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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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Safety Factors

Improved Business Driveway Delineation in Urban Work Zones

This report documents the efforts and results of a two-year research project aimed at improving driveway delineation in work zones. The first year of the project included a closed-course study to … [Read more...] about Improved Business Driveway Delineation in Urban Work Zones

Photometric Evaluation of Steady-Burn Warning Lights in Work Zones

This report documents the efforts and results of several photometric evaluations performed by researchers at the Texas A&M Transportation Institute to assess the performance of steady-burn warning … [Read more...] about Photometric Evaluation of Steady-Burn Warning Lights in Work Zones

Nighttime Highway Construction Illumination

The nighttime driving environment, consisting of roadway illumination, signs, vehicle lighting and markers, delineators and flashing lights, can be complex or even confusing for both pedestrians and … [Read more...] about Nighttime Highway Construction Illumination

Configuring Retroreflective Markings to Enhance the Night-Time Conspicuity of Road Workers

This study investigated whether the night-time conspicuity of road workers can be enhanced by positioning retroreflective strips on the moveable joints in patterns that convey varying degrees of … [Read more...] about Configuring Retroreflective Markings to Enhance the Night-Time Conspicuity of Road Workers

Can You See Me Now? Visibility in Work Zones at Night

37 percent of work zone fatalities occur at night. While it is important to have traffic control devices to properly warn motorists, it is also important for workers to be visible. This article … [Read more...] about Can You See Me Now? Visibility in Work Zones at Night

Impact of Work Zone Lighting on Driver’s Detection of Objects

Researchers conducted a closed-course study to evaluate the impact of work zone lighting upon the ability of drivers to detect low contrast objects and workers wearing high-visibility vests. Three … [Read more...] about Impact of Work Zone Lighting on Driver’s Detection of Objects

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Copyright © 2025 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