| 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 | This project was 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 | Pending | Contract pending. |
| 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 | Completed | |
| 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 | Completed | To be published as NCHRP Research Report 1107. |
| NCHRP 15-69 | Utility Conflict Impacts During Highway Construction | Completed | Research is complete. To be published as NCHRP Research Report 1110 and NCHRP WOD 396 |
| 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 | This project was published as NCHRP Research Report 1022. |
| NCHRP 15-73 | Design Options to Reduce Turning Motor Vehicle – Bicycle Conflicts at Controlled Intersections | Active | Research underway |
| 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 | Completed | |
| NCHRP 15-76 | Designing for Target Speed | Completed | Inactive. To be continued as NCHRP 15-76(01) |
| 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 | Pending | |