Recent Publications

Improved Analysis of Two-Lane Highway Capacity and Operational Performance (NCHRP Web-Only Document 255)

Development of a Strategic Plan for the Subcommittee on Traffic Engineering (NCHRP 20-07/Task 370, Report delivered to Committee)

Practices in One-Lane Traffic Control on a Two-Lane Rural Highway (NCHRP Synthesis 525)

Design Guide for Low-Speed Multimodal Roadways (NCHRP Report 880)

Guidelines for Integrating Safety and Cost-Effectiveness into Resurfacing, Restoration, and Rehabilitation (3R) Projects (NCHRP Report 876)

Guidelines for Nighttime Visibility of Overhead Signs (NCHRP Report 828)

Traffic Signal Preemption at Intersections Near Highway-Rail Grade Crossings (NCHRP Synthesis 507)

Application of Pedestrian Crossing Treatments for Streets and Highways (NCHRP Synthesis 498)

A Performance-Based Geometric Design Process (NCHRP Report 839)

Guidelines for Implementing Managed Lanes (NCHRP Report 835)

Summary of Federal Laws Restricting Use of Highway Safety Data in Tort Litigation (NCHRP LRD 72)

Highway Capacity Manual, 6th Edition

Planning and Preliminary Engineering Guide to the Highway Capacity Manual (NCHRP Report 825)

Traffic Control Devices for Curves (NCHRP Web-Only Document pending, contractor's report available)

Practice of Rumble Strips and Rumble Stripes (NCHRP Synthesis 490)

Roundabout Practices (NCHRP Synthesis 488)

Estimating the Life-Cycle Cost of Intersection Designs (Excel(R) Spreadsheet and NCHRP Web Only Document 220)

Work Zone Speed Management (NCHRP Synthesis 482)

Proposed Update of the AASHTO Guide for the Planning, Design, and Operation of Pedestrian Facilities (NCHRP 15-45, Draft guide delivered to AASHTO)

Incorporating Truck Analysis into the Highway Capacity Manual(NCFRP Report 31)

Permanent Signs Mounted on Median Barriers (NCHRP Synthesis 465)

Potential MUTCD Criteria for Selecting the Type of Control for Unsignalized Intersections (NCHRP Web Only Document 213)

U.S. Bicycle Route Guide Signing (NCHRP 20-07/Task 350)

Pedestrian and Bicycle Transportation along Existing Roads (NCHRP Report 803)

Crash Experience Warrant for Traffic Signals (NCHRP Web Only Document 204)

Unsignalized Intersection Improvement Guide (Produced by NCHRP Project 03-104, hosted and maintained by the Institute of Transportation Engineers)

Recommended Bicycle Lane Widths for Various Roadway Characteristics (NCHRP Report 766)

Signal Timing Manual--Second Edition (NCHRP Report 812)

Design Guidance for Intersection Auxiliary Lanes (NCHRP Report 780)

Evaluating the Performance of Corridors with Roundabouts (NCHRP Report 772)     

Evaluation of the Flashing Yellow Arrow (FYA) Permissive Left Turn in Shared Yellow Signal Sections (NCHRP 20-07/Task 283)

Analysis of New Highway Lighting Technologies (NCHRP 20-07/Task 305)

Sharing Operations Data Among Agenices (NCHRP Synthesis 460)

Expediting Future Technologies for Enhancing Transportation System Performance (NCHRP Report 750, Volume 3)

Active Traffic Management for Arterials(NCHRP Synthesis 447)

Operations in the 21st Century DOT: Meeting Customer Expectations (SHRP 2 Reliability Presentation Guide)

Analyzing Driver Behavior Using Data from the SHRP 2 Naturalistic Driving Study (SHRP 2 Safety Project Brief)            

Traffic Enforcement Strategies for Work Zones (NCHRP Report 746)

A Transportation Guide for All-Hazards Emergency Evacuation (NCHRP Report 740)

Effect of MUTCD on Tort Liability of Government Transportation Agencies (NCHRP Legal Research Digest 63)

Train-the-Trainer Pilot Courses for Incident Responders and Managers (SHRP 2 Reliability Prepublication) 

Effectiveness of Different Approaches to Disseminating Traveler Information on Travel Time Reliability (SHRP 2 Reliability Prepublication)

Left-Turn Accommodations at Unsignalized Intersections (NCHRP Report 745)

Predicting the Initial Retroreflectivity of Pavement Markings from Glass Bead Quality (NCHRP Report 743)

Use of Transportation Asset Management Principles in State Highway Agencies (NCHRP Synthesis 439)

Understanding the Contributions of Operations, Technology, and Design to Meeting Highway Capacity Needs (SHRP 2 Capacity Prepublication)

Deployment, Use, and Effect of Real-Time Traveler Information Systems (NCHRP Web-Only Document 192)

Guidelines for Timing Yellow and All-Red Intervals at Signalized Intersections (NCHRP Report 731)

Human Factors Guidelines for Road Systems: Second Edition (NCHRP Report 600)

Effective Experiment Design and Data Analysis in Transportation Research (NCHRP Report 727)

Automated Enforcement for Speeding and Red Light Running (NCHRP Report 729)

Guidance for the Selection, Use, and Maintenance of Cable Barrier Systems (NCHRP Report 711)

Advanced Methods for Mobile Retroreflectivity Measurement on Pavement Marking (NCHRP IDEA Final Report)

Ongoing Projects (Year and Quarter are approximate for availability)

Impacts of Connected Vehicles and Automated Vehicles on State and Local Transportation Agencies (NCHRP 20-102, Ongoing)
             
Road Markings for Machine Vision (NCHRP 20-102(06), 2019 Q3)


Effectiveness of Work Zone Transportation Management Plan (TMP) Strategies (NCHRP 03-111, 2020 Q1)

Work Zone Speed Limits and Crash Data Practices (NCHRP 20-07/Task 354, 2020 Q4)   

Operational and Safety Considerations in Making Lane Width Decisions on Urban and Suburban Arterials (NCHRP 03-112, 2018 Q3)

Benefits of Adaptive Traffic Control Deployments--A Review of Evaluation Studies (NCHRP 20-07/Task 414, 2018 Q3)

Guidelines for Selecting Sign Sheeting Materials for AASHTO M268 (NCHRP 20-07/Task 374, 2018 Q2)

Operational and Reliability Impacts of Active Traffic Management Strategies (NCHRP 03-114, 2018 Q3)

Traffic Control Devices and Measures for Deterring Wrong Way Movements (NCHRP 03-117, 2018 Q3)

Proposed Update of the AASHTO Guide for the Development of Bicycle Facilities (NCHRP 15-60, 2017 Q4)

Design and Operations Guidance for Diverging Diamond Interchanges (NCHRP 03-113, 2018 Q4, Signal Information available soon)

Connected Road Classification System Development (NCHRP 20-24(112), 2018 Q3)

Decision-Making Guide for Traffic Signal Phasing (NCHRP 03-118, 2018 Q4)

Guidance to Improve Pedestrian and Bicycle Safety at Intersections (NCHRP 15-63, 2019 Q1)

Pedestrian and Bicycle Planning, Design, and Operational Issues with Alternative Intersections (NCHRP 07-25, 2019 Q3)

Road User Understanding of Bicycle Signal Symbol Indications (NCHRP 20-07/Task 420, 2019 Q3)

Performance-Based Management of Traffic Signals (NCHRP 03-122, 2019 Q1)

Proposed Practices for the Application of Dynamic Lane Use Control (NCHRP 03-123, 2019 Q1)

Evaluation of Change and Clearance Intervals Prior to the Flashing Yellow Arrow Permissive Left-Turn Indication (NCHRP 03-125, 2019 Q1)

Highway Capacity Manual Methodologies for Corridors Involving Freeways and Surface Streets (NCHRP 15-57, 2019 Q3)

Principles and Guidance for Presenting Drivers with Dynamic Information on Active Traffic Management (NCHRP 03-124, 2019 Q4)

Guidance for the Setting of Speed Limits (NCHRP 17-76, 2019 Q4)

Understanding and Communicating Reliability of Crash Prediction Models (NCHRP 17-78, 2020 Q1)

Safety Effects of Raising Speed Limits to 75 mph and Higher (NCHRP 17-79, 2020 Q2)

Tactile Walking Surface Indicators to Aid Wayfinding for Visually Impaired Travelers in Multimodal Travel (TCRP B-46, 2020 Q2)

Expansion of Human Factors Guidelines for Road Systems, Second Edition (NCHRP 17-80, 2019 Q4)

Operational Standards for Highway Infrastructure (NCHRP 03-126, 2019 Q1)

Cybersecurity of Traffic Management Systems (NCHRP 03-127, 2019 Q2)

Guidelines for Solid-State Roadway Lighting (NCHRP 05-22, 2019 Q4)

Arterial Weaving for Conventional and Alternative Intersections (NCHRP 15-66, 2019 Q2)

Guidance for Safe and Effective Temporary Traffic Control for Mobile Operations on Two-Lane Two-Way Roadways (NCHRP 03-132, 2019 Q4)

Traffic Signal Design and Operations Strategies for Non-Motorized Users (NCHRP 03-133, 2019 Q4)

Guide for Roundabouts (NCHRP 03-130, 2019 Q4)

Business Intelligence Techniques for Transportation Agency Decision Making (NCHRP 03-128, 2019 Q4)