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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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Warning Systems

Use of safety intrusion alarms in work zones

After testing two models of the work zone intrusion alarm, Vermont DOT's research unit purchased a model that uses an infrared beam sent from a transmitter unit to a receiver unit that also houses the … [Read more...] about Use of safety intrusion alarms in work zones

Use of safety intrusion alarms in work zones

New York DOT compared three models of intrusion alarm during a series of demonstrations and field evaluations across the state in the summer of 1994. Errant vehicles set off the intrusion alarms … [Read more...] about Use of safety intrusion alarms in work zones

Traffic management techniques (beyond the MUTCD) used to reduce accidents in work zones

Nevada uses the following: speed reductions prior to and through work zones, intrusion alarm systems, fluorescent orange sheeting for all construction signs for improved visibility, and night work … [Read more...] about Traffic management techniques (beyond the MUTCD) used to reduce accidents in work zones

Devices and Technology to Improve Flagger/Worker Safety

The purpose of this study was to identify new work zone traffic control (WZTC) techniques and devices being used throughout the country to improve worker safety, and to evaluate their appropriateness … [Read more...] about Devices and Technology to Improve Flagger/Worker Safety

Worker Warning Device: Intrusion Alarm Technical Information

This article discusses the various technologies used to develop intrusion alarms which warn maintenance workers of moving vehicle intrusion into a work zone. The warning devices were initially … [Read more...] about Worker Warning Device: Intrusion Alarm Technical Information

Work Zone Intrusion Alarms: A Short Course on What They Are and Why They Are Needed

This article discusses the need for intrusion alarms to warn highway workers of moving vehicle intrusion into work zones. The original alarm system developed under the Strategic Highway Research … [Read more...] about Work Zone Intrusion Alarms: A Short Course on What They Are and Why They Are Needed

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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
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