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Work Zone Safety Information Clearinghouse

Library of Resources to Improve Roadway Work Zone Safety for All Roadway Users

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  • Topics of Interest
    • Advancing Nighttime Work Zone Safety
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Temporary Traffic Control

Merging Location in Work Zones: A Comparison of Slow and Fast Lane Closures

Lane closure operations in highway work zones use both slow lane closures (SLCs) and fast lane closures (FLC), requiring drivers to perform two different merging maneuvers. While the merging location … [Read more...] about Merging Location in Work Zones: A Comparison of Slow and Fast Lane Closures

Case Studies Documenting Lessons Learned and Identifying Opportunities for Maintenance of Traffic (MOT) Improvements

Over the past 18 months, the team has performed several dozen after-action reviews of interstate work zones and the associated maintenance of traffic (MOT). These after-action reports generally … [Read more...] about Case Studies Documenting Lessons Learned and Identifying Opportunities for Maintenance of Traffic (MOT) Improvements

Evaluation of Impacts Due to a Bridge Closure: A Case Study of the Mississippi River Bridges in Arkansas

The TRC 2303 report presents a comprehensive analysis of the impacts of bridge closures across the Mississippi River in Arkansas, focusing on four key crossings: I-40, I-55, HWY 49, and HWY 82. … [Read more...] about Evaluation of Impacts Due to a Bridge Closure: A Case Study of the Mississippi River Bridges in Arkansas

Improving Work Zone Management and Safety Through AI-Powered Connected Vehicle Data Analysis

This project designed, deployed, and validated a statewide platform for real-time incident detection, daily operations analysis, and data-driven support for smart work zone planning known as … [Read more...] about Improving Work Zone Management and Safety Through AI-Powered Connected Vehicle Data Analysis

Technical Brief on Connected Work Zones

Learn how connected work zone technologies are transforming roadway construction and maintenance operations through real-time data sharing, connected devices, and enhanced traveler communications. … [Read more...] about Technical Brief on Connected Work Zones

4-Hour Work Zone Flagger

The Work Zone Flagger training course is required for anyone who wants to work as a certified flagger in New York State. Flaggers are required in work zone traffic control areas to protect the … [Read more...] about 4-Hour Work Zone Flagger

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Copyright © 2026 American Road & Transportation Builders Association (ARTBA). The National Work Zone Safety Information Clearinghouse is a project of the ARTBA Transportation Development Foundation. It is operated in cooperation with the U.S. Federal Highway Administration and Texas A&M Transportation Institute. | Copyright Statement · Privacy Policy · Disclaimer
American Road and Transportation Builders Association Transportation Development Foundation, American Road and Transportation Builders Association U.S. Department of Transportation Federal Highway Administration Texas A&M Transportation Institute