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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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Intrusion Alarms

Strategies on Improving Worker Safety in Work Zones

Guidelines on Worker Safety Strategies (Subpart K) describes traffic control measures that can be appropriate in work zones to further improve the safety of highway workers. The document addresses … [Read more...] about Strategies on Improving Worker Safety in Work Zones

Guidelines for the Use of Positive Protection in Work Zones

Positive protection devices that contain and/or redirect vehicles and meet crashworthiness evaluation criteria should prevent intrusion into the work area. These guidelines address the use of positive … [Read more...] about Guidelines for the Use of Positive Protection in Work Zones

Work Zone Up Ahead: Other States Call TTI for Work Zone Research

The safety of traffic operations in work zones has been a priority nationwide. This article describes the Texas Transportation Institute (TTI)'s involvement in three recent work zone research projects … [Read more...] about Work Zone Up Ahead: Other States Call TTI for Work Zone Research

Use of drone radar, safety intrusion alarms, CB Wizard, and automated flaggers in work zones

TxDOT has used drone radar in both rural and urban work zones, mostly in mobile operations. It was perceived to be somewhat effective as a speed control measure. Problem: It targets only road users … [Read more...] about Use of drone radar, safety intrusion alarms, CB Wizard, and automated flaggers in work zones

Use of drone radar and safety intrusion alarms in work zones

Caltrans has used radar speed trailers in work zones and has experimented with other drone-type speed advisory devices. The devices have been effective, especially on high-speed interstate freeways … [Read more...] about Use of drone radar and safety intrusion alarms in work zones

Nevada:Use of safety intrusion alarms in work zones

Nevada DOT has used safety intrusion alarms in work zones. The type of safety intrusion alarm used is electrical. The system was effective at first, but construction vehicles began running through the … [Read more...] about Nevada:Use of safety intrusion alarms in work zones

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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