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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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Truck-Mounted Attenuators

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

Minimizing Worker Exposure in Highway Work Zones Through the Use of Positive Protection and Other Strategies – Grant Course

This comprehensive course explores the critical application of positive protection devices in highway work zones, offering participants a deep dive into current standards and practical guidance on … [Read more...] about Minimizing Worker Exposure in Highway Work Zones Through the Use of Positive Protection and Other Strategies – Grant Course

Can Self-Driving Equipment Make Work Zones Safer?

Warning signs, barriers, and truck-mounted attenuators (TMA) can reduce some of the risks workers face in highway work zones, but they cannot eliminate the hazards.  This past summer, Colorado … [Read more...] about Can Self-Driving Equipment Make Work Zones Safer?

Colorado Touts Nation’s First Deployed Driverless Work Zone Impact-Protection Truck

On August 18, Colorado Department of Transportation (CDOT) and a group of partners that helped develop the new "autonomous impact-protection vehicle" showcased the AIPV in action without a driver … [Read more...] about Colorado Touts Nation’s First Deployed Driverless Work Zone Impact-Protection Truck

CDOT and Partners Deploy World’s First Self-Driving Work Zone Vehicle

The Colorado Department of Transportation (CDOT) and a host of partners showcased the Autonomous Impact Protection Vehicle (AIPV) in action without a driver behind the wheel during a live roadway … [Read more...] about CDOT and Partners Deploy World’s First Self-Driving Work Zone Vehicle

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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