Support for AASHTO Approval of the Transportation Operations Manual | Final | This project was combined with NCHRP Project 03-126 |
NCHRP 20-123(16) | Roadmap for the Transformation to Computer Simulation-Based Assessment of Bridge Railings | Final | This project has been replaced with NCHRP 20-123(16)A |
NCHRP 20-123(16)A | Roadmap for the Transformation to Computer Simulation-Based Assessment of Bridge Railings | Active | Research In Progress |
NCHRP 20-123(17) | Highway Safety Manual Development and Roadmap | Active | Research underway |
NCHRP 20-123(18) | Development of a New Transportation System Operations Strategic Plan | Active | |
NCHRP 20-123(19) | A Research Roadmap for Institutionalizing Transportation Equity | Active | Research is progress. |
NCHRP 20-123(20) | Roadmap to Update Bridge Deck Design Requirements | Active | Research In Progress |
NCHRP 20-123(21) | Roadmap to Update Bridge Evaluation | Pending | |
NCHRP 20-123(22) | Development of Modern Active Transportation Research Roadmap | RFP | |
NCHRP 20-123(23) | A Strategic Plan for Equipment Management Research | RFP | |
NCHRP 20-123(24) | Roadmap for Integrated Selection of Multimodal Facilities | Pending | |
NCHRP 20-124 | Deploying Transportation Security Practices in State DOTs | Final | |
NCHRP 20-125 | Strategies for Incorporating Resilience into Transportation Networks | Completed | Final deliverables are in the editorial and publication process. |
NCHRP 20-126 | Support for Critical Issues in Transportation and Commitment to the Future IHS | Final | |
NCHRP 20-126(01) | Programmatic Issues of Future System Performance | Final | Published as NCHRP Web-Only Document 346 |
NCHRP 20-126(02) | State Transportation Agency Multifaceted Decision-Making for Future System Performance | Final | |
NCHRP 20-126(03) | Advancing Practices of In Situ Nondestructive Evaluation of Highway System Asset Foundational Condition and Capability | Final | Published as NCHRP Research Report 1041 |
NCHRP 20-127 | Business Case and Communications Strategies for State DOT Resilience Efforts | Final | |
NCHRP 20-128 | Emergency Response: Organizational and Operational Models Used by State DOTs | Final | |
NCHRP 20-129 | Guide for Addressing Encampments on State Transportation Rights-of-Way | Completed | Phase I only. |
NCHRP 20-130 | Incorporating Human Factors Guidelines into Transportation Projects, Programs, and Practices | Pending | |
NCHRP 20-131 | Qualitatively Valuing Research for Transportation Agencies: A Guide | Pending | |
NCHRP 20-132 | Electric Vehicle Fire Mitigation and Response Toolkit | RFP | |
NCHRP 20-133 | Toolkit for Implementation of AI-Based Solutions for State Departments of Transportation | RFP | |
NCHRP 20-134 | Guide for Conducting Right-of-Way Research in the Project Delivery Process | RFP | |
NCHRP 20-135 | Incorporating Public Health Outcomes into the Transportation Planning and Decision-Making Process | RFP | |
NCHRP 20-136 | Leveraging Original Equipment Manufacturer Vehicle Sensor Data for Pavement Management | RFP | |
NCHRP 20-137 | Compensating Community Members for Participation in Transportation Decision-Making: Emerging Best Practices | RFP | |
NCHRP 20-138 | Defining, Assessing, and Monitoring Transportation System Health: Guide | RFP | |
NCHRP 20-19(2) | Pedestrian Safety and Convenience on Suburban and Rural Highways---Implementation Phase | Final | |
NCHRP 20-23 | Kinematic Differential GPS Satellite Surveying | Completed | |
NCHRP 20-24 | Administration of Highway and Transportation Agencies | Active | |
NCHRP 20-24(001) | Using Market Research to Improve the Management of Transportation Systems | Completed | |
NCHRP 20-24(002) | Executive Management Information Systems for State Departments of Transportation | Completed | |
NCHRP 20-24(003) | Expanding the Civil Engineering Pool | Completed | |
NCHRP 20-24(003)A | Civil Engineering Careers in Transportation---Outreach Program | Completed | |
NCHRP 20-24(005) | Public Outreach in Transportation Management | Completed | |
NCHRP 20-24(006)A | Performance Measures for State Highway and Transportation Agencies | Completed | |
NCHRP 20-24(006)B | Business Systems Plan for Highway Engineering Information | Completed | |
NCHRP 20-24(006)C | Information Systems for Transportation Agencies | Completed | |
NCHRP 20-24(007) | Alternatives to Motor Fuel Taxes for Financing Surface Transportation Improvements | Completed | |
NCHRP 20-24(007)A | Alternative Approaches to the Taxation of Heavy Vehicles | Completed | |
NCHRP 20-24(008) | Project 20-24 Series---Revisited | Completed | |
NCHRP 20-24(009) | State Departments of Transportation---Strategies for Change | Completed | |
NCHRP 20-24(010) | Customer-Based Quality in Transportation | Completed | |
NCHRP 20-24(011) | Asset Management Guidance for Transportation Agencies | Completed | |
NCHRP 20-24(012) | Avoiding Delays During the Construction Phase of Highway Projects | Completed | |
NCHRP 20-24(013) | Innovative Financing Clearinghouse | Completed | |
NCHRP 20-24(014) | Managing Change in State Departments of Transportation | Final | |
NCHRP 20-24(018) | Outsourcing of State DOT Delivery of Capital Programs | Completed | |
NCHRP 20-24(019) | State DOTs and E-Business | Completed | |
NCHRP 20-24(020) | Using Performance Measures to Manage Change in State Departments of Transportation | Completed | |
NCHRP 20-24(021) | Characteristics of the 21st Century Operations-Oriented State DOT | Completed | |
NCHRP 20-24(023) | Assessing the Importance of Transportation for Major Industries and Sectors of the U.S. Economy | Final | |
NCHRP 20-24(024) | Transportation Mobility, Access and Safety for an Aging Population | Completed | |
NCHRP 20-24(029) | CEO Leadership Forum | Completed | |
NCHRP 20-24(030) | Performance Measurement in Context Sensitive Design | Completed | |
NCHRP 20-24(031) | Effective Program Delivery in a Constrained Fiscal Environment | Completed | The final report has been submitted to AASHTO. |
NCHRP 20-24(033) | Transportation Vision 2010 and Beyond | Completed | |
NCHRP 20-24(034) | Commuting in America | Completed | |
NCHRP 20-24(035) | Communicating Urban Congestion Information | Completed | |
NCHRP 20-24(036) | AASHTO Strategic Plan Support | Completed | |
NCHRP 20-24(037) | Measuring Performance among State DOTs: Sharing Good Practices | Completed | |
NCHRP 20-24(037)A | Measuring Performance among State DOTs: Sharing Good Practices -- Construction Project Cost and Schedule | Completed | |
NCHRP 20-24(037)B | Measuring Performance among State DOTs: Sharing Good Practices based on the International Roughness Index | Completed | Completed |
NCHRP 20-24(037)C | Measuring Performance Among State DOTs, Sharing Best Practices -- Safety | Final | |
NCHRP 20-24(037)D | Measuring Performance Among State DOTs, Sharing Best Practices--Operations Performance Using Incident Response Time | Final | |
NCHRP 20-24(037)E | Measuring Performance Among State DOTs, Sharing Best Practices— Preservation: Comparative Analysis of Bridge Conditions | Final | |
NCHRP 20-24(037)F | Establishment of Comparative Performance Measures Program Infrastructure to Support National System Performance Data Collection and Analysis | Completed | |
NCHRP 20-24(037)G | Technical Guidance for Deploying National Level Performance Measurements | Completed | |
NCHRP 20-24(037)H | Workshop on Transportation-System Performance Measures Suitable for National Use | Completed | |
NCHRP 20-24(037)I | Measuring Performance among State DOTs: Sharing Good Practices -- Congestion | Completed | |
NCHRP 20-24(037)J | Measuring Performance among State DOTs: Sharing Good Practices – Pavement Health | Completed | |
NCHRP 20-24(037)K | Measuring Performance among State DOTs: Sharing Good Practices -- Serious Crash Injury | Completed | |
NCHRP 20-24(037)L | National Report on Transportation System Performance -- State DOTs Telling the Story | Completed | |
NCHRP 20-24(038) | CEO Engagement Options | Completed | |
NCHRP 20-24(039) | Alternative Organizational Designs for State Transportation Departments | Final | |
NCHRP 20-24(040) | Analysis and Benchmarking of State DOT Recruitment and Hiring Practices | Completed | |
NCHRP 20-24(041) | Project Summaries for State DOT CEOs | Completed | |
NCHRP 20-24(042) | Guidelines for State DOT quality management systems | Completed | |
NCHRP 20-24(043) | Innovative Contracting for Major Transportation Projects Workshop | Completed | The workshop was the deliverable |
NCHRP 20-24(044) | Highway Safety Leadership Organizational Issues; A Survey of States and Recommendations for Sustaining Progrss | Completed | |
NCHRP 20-24(045) | Executive Seminar, Coordinating Transportation and Land Development | Final | |
NCHRP 20-24(046) | Freight Transportation: New Roles for State DOTs | Final | |
NCHRP 20-24(047) | Racial and Gender Diversity in State DOTs and Transit Agencies: Phase I Benchmark Scoping | Completed | |
NCHRP 20-24(048) | Analysis and Benchmarking of State DOT Human Resource Activities | Final | |
NCHRP 20-24(049) | Future Financing Options to Meet Highway and Transit Needs | Completed | |
NCHRP 20-24(050) | In-Service Training Needs for State DOTs | Completed | |
NCHRP 20-24(051) | State DOT Leadership Forum--2006 | Completed | |
NCHRP 20-24(052) | Future Options for the National System of Interstate and Defense Highways | Final | |
NCHRP 20-24(053) | Twenty-First Century Leadership and Management Techniques for State DOTs | Final | The project has been completed and the products provided to AASHTO for distribution. |
NCHRP 20-24(054) | 2006 Bottom Line Report State and National Investment Analysis: Highways | Completed | |
NCHRP 20-24(054)G | 2006 AASHTO Bottom Line Scoping | Completed | |
NCHRP 20-24(055) | National Summit on Future Transportation Funding and Finance Strategies: States and Metropolitan Regions | Completed | |
NCHRP 20-24(056) | National Leadership Retreat for State and Local Officials to Advance a Vision of the Transportation System Required to Meet Future Needs | Completed | |
NCHRP 20-24(058) | Toward Developing Performance Based Federal-Aid Programs | Completed | |
NCHRP 20-24(059) | Strategies for Reducing the Impacts of Surface Transportation on Global Climate Change | Completed | |
NCHRP 20-24(060) | Updating AASHTO's Strategic Plan in CY 2008 | Completed | |
NCHRP 20-24(061) | Issues and Practices in Performance-Based Maintenance and Operations Management | Completed | |
NCHRP 20-24(062) | Communication Strategies To Increase Understanding of Funding and Revenue Needs for the Nation’s Transportation System | Completed | This project was part of the initial NCHRP 20-24A task-order procurement. |
NCHRP 20-24(063) | Partnership Approaches to Identify, Promote, and Implement Congestion Management Strategies | Final | |
NCHRP 20-24(064) | Implications of Performance Standards, Conformity-Style Approaches, and Other Mechanisms for Assessing Greenhouse Gas (GHG) Reduction Strategies and Integrating GHG Objectives into Transportation Decision Making | Completed | The project was administered under the NCHRP 20-24A task-order system. |
NCHRP 20-24(065) | Strengthened Economic Basis for Systematic Selection of Highway and Transit Projects | Final | This project was removed from the NCHRP 20-24 program. |
NCHRP 20-24(066) | Update of Technology and Alternative Fuels Assessment | Final | This project was removed from the NCHRP 20-24 program. |
NCHRP 20-24(067) | State DOT CEO Leadership Forum- Spring/Summer 2009; Pilot Study of State Driven Performance Based Management Reporting | Final | |
NCHRP 20-24(068) | Estimating the Costs to State Governments Due to Highway-Related Debilitating Injury and Fatal Crashes | Completed | |
NCHRP 20-24(069) | Implementable Strategies for Shifting to Direct Usage-Based Charges for Transportation Funding | Final | The project is administered under the NCHRP 20-24A task-order system. |
NCHRP 20-24(070) | Update the 2003 Report Reducing Greenhouse Gas Emissions from U.S. Transportation | Completed | Report was published by the Pew Center. |
NCHRP 20-24(071) | Expediting NEPA Decisions and Other Practitioner Strategies for Addressing High Risk Issues in Project Delivery | Final | |
NCHRP 20-24(072) | Maximizing Highway Operational Strategies to Reduce Greenhouse Gas (GHG) Emissions | Final | The project was cancelled in October 2011; funds were reassigned to other projects. |
NCHRP 20-24(073) | Economic and Employment Benefits of Highway Investments in Response to Economic Downturns: A Scoping Study | Final | Study was conducted by TRB's Studies and Special Programs Division |
NCHRP 20-24(074) | Executive Strategies for Risk Management by State Departments of Transportation | Completed | |
NCHRP 20-24(075) | Development of a Performance Management Roadmap | Final | The project was cancelled in October 2011 and funds reassigned. |
NCHRP 20-24(076) | Developing Surface Transportation Funding and Financing Solutions for the Coming Decade | Final | This project was cancelled and the funds reallocated to other activities. |
NCHRP 20-24(077) | Support for a TRB-sponsored conference on Strategies for Meeting Critical Data Needs for State and Metropolitan Transportation Agencies | Completed | All work was conducted by TRB staff. |
NCHRP 20-24(079) | Specifications for a National Study of the Future 3R, 4R, and Capacity Needs of the Interstate System | Completed | |
NCHRP 20-24(080) | Assessing the Economic Benefit of Transportation Infrastructure Investment in a Mature Surface Transportation System | Final | |
NCHRP 20-24(081) | Leading in Lean Times: Maximizing Resources in a Constrained Environment | Completed | |
NCHRP 20-24(082) | Increasing Consistency in the Highway Performance Monitoring System for Pavement Reporting | Completed | |
NCHRP 20-24(083) | Alternative State DOT Organizational Models for Delivering Services | Completed | |
NCHRP 20-24(084) | State DOT CEO Leadership Forum 2013 | Final | |
NCHRP 20-24(086) | Critical Assessment for Future Surface Transportation Needs Analyses (Refresh the Policy Capacity of the Bottom Line/C&P) | Final | |
NCHRP 20-24(087) | State DOT Administration of Local Road Safety Aid | Final | |
NCHRP 20-24(089) | Role and Value of Transportation for U.S. Industries and Sectors | Final | |
NCHRP 20-24(091) | State DOT CEO Safety Leadership Forum (Support) | Completed | |
NCHRP 20-24(092) | Evaluation of State-of-the-Art Transportation Funding and Finance Methods | Final | |
NCHRP 20-24(093) | Public Communication | Final | |
NCHRP 20-24(094) | Support for Development of AASHTO’s Strategic Plan | Final | |
NCHRP 20-24(095) | Ensuring Essential Capability for the Future Transportation Agency | Final | |
NCHRP 20-24(097) | Advancing Performance Management under a National Framework | Final | |
NCHRP 20-24(098) | Connected/Automated Vehicle Research Roadmap for AASHTO | Final | |
NCHRP 20-24(099) | CEO Peer Exchange on Agency Management and Emerging Issues (2015) | Final | |
NCHRP 20-24(100) | State DOT CEO Leadership Forum – a Focus on Transportation Futures | Final | |
NCHRP 20-24(101) | An Introduction to Knowledge Management and Workforce Issues for CEOs: A CEO Leadership Workshop | Final | Combined with NCHRP 20-24(95) |
NCHRP 20-24(102) | Executive Strategies to Deliver Practical Design | Final | |
NCHRP 20-24(103) | Transportation Investment for Economic Development: Making the Case (Peer Exchange) | Final | |
NCHRP 20-24(104) | State DOT Implementation of MAP21 Performance Measure Rules | Final | |
NCHRP 20-24(105) | Launching U.S. Transportation Enterprise Risk Management Programs | Final | |
NCHRP 20-24(106) | Evaluation Guidance for Automated Vehicle Pilot and Demonstration Projects | Final | This research was conducted as NCHRP Project 20-102(04). Refer to that project for information. |
NCHRP 20-24(107) | Update to Transportation Governance: A 50-State Review of State Legislatures and Departments of Transportation | Final | |
NCHRP 20-24(108) | CEO Peer Exchange on Agency Management and Emerging Issues (2016) | Final | |
NCHRP 20-24(110) | Development of Resources to Support State DOT Communications on Safety | Final | |
NCHRP 20-24(111) | State DOT CEO Leadership Forum on Connected & Autonomous Vehicles and Transportation Infrastructure Readiness in conjunction with 2017 ITSWC, Montreal, Canada | Final | |
NCHRP 20-24(112) | Connected Road Classification System (CRCS) Development | Final | Contractor's Final report and summary presentation are available for download and use. |
NCHRP 20-24(113) | CEO Orientation and Peer Exchange Workshop 2017 | Final | |
NCHRP 20-24(116) | Guidance on Roles and Responsibilities in Operation of Automated Vehicles | Final | Project was cancelled |
NCHRP 20-24(119) | Strategic Research in Support of the Connected and Automated Vehicle Executive Leadership Team | Anticipated | |
NCHRP 20-24(12)A | Improving the Time Performance of Highway Construction Contracts | Completed | |
NCHRP 20-24(121) | Road Usage Charge: Applying Lessons Learned in New Zealand to the United States | Final | |
NCHRP 20-24(122) | A Comprehensive Study of Future Competencies for Transportation Planners | Final | |
NCHRP 20-24(124) | Performance Management Reporting Peer Exchange | Final | |
NCHRP 20-24(125) | Scoping Study to Develop the Basis for a Highway Standard to Conduct an All-Hazards Risk and Resilience Analysis | Completed | |
NCHRP 20-24(126) | National Automation Readiness Framework: Coast-to-Coast Automated Mobility | Final | Project was cancelled |
NCHRP 20-24(127) | Performance Management Implementation Concerns, Issues and Challenges | Final | |
NCHRP 20-24(128) | State-of-the-Art Review of Cooperative Automated Transportation (CAT) Systems | Final | |
NCHRP 20-24(129) | CEO Peer Exchange and Strategy Forum (2019) | Completed | |
NCHRP 20-24(130) | Support for Development of AASHTO’S 2021-2026 Strategic Plan | Final | |
NCHRP 20-24(131) | Mapping the Common Interests of AASHTO Committees | Final | |
NCHRP 20-24(132) | Understanding Knowledge Management in Context with Other Organizational Practices | Anticipated | This research will be conducted as NCHRP Project 23-18. |
NCHRP 20-24(133) | Update to Transportation Governance: A 50-State Review of State Legislatures and Departments of Transportation | Final | |
NCHRP 20-24(134) | Practices for Transportation Agency Procurement and Management of Advanced Technologies | Final | Conducted as NCHRP Project 23-19 |
NCHRP 20-24(135) | Operational Oversight of Drones - UAS Development and Deployment: Jurisdictional Issues and Options | Final | Project Fund was transferred to NCHRP 23-20 |
NCHRP 20-24(136) | Enabling Knowledge Management through Leadership Strategy and Culture | Final | Project fund was transferred to NCHRP Project 23-21 |
NCHRP 20-24(137) | Assessing and Communicating the Economic and Quality of Life Benefits of Transportation Infrastructure Investments: Message Testing | Final | |
NCHRP 20-24(138) | Collective and Individual Actions for State Departments of Transportation Envisioning and Realizing the Next Era of America’s Transportation Infrastructure – Phase I | Final | |
NCHRP 20-24(138)A | Collective and Individual Actions to Envision and Realize the Next Era of America’s Transportation Infrastructure—Phase 2 | Active | |
NCHRP 20-24(139) | Into the 2020s: A Peer Exchange Series for State Department of Transportation CEOs | Active | |
NCHRP 20-24(141) | Advancing the Art and Science of Decision-Making | Active | Research in progress |
NCHRP 20-24(144) | Enhancing State DOTs Agility in Project Development and Delivery | Active | |
NCHRP 20-24(145) | Harnessing the Safe System Approach to Improve Traffic Safety | Active | |
NCHRP 20-24(146) | Guide to Supporting and Sustaining Transportation Grant Programs for Local Governments and Tribes | Active | Research in progress |
NCHRP 20-24(147) | Identify Best Practices for Automated Driving Systems and Other Emerging Technologies | Active | |
NCHRP 20-24(148) | Transportation Climate Adaptation Through Asset Management Prioritization of Resilient Routes | Pending | |
NCHRP 20-24(149) | Recruiting and Retaining Talent in the Transportation Industry: Guide | Pending | A research agency has been selected for the project. The contracting process is underway. |
NCHRP 20-24(150) | A Framework for Data Exchanges Between Transportation Agencies and Third-Party Mapping Organizations | RFP | |
NCHRP 20-24(151) | Implementation of Artificial Intelligence Programs in State and Local Departments of Transportation | Anticipated | In development |
NCHRP 20-24(152) | Current Workforce Challenges to Recruit and Retain Construction Inspectors | Anticipated | In development |
NCHRP 20-24(153) | Roadmap to Addressing State DOT Workforce Planning and Development Needs | Anticipated | In development |
NCHRP 20-24A | Task-Order Support for Research on the Administration of Highway and Transportation Agencies | Final | |
NCHRP 20-24B | Research Supporting the NCHRP Project Panel on Administration of Highway and Transportation Agencies | Completed | |
NCHRP 20-25 | Training Needs for Highway Construction Personnel | Completed | |
NCHRP 20-25(2) | Training for Highway Construction Personnel | Completed | |
NCHRP 20-25(3) | Development of Training Material for Highway Construction Personnel | Completed | |
NCHRP 20-26 | Bond and Insurance Coverages for Highway Construction Contractors | Completed | |
NCHRP 20-27 | Adaptation of Geographic Information Systems for Transportation | Completed | |
NCHRP 20-27(2) | Development of System and Application Architectures for Geographic Information Systems in Transportation | Completed | |
NCHRP 20-27(3) | Guidelines for the Implementation of Multimodal Transportation Location Referencing Systems | Completed | |
NCHRP 20-28 | Hazardous Wastes in Highway Rights-of-Way | Completed | |
NCHRP 20-29 | Development of a Multimodal Framework for Freight Transportation Investment: Consideration of Rail and Highway Trade-offs | Completed | |
NCHRP 20-29(2) | Development of a Computer Model for Multimodal, Multicriteria Transportation Investment Analysis | Completed | |
NCHRP 20-30 | NCHRP-IDEA | Active | |
NCHRP 20-31 | Public Policy for Surface Freight Transportation | Completed | |
NCHRP 20-32 | Development of a Comprehensive Thesaurus for Transportation Research | Completed | |
NCHRP 20-32(2) | Refinement of Transportation Research Thesaurus and Implementation of Updated TRIS Keyword Index | Completed | |
NCHRP 20-33 | Facilitating the Implementation of Research Findings | Completed | |
NCHRP 20-33(2) | The Role of Procurement and Contracting Approaches in Facilitating the Implementation of Research Findings | Completed | |
NCHRP 20-34 | Developing Measures of Effectiveness for Truck Weight Enforcement Activities | Completed | |
NCHRP 20-35 | Plan for SHRP Follow-Up Studies | Completed | |
NCHRP 20-36 | Highway Research and Technology -- International Information Sharing | Active | |
NCHRP 20-37 | Strategic Direction for the NCHRP and Other AASHTO Research Activities | Completed | |
NCHRP 20-38 | Development of a Manual for State Transportation Research | Completed | |
NCHRP 20-39 | Improved User Access to TRIS Through the AASHTO VAN | Completed | |
NCHRP 20-39(2) | Improved Transportation Research-In-Progress Data System | Final | |
NCHRP 20-40 | Conversion of AASHTO Publications to Metric Units | Completed | |
NCHRP 20-41 | Approaches for Increasing Private-Sector Involvement in Highway Innovation Process | Completed | |
NCHRP 20-42 | Sustainable Transportation | Completed | |
NCHRP 20-43 | Application of CD-ROM Technology for AASHTO Technical Documents | Final | |
NCHRP 20-44 | NCHRP Implementation Support Program | Active | |
NCHRP 20-44(01) | Increasing WMA Implementation by Leveraging the State-Of-The-Knowledge | Final | |
NCHRP 20-44(02) | Implementation of the AASHTO Guide for Enterprise Risk Management | Final | |
NCHRP 20-44(03) | Dissemination of NCHRP Report 799: Management Guide to Intellectual Property for State Departments of Transportation | Final | |
NCHRP 20-44(04) | Implementing Products from NCHRP Research on Adhesive Anchor Systems | Completed | |
NCHRP 20-44(05) | Dissemination of “NCHRP Domestic Scan 14-01: Leading Management Practices in Determining Funding Levels for Maintenance and Preservation” | Final | |
NCHRP 20-44(06) | Consultant Support for Massachusetts DOT’s Commission on the Future of Transportation in the Commonwealth | Final | |
NCHRP 20-44(08) | NCHRP Comprehensive Communications Plan | Final | |
NCHRP 20-44(09) | Quantitative and Qualitative Methods for Capturing the Impacts and Value of NCHRP Research | Final | |
NCHRP 20-44(11) | Advancing practices for data governance, information management, and managing the impact of digitization on DOT workforces | Final | |
NCHRP 20-44(12) | Building Capacity for Self-Assessment of Data Effectiveness for Agency Business Needs | Final | |
NCHRP 20-44(13) | Implementation of NCHRP Research Report 893: The Oregon DOT Statewide Pedestrian and Bicycle Plan | Final | |
NCHRP 20-44(14) | Implementation of NCHRP Research Report 887 - Guidance for Underwater Installation of Filter Systems | Final | |
NCHRP 20-44(15) | Consultant Support for implementation of Design Hydrology for Stream Restoration and Channel Stability at Stream Crossings | Final | |
NCHRP 20-44(16) | Implementation of IDEAL Cracking Test for Asphalt Mix Design QC/QA | Final | |
NCHRP 20-44(17) | Implementing the Results of NCHRP Project 20-68A, Domestic Scan 17-01: Successful Approaches for the Use of Unmanned Aerial Systems by Surface Transportation Agencies | Final | |
NCHRP 20-44(18) | Validation of the PFC Performance-Based Mix Design Method | Completed | |
NCHRP 20-44(19) | Implementation of Proposed AASHTO Standards for Asphalt Binders and Mixtures | Completed | Project complete. |
NCHRP 20-44(21) | Synthesis of State Peer Exchanges and RPPM | Final | |
NCHRP 20-44(22) | Right Sizing Transportation Investments | Final | Implementation Program for NCHRP 19-14 |
NCHRP 20-44(23) | Pilot Test of Climate Change Design Practices Guide for Hydrology and Hydraulics | Completed | Completed |
NCHRP 20-44(24) | Pilot Test of Proposed Standard Practice for Recycling Agents in Asphalt Mixtures Incorporating RAP and RAS | Completed | Project complete. |
NCHRP 20-44(25) | Workshop to Introduce Proposed Changes to AASHTO M 320 and M 332 to Key Stakeholder Groups | Completed | |
NCHRP 20-44(26) | Implementing Guide Specifications for the Construction of Chip Seals, Micro Surfacing, and Fog Seals | Final | Project Complete. |
NCHRP 20-44(27) | Facilitating Balanced Mix Design Implementation | Completed | Project complete. |
NCHRP 20-44(28) | Development of a Technology Transfer Plan for State Departments of Transportation Research Programs | Final | |
NCHRP 20-44(29) | Training for Highway Construction Noise Prediction Model-RCNM2.0 | Completed | Terminated. |
NCHRP 20-44(30) | Measuring the Effectiveness of Public Involvement at Five State Departments of Transportation: Implementation of the NCHRP Research Report 905 Toolkit | Final | |
NCHRP 20-44(32) | Guidelines for Selecting Travel Forecasting Methods and Techniques—Implementation | Final | |
NCHRP 20-44(33) | Implementing NCHRP Project 20-119: Evaluating the Suitability or Roadway Corridors for Use by Monarch Butterflies | Final | |
NCHRP 20-44(34) | Successful Practices for State Transportation Research Office's Complying with 2 CFR 200 (NCHRP 20-111J) | Final | Research is complete. A Contractor's Report is available on the project web page. |
NCHRP 20-44(35) | Implementation for NCHRP Research Report 948—Guide for Pedestrian and Bicycle Safety at Alternative Intersections and Interchanges | Final | |
NCHRP 20-44(36) | Workshops on Long-Range Strategic Issues Affecting Preservation, Maintenance, and Renewal of Highway Infrastructure | Final | |
NCHRP 20-44(36)A | Workshops on Long-Range Strategic Issues Affecting Preservation, Maintenance, and Renewal of Highway Infrastructure | Active | |
NCHRP 20-44(37) | Workshops on Performance Measures in Snow and Ice Control Operations | Completed | |
NCHRP 20-44(39) | Consultant Support for Implementation of Guidebook for Managing Data from Emerging Technologies | Final | |
NCHRP 20-44(40) | Implementing the Agency Capability Building Framework to Activate Organizational Change | Active | |
NCHRP 20-44(41) | Deploying Transportation Resilience Practices in State DOTs: Implementation | Active | |
NCHRP 20-44(42) | Agency Implementation of the Design-Build and Contract Manager/General Contractor Guidebooks for Post-Award Contract Administration | Completed | Publication decision pending. |
NCHRP 20-44(43) | Implementing the Benefits of Green Infrastructure for Effective Roadside Water Management | Active | |
NCHRP 20-44(44) | Implementing the Design Practices Guide for Applying Climate Change Information to Hydrologic and Coastal Design of Transportation Infrastructure | Active | |
NCHRP 20-44(45) | Supporting State DOT Adoption of Knowledge Management Practices | Active | |
NCHRP 20-44(46) | Implementing the Asset Valuation Guide Developed Through NCHRP Project 23-06 | Active | |
NCHRP 20-44(47) | UAS Operations Practical Skills Pilot Program for State DOTs | Active | |
NCHRP 20-44(48) | Peer Exchanges on Data Management and Governance Practices | Active | |
NCHRP 20-44(49) | Research Implementation - Strategies for Overcoming Barriers | Active | |
NCHRP 20-44(50) | Implementation of Asphalt Pavement Raveling Detection Algorithm | Active | |
NCHRP 20-44(51) | Developing Training Materials to Implement Context Classifications | Active | |
NCHRP 20-44(52) | Implementing a Guide for Urban and Suburban Roadway Cross-Section Reallocation | Active | |
NCHRP 20-44(53) | Implementing the Areawide Approach to Roadway Safety Management and Safety Planning | Active | |
NCHRP 20-44(54) | Training Program for the Emergency Management Playbook | Active | |
NCHRP 20-44(55) | Implementing NCHRP Guides on Pollinator Habitat Conservation along Roadways | Pending | |
NCHRP 20-44(56) | Implementation Project to Measure and Communicate the Value of Access Management | Pending | |
NCHRP 20-44(57) | Implementing Scenario Planning Across Transportation Agencies | Pending | |
NCHRP 20-44(58) | Helping MPOs and State DOTs Implement Innovative Strategies from NCHRP Research Report 1002 | RFP | |
NCHRP 20-44(59) | Implementing the research results of NCHRP Research Report 1080, Using Cooperative Automated Transportation Data for Freeway Operational Strategies | Anticipated | In development |
NCHRP 20-44(60) | Implementation of NCHRP Project 09-65: Capturing Durability of High Recycled Binder Ratio (RBR) Asphalt Mixtures | Anticipated | In development |
NCHRP 20-45 | Scientific Approaches for Transportation Research | Completed | |
NCHRP 20-46 | Systems Approach to Evaluating Innovations for Integration into Highway Practice | Final | |
NCHRP 20-47(1) | Quality and Accuracy of Positional Data in Transportation | Completed | |
NCHRP 20-48 | Accessibility of Non-English Language Transportation Information | Completed | |
NCHRP 20-48(01) | Making the Business Case for Translating Non-English Transportation Information | Completed | |
NCHRP 20-49 | Support for LTPP Advisory Structure | Completed | |
NCHRP 20-50(1) | LTPP Data Analysis: Data Availability and Facilitation | Completed | |
NCHRP 20-50(10&16) | LTPP Data Analysis: Influence of Design and Construction Features on the Response and Performance of New Flexible and Rigid Pavements | Completed | |
NCHRP 20-50(10) | LTPP Data Analysis: Factors Affecting the Performance of Flexible and Rigid Pavements | Completed | |
NCHRP 20-50(14) | LTPP Data Analysis: Significance of "As-Constructed" AC Air Voids to Pavement Performance | Completed | |
NCHRP 20-50(17) | | Final | |
NCHRP 20-50(18) | LTPP Data Analysis: Significance of As-Constructed Asphalt Pavement Air Voids to Pavement Performance | Completed | |
NCHRP 20-50(19) | LTPP Data Analysis: Feasibility of Using LTPP Data to Develop Relationships Between Laboratory- and Field-Derived Properties of Unbound Materials | Completed | |
NCHRP 20-50(2) | LTPP Data Analysis: Relative Performance of Jointed Plain Concrete Pavements with Sealed and Unsealed Joints | Completed | |
NCHRP 20-50(20) | LTPP Data Analysis: Develop Practical Tools and Procedures to Improve WIM Data Quality | Final | Publication pending. Report to be published as Research Report:WOD-370 and Practical Guide: Report 1070 |
NCHRP 20-50(21) | Enhancements of Climatic Inputs and Related Models for Pavement ME Using LTPP Climate Tool (MERRA-2) | Final | The remaining tasks will be completed under NCHRP 20-50(21)A. |
NCHRP 20-50(21)A | Enhancements of Climatic Inputs and Related Models for Pavement ME Using LTPP Climate Tool (MERRA-2) | Completed | Research is complete. Final report under review. |
NCHRP 20-50(22) | LTPP Data Analysis: Feasibility of Using LTPP Data to Improve Use of FWD and Longitudinal Profile Measurements | Final | |
NCHRP 20-50(22)A | LTPP Data Analysis: Guidelines to Improve Use of FWD and Longitudinal Profile Measurements | Completed | |
NCHRP 20-50(3&4) | LTPP Data Analysis: Effectiveness of Maintenance and Rehabilitation Options | Completed | |
NCHRP 20-50(5) | LTPP Data Analysis: Variations in Pavement Design Inputs | Completed | |
NCHRP 20-50(7&12) | LTPP Data Analysis: Daily and Seasonal Variations in Insitu Material Properties | Completed | |
NCHRP 20-50(8&13) | LTPP Data Analysis: Factors Affecting Pavement Smoothness | Completed | |
NCHRP 20-50(9) | LTPP Data Analysis: Feasibility of Using FWD Deflection Data to Characterize Pavement Construction Quality | Completed | |
NCHRP 20-51(1) | LTPP Product Development: National Workshop on Pavement Smoothness | Completed | |
NCHRP 20-51(2) | LTPP Product Development: PCC Pavement Practice Manual and Workshop | Completed | |
NCHRP 20-51(3) | LTPP Product Development: Pavement Smoothness Specification for Approaches to WIM Equipment Sites | Completed | |
NCHRP 20-52 | TRAC PAC2 -- A Hands-on Educational Program | Completed | |
NCHRP 20-52(01) | Implementing TRAC PAC2 -- A Hands-on Educational Program | Completed | |
NCHRP 20-53 | Using Customer Needs to Drive Transportation Decisions | Completed | |
NCHRP 20-54 | | Final | |
NCHRP 20-55 | TRB Study on Future Surface Transportation Agency Human Resource Needs: Strategies for Recruiting, Training, and Retaining Personnel | Completed | |
NCHRP 20-56 | New Services for AASHTO's World Wide Web Site | Final | |
NCHRP 20-57 | Analytic Tools to Support Transportation Asset Management | Completed | |
NCHRP 20-58 | Oversight Panel a Future Strategic Highway Research Program | Pending | |
NCHRP 20-58(1) | Detailed Planning for Research on Accelerating the Renewal of America's Highways ( | Completed | |
NCHRP 20-58(2) | Detailed Planning for Research on Making a Significant Improvement in Highway Safety ("Safety") | Completed | |
NCHRP 20-58(3) | Detailed Planning for Research on Providing a Highway System with Reliable Travel Times ( | Final | |
NCHRP 20-58(4) | Detailed Planning for Research on Providing Highway Capacity in Support of the Nation's Economic, Environmental, and Social Goals ("Capacity") | Completed | |
NCHRP 20-59 | | Final | |
NCHRP 20-59(01) | AASHTO Security Research Workshops and Forum | Completed | |
NCHRP 20-59(02) | Bridge/Tunnel/Highway Infrastructure Vulnerability Workshops | Completed | |
NCHRP 20-59(03) | Support for the FHWA/AASHTO Blue Ribbon Panel on Bridge and Tunnel Security | Completed | |
NCHRP 20-59(04) | White Paper on Highway Security Issues for Reauthorization | Completed | |
NCHRP 20-59(05) | National Needs Assessment for Ensuring Transportation Infrastructure Security | Completed | |
NCHRP 20-59(06) | Responding to Threats: A Field Personnel Manual | Completed | |
NCHRP 20-59(06)A&B | System Security Awareness for Transportation Employees | Completed | |
NCHRP 20-59(07) & 20-59(07)A | Transportation Security Information Clearinghouse & White Paper | Completed | |
NCHRP 20-59(08) | Emergency Transportation Operations Preparedness and Response Workshop: Adaptations for Rural and International Border Crossing Situations | Completed | |
NCHRP 20-59(09) | Methods for Determining Transportation and Economic Consequences of Terrorist Attacks | Completed | |
NCHRP 20-59(10) | Secure Communication Infrastructure | Completed | |
NCHRP 20-59(11) | Emergency Traffic Operations Management | Completed | |
NCHRP 20-59(12) | Security and Emergency Response 2003 Survey of State Transportation Agencies | Completed | |
NCHRP 20-59(14) | Research Support for the AASHTO Special Committee on Transportation Security | Completed | |
NCHRP 20-59(14)B | Research Support for the AASHTO Special Committee on Transportation Security and Emergency Management (SCOTSEM) | Completed | |
NCHRP 20-59(14)C | Strategic Plan Implementation Support Services for SCOTSEM | Completed | |
NCHRP 20-59(16) | Preparation of Educational Materials: Outreach | Completed | |
NCHRP 20-59(16)A | Security Funding Resources: A Reference Guide for State Transportation Agencies | Completed | |
NCHRP 20-59(16)B | Security Framework: Fundamentals of Transportation Security for DOTs | Completed | |
NCHRP 20-59(17) | Guide to Risk Management of Multimodal Transportation Infrastructure | Completed | |
NCHRP 20-59(18) | Guidelines for Transportation Emergency Training Drills and Exercises | Completed | |
NCHRP 20-59(19) | Transportation Response Options: Scenarios of Infectious Disease, Biological Agents, Chemical, Biological, Radiological, or Nuclear Exposure | Completed | |
NCHRP 20-59(21) | Continuity of Operations Plans for Transportation Agencies | Completed | |
NCHRP 20-59(22) | A Guide to Emergency Quarantine and Isolation Controls of Roads in Rural Areas | Completed | |
NCHRP 20-59(23) | A Guide to Emergency Response Planning at State Transportation Agencies | Completed | |
NCHRP 20-59(24) | A Guide to Transportation and Hazards Resources | Completed | |
NCHRP 20-59(25) | Security Research Plan | Completed | |
NCHRP 20-59(26) | National Needs Assessment for Ensuring Transportation Infrastructure Security (2009-2015) | Completed | |
NCHRP 20-59(28) | Security 101: Physical Security Standards for Transportation | Completed | |
NCHRP 20-59(30) | Incident Command System (ICS) Training for Field Level Transportation Supervisors and Staff | Completed | |
NCHRP 20-59(30)A | Incident Command System (ICS) Training for Field Level Transportation Supervisors and Staff | Final | |
NCHRP 20-59(32) | A Transportation Guide for All-Hazards Emergency Evacuation | Completed | |
NCHRP 20-59(33) | Pre-Event Planning to Support Transportation Infrastructure Recovery | Completed | |
NCHRP 20-59(34) | Methodologies to Estimate the Economic Impacts of Disruptions to the Goods Movement System | Final | Published as NCHRP Report 732. |
NCHRP 20-59(36) | Managing Catastrophic Transportation Emergencies: A Guide for Transportation Executives | Completed | |
NCHRP 20-59(37) | Debris Management Handbook for Local and State DOTs | Completed | |
NCHRP 20-59(41) | Legal Definition of 'First Responder' | Completed | |
NCHRP 20-59(42) | A Guide to Regional Transportation Planning for Disasters, Emergencies, and Significant Events | Completed | |
NCHRP 20-59(43) | Incorporating Transportation Security Awareness into Routine State DOT Operations and Training | Completed | |
NCHRP 20-59(44) | A Guide for Public Transportation Pandemic Planning and Response | Completed | |
NCHRP 20-59(47) | Emergency Exit Signs and Marking Systems for Highway Tunnels | Final | |
NCHRP 20-59(48) | Effective Practices for the Protection of Transportation Infrastructure from Cyber Incidents | Completed | |
NCHRP 20-59(50) | Mainstreaming Transportation Hazards and Security Risk Management: CAPTA Update and Implementation | Completed | |
NCHRP 20-59(51)A | Security 101: A Physical & Cyber Security Primer for Transportation Agencies | Completed | |
NCHRP 20-59(51)B | A Guide to Emergency Management at State Transportation Agencies, Second Edition | Completed | |
NCHRP 20-59(51)C | Research Support for Implementing Security, Emergency Management, and Infrastructure Protection at State Transportation Agencies | Completed | |
NCHRP 20-59(52) | Communications Worker Credentialing Requirements | Completed | |
NCHRP 20-59(53) | FloodCast: A Framework for Enhanced Flood Event Decision Making for Transportation Resilience | Completed | |
NCHRP 20-59(53)A | A Guide to Flood Forecasting for Transportation Resilience | Completed | |
NCHRP 20-59(54) | Transportation System Resilience: Research Roadmap and White Papers | Completed | |
NCHRP 20-59(55) | Transportation System Resilience: CEO Primer & Engagement | Final | |
NCHRP 20-59(56) | Support for State DOT Transportation Systems Resilience and All-Hazards Programs | Final | |
NCHRP 20-60 | Performance Measures and Targets for Transportation Asset Management | Completed | |
NCHRP 20-61 | Transportation of Radioactive Waste | Final | Completed and published as National Research Council Report, Going the Distance |
NCHRP 20-62 | Long-Term Viability of Fuel Taxes for Transportation Finance | Completed | |
NCHRP 20-63 | Performance Measurement Tool Box and Reporting System for Research Programs and Projects | Completed | Final Report Received and Published. |
NCHRP 20-63B | Performance Measurement Tool Box and Reporting System for Research Programs and Projects | Active | Research in Progress, website deployed, maintenance ongoing |
NCHRP 20-64 | XML Schemas for Exchange of Transportation Data (TransXML) | Completed | |
NCHRP 20-65 | Research for the AASHTO Standing Committee on Public Transportation | Active | |
NCHRP 20-65/Task 13 | State Public Transportation Division Involvement in State Emergency Planning, Response, and Recovery | Final | The report has been published as NCHRP Research Results Digest 326. |
NCHRP 20-65/Task 14 | Current Practice and Future Guidance on the Development of SAFETEA-LU- Required Coordinated Public Transit-Human Services Transportation Plan | Final | Completed--summarized in Research Results Digest 331. |
NCHRP 20-65/Task 15 | Updated Research Agenda for State DOT Public Transportation Divisions and NCHRP Project 20-65 | Final | Research has been completed. |
NCHRP 20-65/Task 16 | Current State Eligibility Requirements for Grantees to Qualify for Federal Section 5310 and 5311 Funds | Final | The research is completed and will be available as a Web-only document. |
NCHRP 20-65/Task 17 | Compliance Monitoring Tools | Final | This has been completed and published as NCHRP Research Results Digest 341 |
NCHRP 20-65/Task 18 | State DOT Best Practices for Developing a Title VI Civil Rights Program Document | Final | This research has been completed. Published as NCHRP Research Results Digest 340 |
NCHRP 20-65/Task 19 | Utilization by States of the Flexibility to Transfer Federal Funds Among Eligible Federal Programs | Final | Completed. The final report has been published as RRD 338. |
NCHRP 20-65/Task 20 | Analysis of Rural Intercity Bus Strategy | Final | Published as Research Results Digest 356 |
NCHRP 20-65/Task 21 | Cost/Benefit Analysis of Converting a Lane for Bus Rapid Transit | Final | Completed. The report has been published as RRD 336. |
NCHRP 20-65/Task 22 | Cost/Benefit Analysis of Converting a Lane for Bus Rapid Transit | Final | Published as NCHRP Research Results Digest 352 |
NCHRP 20-65/Task 23 | Identification of State and Local Matching Fund Requirements for State Administered Federal, and Non-Federal, Public Transportation Programs | Final | This research is completed and has been published as Research Results Digest 353 |
NCHRP 20-65/Task 24 | State DOT Role in the Implementation of Transportation Demand Management Programs | Final | Published as NCHRP Research Results Digest 348 |
NCHRP 20-65/Task 25 | Evaluate Requirements for the Utilization of Section 5311(f) Funds for Intercity Bus Service | Final | The final report is completed and published as Research Results Digest 356 |
NCHRP 20-65/Task 26 | A Review of Human Services Transportation Plans and Grant Programs | Final | This report is published as Research Results Digest 354 |
NCHRP 20-65/Task 27 | Innovative Financing Techniques and Best Practices for Providing Match on Federal Transit Administration Projects | Final | Completed. |
NCHRP 20-65/Task 28 | An Analysis of Automated Transit Data Collection and Analysis Processes in State DOT Transit Units and a Toolkit for Next Generation Transit Data Analysis | Final | Completed--Published as NCHRP Research Results Digest 373 |
NCHRP 20-65/Task 29 | Public Transportation Performance Measures: State of the Practice and Future Needs | Final | Research completed. Published as Research Results Digest 361 |
NCHRP 20-65/Task 30 | Local Practices in Developing Coordination Partnerships with Taxicab Companies | Final | Completed. Published as Research Results Digest 366 |
NCHRP 20-65/Task 31 | Transporting Oversize Wheelchairs | Final | Completed. |
NCHRP 20-65/Task 32 | Models to Support State-owned Park and Ride Lots and Intermodal Facilities | Final | Completed --Published as Research Results Digest 359 |
NCHRP 20-65/Task 33 | Determination of State DOT Financial Auditing Requirements for their Public Transportation Assistance Programs | Final | Completed. Published as Research Results Digest 368 |
NCHRP 20-65/Task 34 | Statewide Transit Goal Setting | Final | Completed. Published as Research Results Digest 358 |
NCHRP 20-65/Task 35 | Development of Appropriate Tools to Evaluate the Efficiency and Effectiveness of Selected Specialized Public Transportation Programs | Final | Completed |
NCHRP 20-65/Task 36 | Data Needs for Assessing Rural Transit Needs, Benefits, and Levels of Service | Final | Completed. Published as NCHRP Research Results Digest 376. |
NCHRP 20-65/Task 37 | Best Accounting Practices in Sub-recipient Recording and Reporting of Program Income | Final | Completed. |
NCHRP 20-65/Task 38 | Estimated Impact of Selected State DOT Cost Reduction Initiatives on the Administration of State Public Transportation Programs | Final | Published as NCHRP Research Results Digest 379 |
NCHRP 20-65/Task 39 | Impacts of the New Health Care Bill on Mass Transit | Completed | Completed. Published as NCHRP Research Results Digest 383. |
NCHRP 20-65/Task 40 | Construction Management Practices for Rural Projects--An Assessment | Final | Completed-- Published as NCHRP Research Results Digest 381 |
NCHRP 20-65/Task 41 | Survey of State Funding for Public Transportation--Ways to Improve it | Completed | Completed and published as NCHRP Web-Only Document 188. |
NCHRP 20-65/Task 42 | Rural Public Transportation Strategies for Responding to the Livable and Sustainable Communities Initiative | Final | Completed. Published as NCHRP Research Results Digest 375 |
NCHRP 20-65/Task 43 | Best Practices in the Electronic Administration of Federal and State Transit Grants | Completed | |
NCHRP 20-65/Task 44 | Curriculum for New State DOT Transit Grant Managers in Administering Federal and State Transit Grant Programs | Final | |
NCHRP 20-65/Task 45 | New Small Urbanized Area System: A Guidance Brief | Completed | Completed. |
NCHRP 20-65/Task 46 | Successful Methods to Acquire and Oversee the Outsourcing of Tasks and Projects Related to State DOT Management of Transit Grant Programs | Completed | |
NCHRP 20-65/Task 47 | MTAP Survey Tool Used to Assess FTA Contractor Performance of State DOT Triennial and Other FTA Reviews--An Update | Completed | |
NCHRP 20-65/Task 48 | Condition of State and Federally Funded Transit Assets | Completed | |
NCHRP 20-65/Task 49 | Impact Assessment Indicators for Administration of Public Transportation Grants | Completed | |
NCHRP 20-65/Task 50 | Strategic Plan for the Standing Committee on Public Transportation | Completed | |
NCHRP 20-65/Task 51 | Approaches To Improving the Grant Approval Processes for Transit Projects | Completed | |
NCHRP 20-65/Task 52 | Selected Indirect Benefits of State Investment in Public Transportation | Completed | |
NCHRP 20-65/Task 53 | Independent Cost Estimates for Design and Construction of Rural and Small Urban Transit Facilities | Final | Published as NCHRP RRD 397 |
NCHRP 20-65/Task 55 | Estimating the Long Term Impacts of MAP-21 on the Nation's Local Rural Transit Bus Infrastructure | Final | Completed--RRD 394 |
NCHRP 20-65/Task 56 | Best Practices in Rural Regional Mobility | Completed | |
NCHRP 20-65/Task 57 | Assessment of State DOT Transit Vehicle Procurement Models | Completed | |
NCHRP 20-65/Task 58 | Documentation of FTA Section 5310 Recipients and Projects Before the Enactment of Moving Ahead for Progress in the 21st Century (MAP-21) | Completed | |
NCHRP 20-65/Task 59 | The Determination of How Federal Section 5316 Funds Were Used Under the Safe, Accountable, Flexible, Efficient Transportation Equity Act: A Legacy For Users (SAFETEA-LU) and The Transportation Equity Act For The 21st Century (TEA 21) | Completed | |
NCHRP 20-65/Task 60 | The National Mobility Management Initiative: State DOTs Connecting Users and Rides for Specialized Transportation | Completed | Completed--NCHRP Report 832 Pre-Publication Draft—Subject to Revision |
NCHRP 20-65/Task 61 | Determine the Degree To Which JARC And New Freedom Activities are Being Continued or Initiated Under Map-21 | Completed | |
NCHRP 20-65/Task 62 | The National Perspective –An Assessment of Section 5310 Program Administration Under MAP-21 | Completed | |
NCHRP 20-65/Task 63 | DOT Oversight of Facility Projects | Completed | Research completed. |
NCHRP 20-65/Task 64 | Health and Human Services (particularly Medicaid) Revenue as Match | Completed | |
NCHRP 20-65/Task 65 | Best Practices for State DOTs to Meet Rural Bus Fleet Replacement and Expansion Needs | Completed | |
NCHRP 20-65/Task 66 | States and Local Use of Administrative Resources Provided by the Federal Transit Administration | Completed | |
NCHRP 20-65/Task 67 | Multi-Modal Project Planning | Completed | |
NCHRP 20-65/Task 68 | Successful Mobility Management Practices for Improving Transportation Services in Small Urban and Rural Areas | Completed | |
NCHRP 20-65/Task 69 | Consolidation of Rural Transit Systems | Completed | |
NCHRP 20-65/Task 70 | Cross Modal Investment | Completed | |
NCHRP 20-65/Task 71 | Transit Network Balance; Efficiency and Equity | Completed | |
NCHRP 20-65/Task 72 | Small System Alternative Fuel Strategies | Completed | |
NCHRP 20-65/Task 73 | Best Practices and Marketing to Increase Rural Transit Ridership and Investment | Completed | |
NCHRP 20-65/Task 74 | Best Practices and Tools for Addressing Transportation Needs and Public Transit Demands to Support the Integration of the Olmstead Population In Community Settings | Completed | |
NCHRP 20-65/Task 75 | Baseline Research on Allowable In-Kind and Local Match Sources | Completed | |
NCHRP 20-65/Task 76 | Opportunities for State DOTs (and Others) to Encourage Shared Use Mobility Practices in Rural Areas | Completed | |
NCHRP 20-65/Task 77 | Lessons Learned and Impacts to Date of State DOT Implementation of New Federal Transit Asset Management and Public Transportation Agency Safety Requirements | Completed | |
NCHRP 20-65/Task 78 | Impact of Decline in Volunteerism on Rural Transit Systems | Completed | Completed - Final Report posted to the web. |
NCHRP 20-65/Task 79 | Program Management Insights for the 5310 Program (Including Sub-Grantee Consolidation and Urban 5310) | Completed | Published as NCHRP Research Results 403. |
NCHRP 20-65/Task 80 | Capacity Building Options for DOT Transit Staff | Completed | Completed - Final Report posted to the web. |
NCHRP 20-65/Task 81 | Best Practices in Rural Service Assessment | Completed | Completed - Final Report posted to the web. |
NCHRP 20-65/Task 82 | Issues Associated with Providing Customized, Client-Based Transportation Services | Completed | Completed - Final Report posted to the web. |
NCHRP 20-65B | Research for the AASHTO Standing Committee on Public Transportation | Pending | |
NCHRP 20-66 | Strategic Plan for Transportation Information Management | Completed | |
NCHRP 20-67 | Making Transportation Tunnels Safe and Secure | Completed | |
NCHRP 20-68 | US Domestic Scan Program -- Business Plan | Final | The Domestic Scan Program has been initiated as a continuing NCHRP activity. Refer to NCHRP 20-68A. |
NCHRP 20-68(01) | U.S. Domestic Scan Program Pilot | Final | The Doestic Scan Program has been initiated as a continuing activity, NCHRP 20-68A. |
NCHRP 20-68A | US Domestic Scan Program - Phase 1 | Active | Completion date refers to 3rd phase program, NCHRP Project 20-68D. All scans are listed on this page. |
NCHRP 20-68A(02) | US Domestic Scan Program - Phase 2 | Final | |
NCHRP 20-68B | Accelerating the Rate of Innovation Among State DOTs | Final | |
NCHRP 20-68B(01) | Accelerating the Rate of Innovation Among State DOTs—Tracing Domestic Scan Impacts | Final | The initial project budget and time were extended to enable tracing of impact for additional scans. |
NCHRP 20-68C | Research on Innovation Networks--Domestic Scans | Final | |
NCHRP 20-68D | U.S. Domestic Scan Program (Phase 3) | Active | Phase 3 of the program is planned for 6 years, subject to continued availability of funds and satisfactory performance. |
NCHRP 20-68E | Planning and Executing the NCHRP U.S. Domestic Scan Program | Pending | |
NCHRP 20-69 | Guidance for Transportation Project Management | Completed | |
NCHRP 20-70 | Transportation Research Thesaurus Improvements | Completed | |
NCHRP 20-71 | Effective Experimental Design and Data Analysis in Transportation Research | Final | |
NCHRP 20-72 | Tools to Aid State DOTs in Responding to Workforce Challenges | Final | NCHRP supported additional work to develop a prototype web-based implementation of the toolbox. |
NCHRP 20-73 | Accelerating Transportation Program and Project Delivery: Conception to Completion | Completed | |
NCHRP 20-74 | Developing an Asset-Management Framework for the Interstate Highway System | Completed | |
NCHRP 20-74A | Development of Service Levels for the Interstate Highway System | Completed | |
NCHRP 20-75 | Implementing Transportation Knowledge Networks | Completed | Project completed |
NCHRP 20-76 | Guidelines for Conducting a Disparity and Availability Study for the Federal Disadvantaged Business Enterprise Program. | Completed | Completed - final report can be purchased or downloaded at the link below. |
NCHRP 20-77 | Transportation Operations Training Framework | Final | |
NCHRP 20-78 | Communicating the Value of Research | Completed | |
NCHRP 20-79 | Expansion of the Transportation Research Thesaurus | Completed | The project has been completed and the thesaurus has been updated with AASHTO definitions. |
NCHRP 20-81 | Guide to Implementing Strategies to Attract and Retain a Capable Transportation Workforce | Completed | |
NCHRP 20-82 | Next Generation Transportation Pooled Fund (TPF) Website | Completed | |
NCHRP 20-83 | Long-Range Strategic Issues Facing the Transportation Industry | Active | For more information, see each individual project in this series. |
NCHRP 20-83(01) | Economic Changes Driving Future Freight Transportation | Final | Published as NCHRP Report 750: Volume 1 |
NCHRP 20-83(02) | Expediting Future Technologies for Enhancing Transportation System Performance | Final | |
NCHRP 20-83(03) | Long-Range Strategic Issues Affecting Preservation, Maintenance, and Renewal of Highway Infrastructure | Completed | |
NCHRP 20-83(03)A | Long-Range Strategic Issues Affecting Preservation, Maintenance, and Renewal of Highway Infrastructure | Completed | |
NCHRP 20-83(04) | Preparing State Transportation Agencies for an Uncertain Energy Future | Final | |
NCHRP 20-83(05) | Climate Change and the Highway System: Impacts and Adaptation Approaches | Completed | The final project deliverables are available as NCHRP Report 750, Volume 2. |
NCHRP 20-83(06) | Effects of Socio-Demographics on Travel Demand | Completed | |
NCHRP 20-83(07) | Sustainability as an Organizing Principle for Transportation Agencies | Final | |
NCHRP 20-83A | Long-Range Strategic Issues Facing the Transportation Industry: December 2010 Workshop Report | Final | |
NCHRP 20-83B | Communicating the Results of NCHRP Strategic Transportation Issues Research | Active | |
NCHRP 20-84 | Improved Right-of-Way Procedures and Business Practices | Completed | Completed. Published as NCHRP Report 771 with CRP-CD 154 |
NCHRP 20-85 | Renewable Energy Guide for Highway Maintenance Facilities | Completed | The Renewable Energy Guide is available as NCHRP Report 751. |
NCHRP 20-86 | Attracting, Recruiting, and Retaining Skilled Staff for Transportation System Operations and Management | Completed | |
NCHRP 20-89 | Intellectual Property Management Guide for State Departments of Transportation | Final | |
NCHRP 20-90 | Improving Management of Transportation Information | Final | |
NCHRP 20-92 | Improving Access to International Transportation Research Information | Completed | |
NCHRP 20-93 | Development of a Guide for Transportation Technology Transfer | Final | |
NCHRP 20-94 | Development of a Formalized Process for the Adoption, Development, Maintenance, and Enhancement of TransXML Schemas | Completed | Completed |
NCHRP 20-95 | Identifying Successful Practices in the FHWA Disadvantaged Business Enterprise (DBE) Program | Completed | Project cancelled; Resumed at NCHRP Project 20-95A |
NCHRP 20-95A | Compendium of Successful Practices, Strategies, and Resources in the FHWA Disadvantaged Business Enterprise (DBE) Program | Final | Pubished as NCHRP Report 913 |
NCHRP 20-96 | Leadership Guide for Strategic Information Management for State Departments of Transportation | Final | |
NCHRP 20-97 | Improving Findability and Relevance of Transportation Information | Final | NCHRP Projects 20-97 and 20-97A are included here. |
NCHRP 20-98 | A Guide to Agency-Wide Knowledge Management for State Departments of Transportation | Final | |
NCHRP 20-99 | | Completed | |
NCHRP 21-03 | Instrumentation for Measuring Scour at Bridge Piers and Abutments | Completed | |
NCHRP 21-04 | Sealing Geotechnical Exploratory Holes to Protect the Subsurface Environment | Completed | |
NCHRP 21-05 | Determination of Unknown Subsurface Bridge Foundations | Completed | |
NCHRP 21-05(2) | Unknown Subsurface Bridge Foundation Testing | Completed | |
NCHRP 21-06 | Corrosion in the Soil Environment: Soil Resistivity and pH Measurements | Completed | |
NCHRP 21-07 | Development of Portable Scour Monitoring Equipment | Completed | NCHRP Report 515 Portable Scour Monitoring Equipment |
NCHRP 21-08 | Assessment of Innovative Load Testing of Deep Foundations | Completed | NCHRP Web-Only Document 84 Innovative Load Testing Systems |
NCHRP 21-09 | Intelligent Soil Compaction Systems | Completed | NCHRP Report 676 Intelligent Soil Compaction Systems |
NCHRP 21-10 | Manual on Subsurface Investigations -- Update | Final | The Final Report is available as NCHRP Web-Only Document 258 |
NCHRP 21-11 | Improved Test Methods and Practices for Characterizing Steel Corrosion Potential of Earthen Materials | Completed | |
NCHRP 22-05 | Develop Performance Standards and Hardware for Low Service Level Guardrail Systems | Completed | |
NCHRP 22-05A | Warrants for the Installation of Low Service Level Guardrail Systems | Completed | |
NCHRP 22-06 | Roadside Safety Design for Small Vehicles | Completed | |
NCHRP 22-07 | Update of "Recommended Procedures for Safety Performance Evaluation of Highway Appurtenances" | Completed | |
NCHRP 22-08 | Evaluation of Performance Level Selection Criteria for Bridge Railings | Completed | |
NCHRP 22-09 | Improved Procedures for Cost-Effectiveness Analysis of Roadside Safety Features | Completed | |
NCHRP 22-10 | Updated Materials for a Traffic Barrier/Small Sign Support Hardware Guide | Completed | |
NCHRP 22-11 | Evaluation of Roadside Features to Accommodate Vans, Mini-Vans, Pickup Trucks, & 4-Wheel Drive Vehicles | Completed | |
NCHRP 22-12 | Guidelines for the Selection, Installation, and Maintenance of Highway-Safety Features | Completed | |
NCHRP 22-12(02) | Selection Criteria and Guidelines for Highway Safety Features | Completed | |
NCHRP 22-12(03) | Recommended Guidelines for the Selection of Test Levels 2 Through 5 Bridge Rails | Completed | |
NCHRP 22-13 | Performance of Roadside Barriers | Completed | |
NCHRP 22-13(2) | Expansion and Analysis of In-Service Barrier Performance Data and Planning for Establishment of a Database | Completed | |
NCHRP 22-14 | Improvement of the Procedures for the Safety-Performance Evaluation of Roadside Features | Completed | |
NCHRP 22-14(02) | Improved Procedures for Safety-Performance Evaluation of Roadside Features | Completed | |
NCHRP 22-14(03) | Evaluation of Existing Roadside Safety Hardware Using Updated Criteria | Completed | |
NCHRP 22-14(04) | Testing of Cable Median Barrier in a Narrow Ditch | Completed | |
NCHRP 22-15 | Improving the Compatibility of Vehicles and Roadside Safety Hardware | Completed | |
NCHRP 22-16 | Development of an Improved Roadside Barrier System | Completed | |
NCHRP 22-17 | Recommended Guidelines for Curbs and Curb-Barrier Combinations | Completed | |
NCHRP 22-18 | Crashworthy Work-Zone Traffic Control Devices | Completed | |
NCHRP 22-19 | Aesthetic Concrete Barrier and Bridge Rail Designs | Completed | |
NCHRP 22-20 | Design of Roadside Barrier Systems Placed on MSE Retaining Walls | Completed | |
NCHRP 22-20(02) | Design Guidelines for TL-3 through TL-5 Roadside Barrier Systems Placed on Mechanically Stabilized Earth (MSE) Retaining Walls | Final | |
NCHRP 22-21 | Median Cross-Section Design for Rural Divided Highways | Final | |
NCHRP 22-22 | Placement of Traffic Barriers on Roadside and Median Slopes | Final | |
NCHRP 22-22(02) | Effectiveness of Traffic Barriers on Non-Level Terrain | Final | |
NCHRP 22-23 | Criteria for Restoration of Longitudinal Barriers | Completed | |
NCHRP 22-24 | Guidelines for Verification and Validation of Crash Simulations Used in Roadside Safety Applications | Completed | |
NCHRP 22-25 | Development of Guidance for the Selection, Use, and Maintenance of Cable Barrier Systems | Completed | |
NCHRP 22-26 | Factors Related to Serious Injury and Fatal Motorcycle Crashes with Traffic Barriers | Final | |
NCHRP 22-27 | Roadside Safety Analysis Program (RSAP) Update | Final | |
NCHRP 22-28 | Criteria for Restoration of Longitudinal Barriers, Phase II | Final | |
NCHRP 22-29 | Performance of Longitudinal Barriers on Curved, Superelevated Roadway Sections | Completed | The project was terminated due to the departure of several key staff. |
NCHRP 22-29A | Evaluating the Performance of Longitudinal Barriers on Curved, Superelevated Roadway Sections | Completed | |
NCHRP 22-29B | Evaluating the Performance of Longitudinal Barriers on Curved, Superelevated Off-Ramps | Completed | Publication decision pending. |
NCHRP 22-30 | In-Service Performance Evaluation of W-beam End Terminals | Completed | Completed - published as TRB Special Report 323 |
NCHRP 22-31 | Recommended Guidelines for the Selection and Placement of Test Levels 2 through 5 Median Barriers | Final | Published as NCHRP Research Report 996. |
NCHRP 22-32 | Development of Methods to Evaluate Side Impacts for Next Edition MASH | Completed | |
NCHRP 22-32A | Development of Methods to Evaluate Side Impacts – Phase II | Active | |
NCHRP 22-33 | Multi-State In-Service Performance Evaluations of Roadside Safety Hardware | Final | |
NCHRP 22-34 | Determination of Zone of Intrusion Envelopes under MASH Impact Conditions for Barrier Attachments | Final | Research is complete. Final Report is published as NCHRP Report 1018 |
NCHRP 22-35 | Evaluation of Bridge Rail Systems to Confirm AASHTO MASH Compliance | Final | Published as NCHRP Research Report 1024 |
NCHRP 22-36 | Synthesis of the Performance of Portable Concrete Barrier Systems | Final | |
NCHRP 22-36(01) | A Guideline for Connection Details Between Portable Concrete Barrier Segments | Final | NCHRP canceled this project and reallocated project funds to NCHRP Program |
NCHRP 22-37 | Development of a MASH Barrier to Shield Pedestrians, Bicyclists, and Other Vulnerable Users from Motor Vehicles | Final | |
NCHRP 22-38 | Development of MASH TL-3 Deflection Reduction Guidance for 31-inch Guardrail | Final | |
NCHRP 22-39 | Guardrail Performance at Various Offsets from Curb MASH TL-3 Applications | Final | |
NCHRP 22-40 | Investigation of Material Requirements for Highway Guardrail Specifications | Active | Phase I and II completed. Phase III research in progress. |
NCHRP 22-41 | Proposed Modification to AASHTO LRFD Bridge Design Specifications, Section 13—Railing | Final | Published as NCHRP Research Report 1109 |
NCHRP 22-42A | Impact Performance Assessment of Barrier Performance at High Speeds | Active | |
NCHRP 22-43 | Proposed AASHTO Guidelines for Implementation of MASH for Sign Supports, Breakaway Poles, and Work Zone Traffic Control Devices | Active | NCHRP Projects 22-43 and 17-105 are combined. NCHRP Project 22-43 is completed, and research is underway for NCHRP Project 17-105. |
NCHRP 22-44 | A Transportation Agency Data Collection Practice for Use with In-Service Performance Evaluations (ISPEs) | Final | |
NCHRP 22-45 | Informing the Selection of Countermeasures by Evaluating, Analyzing, and Diagnosing Contributing Factors that Lead to Crashes | Final | Research completed |
NCHRP 22-46 | Human Factors Guidelines for Road Systems, Proposed 4th Edition | Completed | |
NCHRP 22-47A | Incorporating Driver Behavior and Characteristics into Safety Prediction Methods | Active | Research in progress |
NCHRP 22-48 | Development of Crash Prediction Models for Short-Term Durations | Final | Research is complete. Published as NCHRP research Report 1073 |
NCHRP 22-49 | The Effect of Vehicle Mix on Crash Frequency and Crash Severity | Final | Research is complete. Final report and guide published as NCHRP Research Report 1103 and NCHRP WOD 393, respectively |
NCHRP 22-50 | Crashworthiness of Roadside Hardware on Curbed Roadways | Active | |
NCHRP 22-51 | Impact of Soil Stiffness on the Performance of Crash Testing and Roadside Safety | Active | Research in Progress |
NCHRP 22-52 | Development of a Crashworthy Tangent End Treatment for Low-Speed and Curbed Roadways | Active | |
NCHRP 22-53 | Delineation of Linear Roadside Hardware Systems and Roadside Obstacles | Active | |
NCHRP 22-54 | MASH Hardware Evaluation with New Proposed Test Vehicles | Active | |
NCHRP 22-55 | Implementation of MASH Surrogate Test Vehicles for Sign Supports, Breakaway Poles, and Work Zone Traffic Control Devices | Active | |
NCHRP 22-56 | Development of Non-proprietary Prefabricated Solutions for Concrete Barrier Systems for Accelerated Bridge Construction | Active | Research In Progress |
NCHRP 22-57 | Procedures for Development of MASH Full-Scale Test Matrices for Additional Roadside Safety Devices | Active | |
NCHRP 22-58 | National In-Service Performance Evaluation Guidelines for Defining Acceptable Roadside Safety Hardware | Active | |
NCHRP 22-59 | Safety Risks of Occupant Compartment Damage During Crashes | Active | Research in progress |
NCHRP 22-60 | Guidelines for Crash Testing Roadside Safety Hardware for Motorcycles | Active | |
NCHRP 22-61 | Crashworthiness of Roadside Hardware Impacted by Battery Electric Vehicles | Active | |
NCHRP 22-62 | Tool for Estimating the Deflection of Temporary Traffic Barriers with Reduced Impact Angles | Active | |
NCHRP 22-63 | Verification and Validation Guidelines to Use Computer Simulation as an Alternative to Full-scale Crash Testing | Pending | |
NCHRP 22-64 | Method for Using ISPEs in Crash-Testing Protocols | RFP | |
NCHRP 22-65 | Examination of Current U.S. and EU Crash Test Evaluation Criteria for Sign and Luminaire Support Structures and Work Zone Devices | RFP | |
NCHRP 22-66 | Development of Critical Impact Point and Impact Angle Guidance for the Manual for Assessing Safety Hardware (MASH) | Anticipated | In development |
NCHRP 22-67 | Investigation and Validation of V-Ditch Traversability Related to Crash Testing Cable Barrier Systems | RFP | |
NCHRP 23-01 | Assessing and Communicating the Economic and Quality of Life Benefits of Transportation Infrastructure Investment | Final | |
NCHRP 23-02 | Guidelines on Collaboration and Information Security for State DOTs | Final | |
NCHRP 23-03 | Guidelines for State Transportation Agency Chief Executive Officers on Cybersecurity Issues and Protection Strategies | Final | Final deliverables are published as NCHRP WOD 355, Volumes 1 and 2 |
NCHRP 23-04 | Statewide Insurance Pooling for Public Transit | Final | |
NCHRP 23-05 | Guidance for Training and Certification of Construction Inspectors for Transportation Infrastructure | Final | |
NCHRP 23-06 | A Guide to Computation and Use of System Level Valuation of Transportation Assets | Final | |
NCHRP 23-07 | Effective Methods for Setting Transportation Performance Targets | Final | |
NCHRP 23-08 | A Guide for Incorporating Maintenance Costs into a Transportation Asset Management Plan | Final | |
NCHRP 23-09 | Scoping Study to Develop the Basis for a Highway Standard to Conduct an All-Hazards Risk and Resilience Analysis | Final | |
NCHRP 23-10 | Evaluation and Synthesis of Connected Vehicle Communication Technologies | Final | |
NCHRP 23-11 | Transportation Emergency Management and Security Summit and Exchange | Active | |
NCHRP 23-12 | Artificial Intelligence Opportunities for State and Local DOTs – A Research Roadmap | Final | |
NCHRP 23-13 | Transportation Research Related to COVID-19 | Active | Individual task hyperlinks are available. |
NCHRP 23-13(01) | Telecommuting, Remote Work, and Hybrid Schedules: Managing the Shift to a Flexible Work Future | Final | |
NCHRP 23-13(02) | Employee Safety during COVID-19 | Final | |
NCHRP 23-13(03) | Guide on Truck Rest and Service Areas for Critical Supply Chain Delivery | Pending | Contract pending at this time. |
NCHRP 23-13(04) | Scoping Supply Chain Challenges and Solutions amid COVID-19 | Active | Research is progress. |
NCHRP 23-13(05) | Regulatory Relief of Commercial Vehicle Weight Requirements for Emergency Transportation of Critical Commodities | Final | |
NCHRP 23-13(06) | Assessing the Equity and Workforce Mobility Implications of the Expansion of E-Commerce and Direct-to-Consumer Delivery Services | Completed | Final deliverables pending |
NCHRP 23-14 | Research Roadmap for Knowledge Management | Completed | |
NCHRP 23-15 | Guidance on Risks Related to Emerging and Disruptive Transportation Technologies | Completed | |
NCHRP 23-16 | Implementing and Leveraging Machine Learning at State Departments of Transportation | Final | |
NCHRP 23-17 | Assessing and Measuring the Business Value of Knowledge Management | Active | |
NCHRP 23-18 | Incorporating Knowledge Management into DOT Business Practices | Final | This project has been combined with NCHRP 23-21 and is being conducted as NCHRP 23-17 |
NCHRP 23-19 | Practices for Transportation Agency Procurement and Management of Advanced Technologies | Active | Research in progress. |
NCHRP 23-20 | Guidebook for Implementation of UAS Operational Capabilities | Completed | The final deliverables have been received. A publication decision is pending. |
NCHRP 23-21 | Enabling Knowledge Management through Leadership Strategy and Culture | Final | This project has been combined with NCHRP 23-18 and is being conducted as NCHRP 23-17 |
NCHRP 23-22 | Alternative Project Delivery Methods: Assessing and Allocating Risk to Increase Competition | Active | |
NCHRP 23-23 | Data Governance Design and Implementation — Links Between Governance Approaches and Performance Effects in DOTs | Final | |
NCHRP 23-24 | Methods to Allow Agencies to Incorporate Quantitative Risk Assessment at Project and Network Level | Active | Research is progress. |
NCHRP 23-25 | Architecture for an Information System for Reporting and Sharing Truck Regulatory Requirements Data | Active | |
NCHRP 23-26 | Measuring Impacts and Performance of State DOT Resilience Efforts | Active | Research in progress. |
NCHRP 23-27 | Strategies for Developing and Using Data Ontologies for Data-Driven Decision-Making | Active | Research in progress |
NCHRP 23-28 | Planning for 4.9 GHz Spectrum Changes — What Transportation Agencies Need to Know | Active | Research in progress |
NCHRP 23-29 | Transportation Enterprise Data Warehouse Implementation Guide | Active | Research in progress. |
NCHRP 23-30 | Strategies to Improve Application of Research Results in the Research Life Cycle | Active | |
NCHRP 23-31 | Strategies to Foster Implementation of Knowledge Management | Final | The project was cancelled on 11-17-23. |
NCHRP 23-31A | Strategies to Foster the Implementation of Knowledge Management | Active | |
NCHRP 23-32 | Transportation Asset Risk and Resilience | Active | Research In Progress |
NCHRP 23-33 | Managed Retreat To Address Extreme Weather, Natural Hazards, and Climate Impacts | Active | Research is progress. |
NCHRP 23-34 | Performance Measures for Community-Centered Transportation Outcomes: A Guide | Pending | A research agency has been selected for the project. The contracting process is underway. |
NCHRP 23-35 | A Guide for Program-Level Risk Management Performance Metrics | Active | Research in progress |
NCHRP 23-36 | Development of a Knowledge Capture Toolkit for State DOTs | Active | |
NCHRP 23-37 | Integrating Performance Management, Risk Management, and Process Improvement: A Guide | Active | |
NCHRP 23-38 | Incorporating Risk Management into Roadway Infrastructure Maintenance Practices | Active | |
NCHRP 23-39 | A Guide to Developing Construction Inspector Career Path Programs | Pending | |
NCHRP 23-40 | Optimizing Maintenance Technician Staffing Levels for Highway Maintenance Fleets | Active | |
NCHRP 23-41 | Using Emerging and Established Technologies for Asset Management: A Guide | Active | Research in Progress |
NCHRP 23-42 | Scoping Study to Identify Curriculum Development Needs for Workforce Development in Transportation Asset Management | Anticipated | In development |
NCHRP 23-43 | Build America Buy America Requirements in Utility Relocations: A Guide for Transportation Agencies | RFP | |
NCHRP 23-44 | Improving Relationships Between DOTs and Utility Companies | Pending | |
NCHRP 23-45 | A Knowledge Management Manual for Transportation Agencies | Pending | |
NCHRP 23-46 | AI Integration and Workforce Transformation for State DOTs | RFP | |
NCHRP 23-47 | Guidelines for Pavement Preventive Maintenance Inspector Training | RFP | |
NCHRP 23-48 | A Guide to Assess, Measure, and Communicate the Public Value of Transportation | RFP | |
NCHRP 23-49 | Anticipatory Knowledge Delivery for Transportation Agencies | RFP | |
NCHRP 24-03 | Laboratory Evaluation of Piles Installed with Vibratory Drivers | Completed | |
NCHRP 24-04 | Load Factor Design Criteria for Highway Structure Foundations | Completed | |
NCHRP 24-05 | Downdrag on Bitumen-Coated Piles | Completed | |
NCHRP 24-06 | Expert System for Stream Stability and Scour Evaluation | Completed | NCHRP Report 426 CAESAR: An Expert System for Evaluation of Scour and Stream Stability |
NCHRP 24-07 | Countermeasures to Protect Bridge Piers from Scour | Completed | |
NCHRP 24-07(2) | Countermeasures to Protect Bridge Piers from Scour | Completed | NCHRP Report 593 Countermeasures to Protect Bridge Piers from Scour |
NCHRP 24-08 | Scour at Bridge Foundations: Research Needs | Completed | |
NCHRP 24-09 | Static and Dynamic Lateral Loading of Pile Groups | Completed | |
NCHRP 24-10 | Thermally Sprayed Metallic Coatings to Protect Steel Pilings | Completed | |
NCHRP 24-11 | Guidelines for Geofoam Applications in Embankment Projects | Completed | NCHRP Report 529 Guideline and Recommended Standard for Geofoam Applications in Highway Embankments and Web-Only Document 65 Geofoam Applications in the Design and Construction of Highway Embankments |
NCHRP 24-11(02) | Guidelines for Geofoam Applications in Slope Stability Projects | Completed | Research Results Digest. 380: Guidelines for Geofoam Applications in Slope Stability Projects |
NCHRP 24-12 | Controlled Low-Strength Material For Backfill, Utility Bedding, Void Fill, and Bridge Approaches | Completed | |
NCHRP 24-12(01) | Controlled Low-Strength Material For Backfill, Utility Bedding, Void Fill, and Bridge Approaches | Completed | |
NCHRP 24-13 | Evaluation of Metal Tensioned Systems in Geotechnical Applications | Completed | |
NCHRP 24-14 | Scour at Contracted Bridge Sites | Completed | NCHRP Web-Only Document 83 Scour at Contracted Bridges |
NCHRP 24-15 | Complex Pier Scour and Contraction Scour in Cohesive Soils | Completed | NCHRP Report 516 Pier and Contraction Scour in Cohesive Soils |
NCHRP 24-15(2) | Abutment Scour in Cohesive Materials | Completed | An unedited, completed final report for this project has been posted on the web with a link to it in the “Product Availability” section of this page. For more information see the “Status” section of this page. |
NCHRP 24-16 | Methodology for Predicting Channel Migration | Completed | NCHRP Report 533 Handbook for Predicting Stream Meander Migration. |
NCHRP 24-17 | LRFD Deep Foundation Design | Completed | |
NCHRP 24-18 | Countermeasures to Protect Bridge Abutments from Scour | Completed | Terminated due to PI relocation. |
NCHRP 24-18A | Countermeasures to Protect Bridge Abutments from Scour | Completed | NCHRP Report 587 Countermeasures to Protect Bridge Abutments from Scour. |
NCHRP 24-19 | Environmentally Sensitive Channel- and Bank-Protection Measures | Completed | NCHRP Report 544 Environmentally Sensitive Channel- and Bank-Protection Measures |
NCHRP 24-20 | Prediction of Scour at Bridge Abutments | Completed | An unedited, completed final report for this project has been posted on the web with a link to it in the “Product Availability” section of this page. For more information see the “Status” section of this page. |
NCHRP 24-20(02) | Evaluation of Abutment-Scour Equations from NCHRP Projects 24-15(2) and 24-20 Using Field Data | Completed | Completed. An uncorrected draft, as submitted by the Contractor, is posted on line with a link in the Product Availability section at the bottom of this page. |
NCHRP 24-21 | LRFD Soil-Nailing Design and Construction Specifications | Completed | NCHRP Report 701: Proposed LRFD Specifications for Soil Nailing Design and Construction. |
NCHRP 24-22 | Selecting Backfill Materials for MSE Retaining Walls | Completed | Completed. An uncorrected draft, as submitted by the Contractor, will be posted on line with a link in the product availability section at the bottom of this page. |
NCHRP 24-23 | Riprap Design Criteria, Specifications, and Quality Control | Completed | NCHRP Report 568 Riprap Design Criteria, Recommended Specifications, and Quality Control. |
NCHRP 24-24 | Criteria for Selecting Numeric Hydraulic Modeling Software | Completed | NCHRP Web-Only Document 106 Criteria for Selecting Hydraulic Models |
NCHRP 24-25 | Guidelines for Risk-Based Management of Bridges with Unknown Foundations | Completed | NCHRP Web-Only Document 107 Risk-Based Management Guidelines for Scour at Bridges with Unknown Foundations |
NCHRP 24-26 | Effects of Debris on Bridge-Pier Scour | Completed | NCHRP Report 653: Effects of Debris on Bridge Pier Scour |
NCHRP 24-27(01) | Evaluation of Bridge Scour Research: Pier Scour Processes and Predictions | Completed | The project final report is available as NCHRP Web-Only Document 175. |
NCHRP 24-27(02) | Evaluation of Bridge-Scour Research: Abutment and Contraction Scour Processes and Predictions | Completed | The project final report is available as NCHRP Web-Only Document 181. |
NCHRP 24-27(03) | Evaluation of Bridge-Scour Research: Geomorphic Processes and Predictions | Completed | The project final report is available as NCHRP Web-Only Document 177. |
NCHRP 24-28 | LRFD Metal Loss and Service-Life Strength Reduction Factors for Metal-Reinforced Systems in Geotechnical Applications | Completed | The project final report is available as NCHRP Report 675. |
NCHRP 24-29 | Scour at Bridge Foundations on Rock | Completed | NCHRP Report 717: Scour at Bridge Foundations on Rock |
NCHRP 24-30 | Design Guidelines for Increasing the Lateral Resistance of Highway Bridge Pile Foundations by Improving Weak Soils | Final | |
NCHRP 24-31 | LRFD Design and Construction of Shallow Foundations for Highway Bridge Structures | Final | |
NCHRP 24-32 | Scour at Wide Piers and Long Skewed Piers | Completed | |
NCHRP 24-33 | Development of Design Methods for In-Stream Flow Control Structures | Final | Completed. Published as NCHRP Report 795. |
NCHRP 24-34 | Risk-Based Approach for Bridge Scour Prediction | Final | |
NCHRP 24-35 | Guidelines for Certification and Management of Flexible Rockfall Protection Systems | Completed | Completed. Published as NCHRP Report 823 |
NCHRP 24-36 | Scour at the Base of Retaining Walls and Other Longitudinal Structures | Final | |
NCHRP 24-37 | Combining Individual Scour Components to Determine Total Scour | Final | Final Research Report is available online as NCHRP Web-Only Document 249 |
NCHRP 24-38 | Development of Bridge Foundation Movement Criteria-- Phase I | Final | NCHRP terminated the awarded contract; The remaining work is completed under NCHRP Project 12-103 |
NCHRP 24-39 | Evaluation and Assessment of Environmentally Sensitive Stream Bank Protection Measures | Completed | Completed. Published as NCHRP Report 822. |
NCHRP 24-40 | Design Hydrology for Stream Restoration and Channel Stability at Stream Crossings | Final | |
NCHRP 24-41 | Defining the Boundary Conditions for Composite Behavior of Geosynthetic Reinforced Soil (GRS) Structures | Final | NCHRP Web-Only Document 260 is now available. |
NCHRP 24-42 | Underwater Installation of Filters Systems for Scour and Other Erosion Control Countermeasures | Final | The final report will be published in August 2018 |
NCHRP 24-43 | Relationship Between Erodibility and Properties of Soils | Final | NCHRP Report 915 is now available. |
NCHRP 24-44 | Guidelines for Managing Geotechnical Risks in Design-Build Projects | Final | |
NCHRP 24-45 | Evaluating Mechanical Properties of Earth Material During Intelligent Compaction | Final | NCHRP Report 933 is now available. |
NCHRP 24-46 | Development of an Implementation Manual for Geotechnical Asset Management for Transportation Agencies | Final | NCHRP Research Report 903 Volumes 1 and 2 available. |
NCHRP 24-47 | Revised Clear-Water and Live-Bed Contraction Scour Analysis | Final | Research is complete. Published as Research Report NCHRP 971 and WOD 294 Training Manual. |
NCHRP 24-48 | Develop a Formula for Determining Scour Depth around Structures in Gravel-bed Rivers | Final | Final report published as NCHRP Research Report 1031. |
NCHRP 24-49 | Guidelines for Selection and Application of Manning’s Roughness Values in Two-Dimensional Hydraulic Models | Final | The Final Report is published as NCHRP Research Report 1077 |
NCHRP 24-50 | Rewrite of the AASHTO Drainage Manual | Completed | Publication decision pending. |
NCHRP 24-51 | Effects of Construction Installation Methods on the Design and Performance of Drilled Shaft Foundations | Active | Research in progress. |
NCHRP 24-52 | Guidelines for Resilient Erosion- and Sediment-Control Practices | Active | Research in progress |
NCHRP 25-02 | Predicting Stop-and-Go Traffic Noise Levels | Completed | |
NCHRP 25-03 | Guidelines for the Development of Wetland Replacement Areas | Completed | |
NCHRP 25-04 | Determining Economic Impacts on Adjacent Businesses Due to Restricting Left Turns | Completed | |
NCHRP 25-05 | Remote Sensing and Other Technologies for the Identification and Classification of Wetlands | Completed | |
NCHRP 25-06 | Intersection Air Quality Modeling | Completed | |
NCHRP 25-07 | Improving Transportation Data for Mobile Source Emissions Estimates | Completed | |
NCHRP 25-08 | Impact of Highway Capacity Improvements on Air Quality and Energy Consumption | Completed | |
NCHRP 25-09 | Environmental Impact of Construction and Repair Materials on Surface and Ground Waters | Completed | |
NCHRP 25-09(01) | Environmental Impact of Construction and Repair Materials on Surface and Ground Waters -- Outreach and Training | Completed | |
NCHRP 25-10 | Estimating the Indirect Effects of Proposed Transportation Projects | Completed | |
NCHRP 25-10(2) | Desk Reference for Estimating the Indirect Effects of Proposed Transportation Projects | Completed | |
NCHRP 25-11 | Development of a Modal-Emissions Model | Completed | |
NCHRP 25-12 | Wet Detention Pond Design for Highway Runoff Pollution Control | Completed | Report not published. |
NCHRP 25-13 and 25-13(2) | Assessments of Impacts of Bridge Deck Runoff Contaminants on Receiving Waters | Completed | |
NCHRP 25-14 | Heavy-Duty Vehicle Emissions | Completed | |
NCHRP 25-15 | Short-Term Monitoring for Compliance with Air Quality Standards | Final | Completed and published as NCHRP Report 479 |
NCHRP 25-16 | Guidance for Selecting Compensatory Wetland Mitigation Options | Completed | |
NCHRP 25-17 | Transportation Effects of the 1997 Changes to the National Ambient Air Quality Standards | Final | Completed --- Agency report available on request |
NCHRP 25-18 | Particulate-Matter (PM2.5 and PM10) Apportionment for On-Road Mobile Sources | Final | |
NCHRP 25-19 | Evaluation of Methods, Tools, and Techniques to Assess the Social and Economic Effects of Transportation Projects | Completed | |
NCHRP 25-20 | Management of Runoff from Surface Transportation Facilities--Synthesis and Research Plan | Completed | |
NCHRP 25-20(01) | Evaluation of Best Management Practices for Highway Runoff Control | Completed | |
NCHRP 25-20(02) | Identification of Research Needs Related to Highway Runoff Management | Completed | |
NCHRP 25-21 | Predicting Short-Term and Long-Term Air Quality Effects of Traffic-Flow Improvement Projects | Final | |
NCHRP 25-22 | Technologies to Improve Consideration of Environmental Concerns in Transportation Decisions | Completed | Report available as CRP-CD-14 |
NCHRP 25-22(02) | Technologies to Improve Consideration of Environmental Concerns in Transportation Decisions | Final | |
NCHRP 25-23 | Environmental Information Management and Decision Support System for Transportation | Completed | |
NCHRP 25-23(2) | Software for an Environmental Information Management and Decision Support System | Completed | |
NCHRP 25-24 | Monitoring, Analyzing, and Reporting on the Environmental Streamlining Pilot Projects | Final | |
NCHRP 25-25 | Research for the AASHTO Committee on Environment and Sustainability | Final | |
NCHRP 25-25/Task 001 | Synthesis on Data Needs for EA and EIS Documentation | Completed | |
NCHRP 25-25/Task 002 | Transportation Impacts and 'Smart Growth' Initiatives | Completed | |
NCHRP 25-25/Task 003 | Assessment and Mitigation Strategies for Land Development Impacts of Transportation Improvements | Completed | |
NCHRP 25-25/Task 004 | Environmental Stewardship Practices, Policies, and Procedures for Road Construction and Maintenance | Completed | |
NCHRP 25-25/Task 005 | Assessing the Current State of the NEPA Environmental Review Process | Completed | |
NCHRP 25-25/Task 006 | Preparing State DOTs for Implementation of the 8-hour Ozone and PM2.5 Standards | Completed | |
NCHRP 25-25/Task 007 | Evaluation of Mobile Models: MOBILE 6.1, MOBILE 6.2 and MOBILE6/CNG | Completed | |
NCHRP 25-25/Task 008 | Developing Performance Data Collection Protocol for Stream Restoration | Completed | |
NCHRP 25-25/Task 009 | Use of Existing Data in Decision Making | Completed | Cancelled |
NCHRP 25-25/Task 010 | Alternative Mitigation Strategies/Early Mitigation: Streamlining and Achieving Net Benefits for the Natural Environment | Completed | |
NCHRP 25-25/Task 011 | Secondary/Indirect and Cumulative Effects Analysis | Completed | |
NCHRP 25-25/Task 012 | Design-Build Environmental Compliance Process and Level of Detail Required | Completed | |
NCHRP 25-25/Task 013 | Agency Use and Approach to FHWA Approved Programmatic Agreements | Completed | |
NCHRP 25-25/Task 014 | A Summary of Existing Research on Dam Removal Projects | Completed | |
NCHRP 25-25/Task 015 | Historic Bridges | Completed | |
NCHRP 25-25/Task 016 | State Transportation Agency Strategies to Address NPDES Phase II Requirements | Completed | |
NCHRP 25-25/Task 017 | Assessment of Greenhouse Gas Analysis Techniques for Transportation Projects | Completed | |
NCHRP 25-25/Task 018 | Recommended Approaches to Communicating Air Toxics Issues and Transportation Project-Related Analyses in NEPA Documents | Completed | |
NCHRP 25-25/Task 019 | Historic Bridge Rehabilitation / Replacement Decision Making | Completed | |
NCHRP 25-25/Task 020 | The Role of State DOTs in Support of Transit Oriented Development (TOD) | Completed | |
NCHRP 25-25/Task 021 | Assessment of Geophysical Remote Sensing Opportunities at State Departments of Transportation for Incorporation into Archaeological Investigations | Completed | |
NCHRP 25-25/Task 022 | Land Use Forecasting for Indirect Impacts Analysis | Completed | |
NCHRP 25-25/Task 023 | Environmental performance measurements related to transportation project planning, design, construction, maintenance and operations | Completed | |
NCHRP 25-25/Task 024 | Climate Change and U.S. Transportation | Completed | |
NCHRP 25-25/Task 025 | Modification and Amendment of Environmental Permits on Design-Build Projects | Completed | |
NCHRP 25-25/Task 026 | Integration of Charrette Processes into Project Planning | Final | Cancelled |
NCHRP 25-25/Task 027 | Project Management and NEPA | Completed | Completed |
NCHRP 25-25/Task 028 | Reevaluations of NEPA documents | Completed | |
NCHRP 25-25/Task 029 | Best Practices Library from the Environmental Stewardship Practices in Construction and Maintenance Compendium | Completed | |
NCHRP 25-25/Task 030 | Section 404 Permitting and Roadside Ditches as Jurisdictional Waters | Completed | Cancelled |
NCHRP 25-25/Task 031 | Cost Effective Tools for Achieving PM 2.5 Transportation Air Quality Conformity | Completed | Cancelled |
NCHRP 25-25/Task 032 | Linking Environmental Resource and Transportation Planning – The Current State of Practice | Final | This project is completed and results are available at the links below. |
NCHRP 25-25/Task 033 | National Register of Historic Places Eligibility | Completed | |
NCHRP 25-25/Task 034 | Streamlined Carbon Monoxide Hot Spot Screening / Modeling Tool | Completed | Cancelled |
NCHRP 25-25/Task 035 | Water Quality Analyses for NEPA Documents: Selecting Appropriate Methodologies | Completed | Completed |
NCHRP 25-25/Task 036 | Recurring Community Impacts | Final | The final report has been submitted to AASHTO |
NCHRP 25-25/Task 037 | Effective Organizational Structures and Management Practices for Achieving Environmental Stewardship in Transportation Agencies | Final | Final Report sent to AASHTO. |
NCHRP 25-25/Task 038 | Guide to Use of Tier I Environmental Impact Statements for Transportation Projects | Completed | The draft final report has been accepted and distributed to AASHTO. |
NCHRP 25-25/Task 039 | Improving Project Environmental Cost Estimates | Final | The project is completed and the final report has been submitted to AASHTO. |
NCHRP 25-25/Task 040 | New Noise Barrier Products & Noise Barrier Approval Research & Guidelines | Completed | Completed. |
NCHRP 25-25/Task 041 | Implementation of Community & Cultural Resource Commitments | Final | This project is completed and the final report has been submitted to AASHTO. |
NCHRP 25-25/Task 042 | Determine alternative calculations for fine particulate emission factors other than AP-42 applicable to calculate re-entrained dust on transportation projects | Final | The project has been completed and the final report submitted to AASHTO |
NCHRP 25-25/Task 043 | Guidance on legal sufficiency criteria for adequate cumulative and secondary impacts analysis in EIS documents | Final | The project has been completed and the final report submitted to AASHTO |
NCHRP 25-25/Task 044 | Development and Implementation of a Transportation and Climate Change Clearinghouse | Final | The clearinhouse has been completed and transferred to the U.S. DOT. |
NCHRP 25-25/Task 045 | Transportation Program Responses to Greenhouse Gas (GHG) Reduction Initiatives and Energy Reduction Programs | Final | The project has been completed and the final report submitted to AASHTO |
NCHRP 25-25/Task 046 | Compendium of Best Practices for Environmental Compliance and Stewardship at Transportation Maintenance Facilities | Final | The project has been completed and the final report submitted to AASHTO |
NCHRP 25-25/Task 047 | Compendium of Best Practices for Incorporating Environmental Commitments into Transportation Project Construction Contract Documents | Final | The project has been completed and the final report submitted to AASHTO. |
NCHRP 25-25/Task 048 | Compendium of Environmental Fieldwork Technologies | Final | The project has been completed and the final report submitted to AASHTO |
NCHRP 25-25/Task 049 | Effective Practices for Considering Historic Preservation in Transportation Planning and Early Project Development | Final | Completed and final report sent to AASHTO SCOE. |
NCHRP 25-25/Task 050 | Finding the Carrot Instead of the Stick - Incentive-based Approaches for Environmental Compliance | Final | The project has been completed and the final report submitted to AASHTO |
NCHRP 25-25/Task 051 | Asset Management of Environmental Mitigation Features | Final | The project has been completed and the final report submitted to AASHTO. |
NCHRP 25-25/Task 052 | Informational Requirements for Jurisdictional Determinations to be Issued by the Army Corps of Engineers (Corps) Under the Clean Water Act (CWA) | Final | The project has been completed and the final report submitted to AASHTO. |
NCHRP 25-25/Task 053 | Stormwater Treatment with Vegetated Buffers | Final | The project has been completed and the final report submitted to AASHTO. |
NCHRP 25-25/Task 054 | Evaluate Colorado's Area-wide Cumulative Effects Assessment (ACEA) Methodology as a Mechanism for Cumulative Impacts Analysis of Regional Transportation Plans | Final | The project has been completed and the final report submitted to AASHTO. |
NCHRP 25-25/Task 055 | Design, Organize and Implement a Training Program for Mainstreaming Environmental Stewardship and Enhancement Activities into Planning and Project Development | Final | The project has been completed and the final report submitted to AASHTO. |
NCHRP 25-25/Task 056 | Cost and Benefit of Transportation Specific MS4 and Construction Permitting | Final | Final report submitted to AASHTO SCOE |
NCHRP 25-25/Task 057 | Integrated State and Local Government Policy Approaches to Transportation and Climate | Final | Completed - Final Report sent to AASHTO |
NCHRP 25-25/Task 058 | Methods to Address Greenhouse Gas Emissions from Transportation Construction/Maintenance/Operations Activities | Final | Completed and submitted to AASHTO SCOE |
NCHRP 25-25/Task 059 | Evaluate the Interactions between Transportation-Related Particulate Matter, Ozone, Air Toxics, Climate Change, and Other Air Pollutant Control Strategies | Final | Final Report submitted to AASHTO SCOE. |
NCHRP 25-25/Task 060 | Increased Use of Environmentally Preferable, Non-Toxic Products to Reduce Costs, Liabilities, and Pollution at DOT Offices, Maintenance Facilities and Rest Stops | Final | Final Report submitted to AASHTO. |
NCHRP 25-25/Task 061 | Best Practices for Establishing and Maintaining Statewide Cultural Resource Databases at State DOTs | Final | Final Report submitted to AASHTO SCOE |
NCHRP 25-25/Task 062 | Improving the Effectiveness of Outreach to Traditional and Non-Traditional Groups by Integrating the Expertise of Existing and Emerging Citizen Coalitions into Transportation Analysis and Decision Making | Final | Final Report submitted to AASHTO SCOE |
NCHRP 25-25/Task 063 | Transportation Corridor Environmental Management Framework | Final | The project has been completed and the final report submitted to AASHTO |
NCHRP 25-25/Task 064 | Feasibility Study of Using Solar or Wind Power for Transportation Infrastructure | Final | Completed. Final Report Submitted to AASHTO SCOE. |
NCHRP 25-25/Task 065 | Synthesis of Greenhouse Gas Emission Inventory Methodologies for State Transportation Departments | Final | Completed. Final report submitted to AASHTO. |
NCHRP 25-25/Task 066 | Best Practices and Lessons Learned on the Preservation and Rehabilitation of Historic Bridges | Completed | Final report delivered to AASHTO SCOE |
NCHRP 25-25/Task 067 | Optimizing Conservation and Improving Mitigation Cost/Benefit | Final | Completed. Final Report submitted to AASHTO SCOE |
NCHRP 25-25/Task 068 | Implementing Measures to Reduce Highway Impacts on Habitat Fragmentation | Final | Completed and Final report submmited to AASHTO SCOE |
NCHRP 25-25/Task 069 | Identification of Tools and Techniques to Define Community Context as Part of the Transportation Project Planning and Development Process | Completed | Final Report submitted to AASHTO SCOE |
NCHRP 25-25/Task 070 | Assessment of Quantitative Mobile Source Air Toxics in Environmental Documents | Completed | Completed and report submitted to AASHTO SCOE |
NCHRP 25-25/Task 071 | Templates for Project-Level Analyses Using MOVES and AERMOD | Completed | Completed and report submitted to AASHTO SCOE |
NCHRP 25-25/Task 072 | Current Practices to Address Construction Vibration and Potential Effects to Historic Buildings Adjacent to Transportation Projects | Completed | Completed and report submitted to AASHTO SCOE |
NCHRP 25-25/Task 073 | Improved Environmental Performance of Highway Maintenance | Completed | Completed and final report submitted to AASHTO SCOE |
NCHRP 25-25/Task 074 | Meeting the New EPA Effluent Limitations Guideline for Construction Site Discharge Turbidity: Effectiveness of Different Turbidity Control Systems and Monitoring Methods | Completed | Completed and submitted to AASHTO SCOE |
NCHRP 25-25/Task 075 | Nationwide Evaluation of Transfer of Compensatory Wetland Creation Sites for Transportation Projects to Private Conservation Organizations or Government Conservation Agencies | Completed | Completed. Report Submitted to AASHTO SCOE |
NCHRP 25-25/Task 076 | Synthesis of Climate Change and Transportation Research Efforts at State DOTs, State Universities, and the Federal Level | Final | Completed. Final Report submitted to AASHTO SCOE. |
NCHRP 25-25/Task 077 | Strategic Options of Inventorying and Updating Environmental Guidance and Links | Completed | Completed and final report submitted to AASHTO SCOE |
NCHRP 25-25/Task 078 | Programmatic Agreements for Project-Level AirQuality Analyses Using MOVES, CAL3QHC/R and AERMOD | Completed | Completed--final deliverables available for AASHTO use |
NCHRP 25-25/Task 079 | Successful Practices for Effective Tribal Consultation | Completed | Completed and report submitted to AASHTO SCOE |
NCHRP 25-25/Task 080 | Potential Use of Social Media Impact in the NEPA Process | Completed | Report completed and submitted to AASHTO SCOE |
NCHRP 25-25/Task 081 | Federal Compliance for Projects Utilizing Alternative Funding Strategies | Completed | Completed and report submitted to AASHTO SCOE |
NCHRP 25-25/Task 082 | Permeable Shoulders with Stone Reservoirs | Completed | Completed and report submitted to AASHTO SCOE |
NCHRP 25-25/Task 083 | Current Practice of Post- Construction Structural Stormwater Control | Completed | Completed and final report submitted to AASHTO SCOE |
NCHRP 25-25/Task 084 | Development of Construction Guidelines for Wildlife Fencing and Associated Escape and Lateral Access Control Measures | Completed | Final deliverable available for AASHTO use |
NCHRP 25-25/Task 085 | Nutrient (Nitrogen/Phosphorous) Management and Source Control | Completed | Final deliverables available for AASHTO use |
NCHRP 25-25/Task 086 | Toxicological Effects of Chloride Based Deicers in the Natural Environment | Completed | Completed |
NCHRP 25-25/Task 087 | Coordination of Section 106 and Long Range Transportation Planning | Completed | Final deliverables available for AASHTO use |
NCHRP 25-25/Task 088 | Giving Away the Bridge: A National Synthesis of on Transferring Ownership of Historic Bridges | Completed | Final deliverables available for AASHTO use |
NCHRP 25-25/Task 089 | Establishing Representative Background Concentrations for Quantitative Hot-spot Analyses for Particulate Matter | Completed | Final deliverables available for AASHTO use |
NCHRP 25-25/Task 090 | Application of Geographic Information Systems (GIS) for Historic Properties | Final | |
NCHRP 25-25/Task 091 | Synthesis of Transportation Exclusions to Section 106 Review | Completed | Final deliverables available for AASHTO use |
NCHRP 25-25/Task 092 | Transferability of Post-Construction Stormwater Quality BMP Effectiveness Studies | Completed | Completed--Final deliverables available for AASHTO use |
NCHRP 25-25/Task 093 | Long-Term Construction and Maintenance Cost Comparison for Road Stream Crossing Hydraulic Design vs. Bankfull Width Design | Final | |
NCHRP 25-25/Task 094 | Integrating Climate Change and Extreme Weather Into Transportation Asset Management Plans | Final | |
NCHRP 25-25/Task 095 | SCOE Strategic Plan and Research Plan for SCOE Areas of Interest | Completed | Completed--Final deliverable available for AASHTO use |
NCHRP 25-25/Task 096 | Quick Reference Guide for Traffic Modelers for Generating Traffic and Activity Data for Project-Level Air Quality Analyses | Final | |
NCHRP 25-25/Task 097 | Historic Roads: A Synthesis of Identification and Evaluation Practices | Final | |
NCHRP 25-25/Task 098 | Practical Guide for Developing Effective Scopes of Work for the Geophysical Investigation of Cemeteries | Final | |
NCHRP 25-25/Task 099 | Lessons Learned from State DOT NEPA Assumption | Final | |
NCHRP 25-25/Task 100 | Compilation of Existing Data on Northern Long-Eared and Other Cave-Dwelling Bat Habitat and the Roadside Environment | Final | Project cancelled |
NCHRP 25-25/Task 101 | Stormwater Monitoring Program Goals, Objectives and Protocols for State Departments of Transportation | Final | |
NCHRP 25-25/Task 102 | Artificial Bat Roost Mitigation Designs and Standardized Monitoring Criteria | Final | |
NCHRP 25-25/Task 103 | Administration of Categorical Exclusions by State Departments of Transportation under NEPA | Final | |
NCHRP 25-25/Task 104 | Streamlining Carbon Monoxide Project-Level Air Quality Analyses with Programmatic Agreements | Final | |
NCHRP 25-25/Task 105 | A Guidebook for Communications between Transportation and Public Health Communities | Final | |
NCHRP 25-25/Task 106 | Highway Noise and Historic Properties: A National Review of Effects and Mitigation Practices | Final | |
NCHRP 25-25/Task 107 | Section 106 Delegation Programmatic Agreements: Review and Best Practices | Final | |
NCHRP 25-25/Task 108 | Creating Lookup Tables to Streamline the Determination of Emission Reductions for CMAQ Projects | Final | |
NCHRP 25-25/Task 109 | Successful Practices for Environmental Commitments in Public/Private Partnerships (P-3) and Design-Build (D-B) Contracts | Final | |
NCHRP 25-25/Task 110 | Review of Historic Property Identification Surveys and Strategies for Managing Post-World War II Housing in Transportation Projects | Final | |
NCHRP 25-25/Task 111 | Environmental Management System Perspectives For State DOTs | Final | |
NCHRP 25-25/Task 112 | Enhancing the International Stormwater BMP Database to Serve as a Highway Specific BMP Database | Final | Cancelled. |
NCHRP 25-25/Task 113 | Road Passages and Barriers for Small Terrestrial Wildlife: Summary and Repository of Design Examples | Final | |
NCHRP 25-25/Task 114 | Integrating Tribal Expertise into Processes to Identify, Evaluate, and Record Cultural Resources | Final | |
NCHRP 25-25/Task 115 | Estimates of Emissions Reductions from Future Fleet Changes for Use in Air Quality Models | Final | |
NCHRP 25-25/Task 116 | Potential Section 106 Exempted Categories or Program Comments for Federal Highway Administration Projects: National Streamlining Opportunities | Final | |
NCHRP 25-25/Task 117 | Valuing Wildlife Crossing Enhancements for Mitigation Credits | Final | |
NCHRP 25-25/Task 118 | Context-Sensitive Design Options for Workhorse Bridges in Rural Historic Districts | Final | |
NCHRP 25-25/Task 119 | Enhancing the International Stormwater BMP Database to Serve as a Highway Specific BMP Database | Final | |
NCHRP 25-25/Task 120 | Use of the State Department of Transportation Portal to the International Stormwater BMP Database | Final | |
NCHRP 25-25B | Research for the AASHTO Standing Committee on the Environment | Active | |
NCHRP 25-27 | Evaluation of the Use and Effectiveness of Wildlife Crossings | Completed | |
NCHRP 25-28 | Predicting and Mitigating Hydroacoustic Impacts on Fish from Pile Installation | Completed | The final report has been published as Research Results Digest 363. |
NCHRP 25-29 | Developing Design and Management Guidelines for Historic Road Corridors | Completed | |
NCHRP 25-29A | Guidelines for Design and Management of Historic Roads | Completed | The project final report is available as NCHRP Web-Only Document 189. |
NCHRP 25-30 | Temporary Bridging to Avoid or Minimize Impacts to Waters and Wetlands During Highway Construction | Final | The results of this study have been published in NCHRP Research Results Digest 330 . |
NCHRP 25-31 | Guidelines for Evaluating and Selecting Modifications to Existing Roadway Drainage Infrastructure to Improve Water Quality in Ultra-Urban Areas | Completed | |
NCHRP 25-32 | Measuring and Removing Dissolved Metals from Storm Water in Highly Urbanized Areas | Completed | Research completed; to be published as NCHRP report 767 |
NCHRP 25-33 | Evaluating Methodologies for Visual Impact Assessments | Final | Final report published as Report 741 |
NCHRP 25-34 | Supplemental Guidance on the Application of FHWA's Traffic Noise Model (TNM) | Final | |
NCHRP 25-35 | Guidebook for Designing and Managing Rights-of-Way for Carbon Sequestration and Biomass Generation | Completed | Completed. Published as NCHRP Report 804 with CRP-CD-165 |
NCHRP 25-36 | Impacts of Land Use Strategies on Travel Behavior in Small Communities and Rural Areas | Final | Agency's Handbook is available as NCHRP Web-only Document 211 |
NCHRP 25-37 | A Watershed Approach to Mitigating Stormwater Impacts | Final | |
NCHRP 25-38 | Input Guidelines for Motor Vehicle Emissions Simulator Model | Final | Final deliverables are available as individual volumes of NCHRP Web-only Document 210 |
NCHRP 25-39 | Environmental Performance Measures for State Departments of Transportation | Final | |
NCHRP 25-40 | Long-Term Performance and Life-Cycle Costs of Stormwater Best Management Practices | Completed | Final report published as NCHRP Report 792. |
NCHRP 25-41 | Guidance for Achieving Volume Reduction of Highway Runoff in Urban Areas | Completed | |
NCHRP 25-42 | Bridge Stormwater Runoff Analysis and Treatment Options | Final | |
NCHRP 25-43 | Navigating Multi-Agency NEPA Processes to Advance Multimodal Transportation Projects | Final | |
NCHRP 25-44 | Field Evaluation of Reflected Noise from a Single Noise Barrier | Final | |
NCHRP 25-45 | Mapping Heavy Vehicle Noise Source Heights for Highway Noise Analysis | Completed | |
NCHRP 25-46 | Deploying Clean Truck Freight Strategies | Final | Published as NCHRP Report 862 |
NCHRP 25-47 | How to Measure and Communicate the Value of Access Management | Final | |
NCHRP 25-48 | Combined Interface for Project Level Air Quality Analysis | Final | |
NCHRP 25-49 | Development of a Highway Construction Noise Prediction Model | Final | Complete. Final report available on project webpage and FHWA website. |
NCHRP 25-50 | Prioritization Procedure for Proposed Road-Rail Grade Separation Projects along Specific Rail Corridors | Final | Published as NCHRP Report 901 |
NCHRP 25-51 | Limitations of the Infiltration Approach to Stormwater Management in the Highway Environment | Final | Published as NCHRP Research Report 922 |
NCHRP 25-52 | Meteorological Effects on Roadway Noise | Final | |
NCHRP 25-53 | Approaches for Determining and Complying with TMDL Requirements Related to Roadway Stormwater Runoff | Final | |
NCHRP 25-54 | Field Testing of BMPs Using Granulated Ferric Oxide Media to Remove Dissolved Metals in Roadway Stormwater Runoff | Final | |
NCHRP 25-55 | Assessment of Regulatory Air Pollution Dispersion Models to Quantify the Impacts of Transportation Sector Emissions | Final | |
NCHRP 25-56 | Methods for State DOTs to Reduce Greenhouse Gas Emissions from the Transportation Sector | Final | |
NCHRP 25-57 | Breaking Barriers: Alternative Approaches to Avoiding and Reducing Highway Traffic Noise Impacts | Final | |
NCHRP 25-58 | Commercial Properties from 1945 to 1980: Guidance for State DOTs and Their Partners for Historic Context Development, Identification, and Evaluation | Final | Project cancelled. |
NCHRP 25-59 | Pollinator Habitat Conservation Along Roadways | Final | |
NCHRP 25-60 | Watershed Approach to Mitigating Hydrologic Impacts of Transportation Projects | Final | |
NCHRP 25-61 | Development of On-Bridge Stormwater Treatment Practices | Final | |
NCHRP 25-62 | Improving the Efficiency and Consistency of Section 106 Compliance for State DOTs: Strategies for Project-Level Programmatic Agreements and Postwar Commercial Properties | Final | |
NCHRP 25-63 | Handbook on Deterring and Excluding Bats from Transportation Structures | Active | Research in progress |
NCHRP 25-64 | Considering Greenhouse Gas Emissions and Climate Change in Environmental Reviews: Resources for State DOTs | Final | Published as NCHRP WebResource 3 and NCHRP Web-Only Document 400 on 7/15/2024 |
NCHRP 25-65 | Preparing Successful No-Effect and No-Adverse-Effect Section 106 Determinations: A Handbook for Transportation Cultural Resource Practitioners | Completed | In publication process |
NCHRP 25-66 | Reviewing the REMEL Noise Database to Accommodate the Current Vehicle Fleet | Active | |
NCHRP 25-67 | Guide to Mitigation of Adverse Effects on Cultural Resources | Active | |
NCHRP 25-68 | Documenting and Verifying Environmental Commitments | Active | |
NCHRP 25-69 | Guide to Increasing and Sustaining Native Flora in Roadside Vegetation | Active | Research in progress |
NCHRP 25-70 | Evaluating Carbon Reduction in Project Selection and Planning | Pending | |
NCHRP 25-71 | Prevention and Control of Wildfires Through Roadside Vegetation Management | Pending | |
NCHRP 25-72 | Field Methods and Interlaboratory Tests to Establish the Accuracy and Precision of Measured Concentrations of Emerging Contaminants in Stormwater Runoff and Stormwater-Treatment System Effluent | Anticipated | In development |
NCHRP 25-73 | Successful Community Impact Strategies During the Construction of Projects | Anticipated | In development |
NCHRP 25-74 | Evaluating the Effects of Transportation Investments on Greenhouse Gas Emissions | RFP | |
NCHRP 25-75 | Simplified Methodology for Risk-Based Air Quality Assessments of NEPA Alternatives | Anticipated | In development |
NCHRP 70-01 | Private-Sector Provision of Congestion Data | Completed | |