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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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Materials

A Comparative Study of Machine Learning Classification for Color-Based Safety Vest Detection on Construction-Site Images

Detecting the safety vests is an important foundation for various applications in safety management and productivity measurement. The fluorescent yellow-green color and fluorescent orange-red color of … [Read more...] about A Comparative Study of Machine Learning Classification for Color-Based Safety Vest Detection on Construction-Site Images

Lidar for Maintenance of Pavement Reflective Markings and Retroreflective Signs

Pavement markings and signs are important traffic control devices used to guide and regulate traffic movement through visual information presented to motorists. Signs and markings are made with … [Read more...] about Lidar for Maintenance of Pavement Reflective Markings and Retroreflective Signs

ITD Shifts to Yellow

To improve employee safety, ITD has switched their old orange vests to new high-visibility yellow vests following employee recommendations. Links to videos that explain the switch and the new vests … [Read more...] about ITD Shifts to Yellow

Looking Deep into the Eyes: Green Light on TMAs Could be Another Option for DOTs

Truck-mounted attenuator (TMA) has been used as a countermeasure to help improve safety in mobile work zones. However, 139 TMA crashes occurred in Missouri from 2012 to 2017 with distracted driving … [Read more...] about Looking Deep into the Eyes: Green Light on TMAs Could be Another Option for DOTs

Evaluation of Green Lights on TMAs

The use of green versus traditional amber lights on Truck Mounted Attenuators (TMAs) was investigated to see if their use could help to improve safety in mobile work zones. Four light color … [Read more...] about Evaluation of Green Lights on TMAs

Orange Work Zone Pavement Marking Midwest Field Test

Roadway lanes are often repositioned to accommodate highway work operations, resulting in a need to alter pavement markings. Even the most effective methods for removing old pavement markings … [Read more...] about Orange Work Zone Pavement Marking Midwest Field Test

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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