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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

Effects of Road Construction Intensity and Operations on Rural Freeway Work Zone Capacity

Capacity is affected by construction type and its intensity on adjacent open traffic lanes. The effect on capacity is a function of vehicles moving in and out of the closed lanes of the work zone, and … [Read more...] about Effects of Road Construction Intensity and Operations on Rural Freeway Work Zone Capacity

Effectiveness of Work Zone Intelligent Transportation Systems

In the last decade, Intelligent Transportation Systems (ITS) have increasingly been deployed in work zones by state departments of transportation. Also known as smart work zone systems they improve … [Read more...] about Effectiveness of Work Zone Intelligent Transportation Systems

Traffic And Safety Manual

Originally published in 2001, many chapters have been updated since then. The Traffic and Safety Manual is intended to provide guidelines or information on how a certain activity related to traffic … [Read more...] about Traffic And Safety Manual

Iowa Work Zone Safety Guidelines for Utilities

This handbook generally represents minimum requirements for typical situations. It is not intended as a substitute for engineering judgment and may need to be altered to fit the conditions of a … [Read more...] about Iowa Work Zone Safety Guidelines for Utilities

Iowa DOT Standard Road Plans

The standard road plans contained in this manual (commonly referred to as the "Red Book") have been developed to show standardized design features, construction methods and approved materials to be … [Read more...] about Iowa DOT Standard Road Plans

Flagger’s Handbook

This handbook introduces proper flagging procedures in Iowa. The information in this booklet is consistent with the 2009 Edition of the Manual on Uniform Traffic Control Devices (MUTCD), Part 6, and … [Read more...] about Flagger’s Handbook

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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