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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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Iowa Department of Transportation

Road Work Zones to Have Minimal Effect on Labor Day Traffic

AMES, IOWA - Road work will have a minimal effect on traffic during the Labor Day weekend, according to Iowa Department of Transportation officials. "We realize that many motorists will be on the road … [Read more...] about Road Work Zones to Have Minimal Effect on Labor Day Traffic

Iowa DOT Official Testifies on Work Zone Safety

Iowa Department of Transportation (DOT) research director Ian MacGillivray testified before a congressional hearing in Washington, D.C., concerning work zone safety. Subcommittee hearings on … [Read more...] about Iowa DOT Official Testifies on Work Zone Safety

Speed Limits Lowered in High-Speed Work Zones

Lower speed limits for certain work zones on interstate and other multi-lane highways became effective today, June 1, 2001. The Iowa Department of Transportation announced the change, which will … [Read more...] about Speed Limits Lowered in High-Speed Work Zones

Evaluation of Work Zone Traffic Control Enhancements

In an attempt to improve work zone safety, the Iowa Department of Transportation (DOT) initiated a research project to determine the overall effectiveness, including functionality, of several proposed … [Read more...] about Evaluation of Work Zone Traffic Control Enhancements

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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
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