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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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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

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

South Carolina avoids speed limit reductions except during lane closures or geometric changes. … [Read more...] about Traffic management techniques (beyond the MUTCD) used to reduce delay in work zones

Traffic Control Management Through Construction Zones

As I-70 construction activities in Colorado's Glenwood Canyon intensified, it became increasingly clear that traditional approaches to construction traffic control could neither efficiently nor safely … [Read more...] about Traffic Control Management Through Construction Zones

FHWA Software Package Estimates Work Zone Traffic Delays

A new software package that the U. S. Department of Transportation's Federal Highway Administration (FHWA) helped develop can assist highway engineers in estimating traffic delays caused by work zones … [Read more...] about FHWA Software Package Estimates Work Zone Traffic Delays

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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