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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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Lane Closure

Updated Short-Term Freeway Work Zone Lane Closure Capacity Values

This report reviews previous studies of work zone capacity, summarizes the analysis of new capacity data collected as part of Study 1108, and presents recommendations for estimating the capacity of … [Read more...] about Updated Short-Term Freeway Work Zone Lane Closure Capacity Values

Construction Costs and Safety Impacts of Work Zone Traffic Control Strategies, Volume I: Final Report

This final report is the first volume of the two-volume series. Research was performed to determine total costs (construction and road user costs) and safety impacts associated with traffic control … [Read more...] about Construction Costs and Safety Impacts of Work Zone Traffic Control Strategies, Volume I: Final Report

Model to Calculate the Road User Costs at Work Zones

This report presents a model, QUEWZ, which can be used to calculate the user costs resulting from lane closures through a work zone. QUEWZ calculates the delay costs and speed-change cycling costs of … [Read more...] about Model to Calculate the Road User Costs at Work Zones

Effects of Work Zone Detours on Rural Highway Traffic Operations

The study examines tow US 59 work zone sites and their impact on rural highway traffic. After first recording typical traffic under free-flow conditions (using infrared sensors and reflectors mounted … [Read more...] about Effects of Work Zone Detours on Rural Highway Traffic Operations

Construction Work Zone Safety

The need of maintaining safety of motorists and workers during periods of construction activities on interstates has prompted the Indiana Department of Transportation (INDOT) to initiate a study aimed … [Read more...] about Construction Work Zone Safety

Walter Workzone Speaks up About Lane Closures

To prepare a traffic control plan for a short-term lane closure using flaggers on a two-lane, two-way rural road, follow these 9 steps: 1. Select the appropriate Typical Application from the Texas … [Read more...] about Walter Workzone Speaks up About Lane Closures

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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