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Use of Vehicle Probe and Cellular GPS Data by State Departments of Transportation  (2021)

Temporary Pavement Markings Placement and Removal Practices in Work Zones  (2021)

Recommended Guidelines for the Selection of Test Levels 2 Through 5 Bridge Railings  (2021)

Safety Prediction Methodology and Analysis Tool for Freeways and Interchanges  (2021)

Roadside Hardware Replacement Analysis: User Guide  (2021)

TR News September-October 2021: State of Emergency: What Transportation Learned From 9/11  (2021)

A Pandemic Playbook for Transportation Agencies  (2021)

Safety Performance of Part-Time Shoulder Use on Freeways, Volume 1: Informational Guide and Safety Evaluation Guidelines  (2021)

Reliability of Crash Prediction Models: A Guide for Quantifying and Improving the Reliability of Model Results  (2021)

Safety Performance of Part-Time Shoulder Use on Freeways, Volume 2: Conduct of Research Report  (2021)

Understanding and Communicating Reliability of Crash Prediction Models  (2021)

Selecting Ramp Design Speeds, Volume 2: Conduct of Research Report  (2021)

Investigating the Relationship of As-Constructed Asphalt Pavement Air Voids to Pavement Performance  (2021)

Enhancing Academic Programs to Prepare Future Airport Industry Professionals  (2021)

TR News March-April 2021: Virtual Event: TRB's 100th Annual Meeting  (2021)

Guidebook on Conducting Airport User Surveys and Other Customer Research  (2021)

Guide for Pedestrian and Bicyclist Safety at Alternative and Other Intersections and Interchanges  (2021)

Posted Speed Limit Setting Procedure and Tool: User Guide  (2021)

Development of a Comprehensive Approach for Serious Traffic Crash Injury Measurement and Reporting Systems  (2021)

Consensus Study Report

Data and Management Strategies for Recreational Fisheries with Annual Catch Limits  (2021)