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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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Flagger training and certification requirements

From Massachusetts Department of Transportation About the flagger certification program: "In accordance with 701 CMR § 7.07(2), the Massachusetts Department of Transportation has the authority to … [Read more...] about Flagger training and certification requirements

Use of police on construction projects

Below is a link to the executed contract with Florida Highway Patrol for speed enforcement in work zones. Refer to page 10 of the pdf document for the method of compensation. This is not part of the … [Read more...] about Use of police on construction projects

Traffic control measures used in work zones

Depending on the type of work and location, typically in southwestern Virginia along Interstate routes, they utilize fixed overhead variable message signs, portable changeable message boards, speed … [Read more...] about Traffic control measures used in work zones

Changing light bulbs on overhead signs

In Illinois, contractors are given the option of working over a traffic lane or closing the lane. All of their contractors prefer working over a closed lane. State specifications are very strict … [Read more...] about Changing light bulbs on overhead signs

Changing light bulbs on overhead signs

Washington DOT does not have a strict requirement that lanes be closed while changing lights or doing other overhead work that takes place over a live lane, but it is strongly recommended and … [Read more...] about Changing light bulbs on overhead signs

Changing light bulbs on overhead signs

Missouri DOT's policy is that when working over traffic from a man-lift or bucket type truck, the operator will position the bucket so any material/equipment dropped will fall within the basket. When … [Read more...] about Changing light bulbs on overhead signs

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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