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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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Measures of Effectiveness

Alternative Sign Sequences for Work Zones on Rural Highways

Two experiments were done on a two-lane rural road (US-2) in central Maine to evaluate the effectiveness of alternate signing sequences for providing warning to motorists of construction and … [Read more...] about Alternative Sign Sequences for Work Zones on Rural Highways

Temporal Speed Reduction Effects of Drone Radar in Work Zones

Three experiments were conducted to evaluate the effectiveness of using drone (passive or unmanned) radar guns on vehicle speeds in work zones. Experiment 1 was an exploratory study to determine the … [Read more...] about Temporal Speed Reduction Effects of Drone Radar in Work Zones

Review of Behavioural Studies, Accident Studies and Research Methods

The present Deliverable 2 reports on the work carried out for Workpackage 2 of the ARROWS Project, titled Review of Behavioural Studies, Accident Studies and Research Methods. The main objectives of … [Read more...] about Review of Behavioural Studies, Accident Studies and Research Methods

Effect of Radar Drone Operation on Speeds at High Crash Risk Locations

At highway construction and maintenance work zones and other locations where roadway alignment, road surface, and traffic flow conditions have contributed to high crash rates, crash risk may be … [Read more...] about Effect of Radar Drone Operation on Speeds at High Crash Risk Locations

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Copyright © 2026 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