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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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Washington

Work zone speed limit

See Speed Limit Reductions in Work Zones on the web site below for guidance from Washington State DOT. … [Read more...] about Work zone speed limit

Give ’em a Brake

The men and women who maintain and improve Washington's more than 7,000 miles of state highway ask you to slow down and pay extra attention to road construction signs. The Give 'Em A Brake" program … [Read more...] about Give ’em a Brake

Vehicle warning lights

The requirements are included in WSDOT Vehicle and Equipment Warning Light Systems Manual. … [Read more...] about Vehicle warning lights

Prevention of work zone related injuries and fatalities

The Washington DOT Work Zone Safety Task Force is dedicated to the prevention of work zone related injuries and fatalities. Established in August 1993, the task force was created to examine work zone … [Read more...] about Prevention of work zone related injuries and fatalities

Flagger training and certification requirements

From Washington State Department of Transportation Standard Specifications for Road, Bridge, and Municipal Construction: "1-10.3(1)A Flaggers Flaggers shall be posted where shown on traffic control … [Read more...] about Flagger training and certification requirements

Work zone impact thresholds

WSDOT does not use performance specifications. Time of day restrictions or night work is specified based on hourly traffic volumes. Generally WSDOT uses analysis programs such as QUEWZ98 to calculate … [Read more...] about Work zone impact thresholds

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Copyright © 2023 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