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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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Control

4-Hour Work Zone Flagger

The Work Zone Flagger training course is required for anyone who wants to work as a certified flagger in New York State. Flaggers are required in work zone traffic control areas to protect the … [Read more...] about 4-Hour Work Zone Flagger

Updated Work Zone Positive Protection Toolbox

This document provides an update to a prior Positive Protection Toolbox publication and describes the use of positive protection as a safety feature for roadway construction and maintenance projects, … [Read more...] about Updated Work Zone Positive Protection Toolbox

Colorado Transportation Officials Update COTrip App With Push Notifications, New Language Features

The Colorado Department of Transportation has enhanced its COTrip travel information platform by adding Spanish and Vietnamese language options and introducing push notification capabilities in the … [Read more...] about Colorado Transportation Officials Update COTrip App With Push Notifications, New Language Features

Multi-Objective Optimisation of a Variable Speed Limit Control Strategy in a Tunnel Maintenance Work Zone of the Mountain Highway

Variable Speed Limit (VSL) control is essential for managing highway tunnel maintenance work, as it adjusts speed limits based on road conditions to regulate traffic flow. Developing a VSL control … [Read more...] about Multi-Objective Optimisation of a Variable Speed Limit Control Strategy in a Tunnel Maintenance Work Zone of the Mountain Highway

Indiana Adds More Traffic Camera ‘Safe Zones’ in Construction Sites

Indiana has expanded its work zone speed enforcement program by adding a new camera-enforced Safe Zone on Interstate 65 in Jasper County near Rensselaer. The state now operates three Safe Zones, with … [Read more...] about Indiana Adds More Traffic Camera ‘Safe Zones’ in Construction Sites

WisDOT Launches New Traffic Safety Measures for Work Zones

The Wisconsin Department of Transportation (WisDOT) is introducing new safety measures and public awareness efforts to improve safety in highway work zones. Initiatives include illuminated speed limit … [Read more...] about WisDOT Launches New Traffic Safety Measures for Work Zones

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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