| 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 | Integrating the Use of New Software Subsystems and Software Within Evolving Traffic Management Systems | Anticipated | In development |
| NCHRP 03-153 | Audible Indications for Accessible Pedestrian Signals | Anticipated | In development |
| 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 | |