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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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Variable Speed Limit Systems

Speed Signs

… [Read more...] about Speed Signs

Smart Work Zone Variable Speed Limit Trailer

… [Read more...] about Smart Work Zone Variable Speed Limit Trailer

Deployment and Evaluation of ITS Technology in Work Zones

Highways in rural areas where construction work is taking place experience many of the same traffic problems that are being experienced by large urban areas such as congestion, delays, aggressive … [Read more...] about Deployment and Evaluation of ITS Technology in Work Zones

Evaluation of Speed Reduction Techniques at Work Zones

The goal of the Midwest States Smart Work Zone Deployment Initiative (MwSWZDI) is to develop better ways of controlling traffic through work zones, which improves traffic safety and traffic operating … [Read more...] about Evaluation of Speed Reduction Techniques at Work Zones

Innovative Traffic Control: Technology and Practice in Europe

This summary report describes a May 1998 transportation technology scanning tour of four European countries. The tour was co-sponsored by the Federal Highway Administration (FHWA), the American … [Read more...] about Innovative Traffic Control: Technology and Practice in Europe

Evaluation of a Freeway Work-zone Advance Speed Advisory System

The Quixote IntelliZone is a work zone speed advisory system. Three mobile count units (which can measure flow, speed, and density) are placed in each lane where queues could form due to the … [Read more...] about Evaluation of a Freeway Work-zone Advance Speed Advisory System

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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