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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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Cognition

Misunderstood Applications of Urban Work Zone Traffic Control

Traffic control manuals do not sufficiently address many of the problems associated with urban arterial work zones. The traffic control devices applied within these work zones are sometimes … [Read more...] about Misunderstood Applications of Urban Work Zone Traffic Control

Driver Understanding of Messages Displayed on Sequential Portable Changeable Message Signs in Work Zones

In this paper, researchers present the results of a Texas Transportation Institute (TTI) driving simulator study of the ability of motorists to capture and process information on two portable … [Read more...] about Driver Understanding of Messages Displayed on Sequential Portable Changeable Message Signs in Work Zones

Driver Understanding of Work Zone Flagger Signals and Signaling Devices

The report documents the results of a human factors laboratory study conducted in Texas to evaluate driver understanding of 13 work zone flagger signals. A total of 123 motorists participated in the … [Read more...] about Driver Understanding of Work Zone Flagger Signals and Signaling Devices

Motorist Comprehension of Traffic Control Devices for Mobile Operations

In 2004, researchers conducted surveys to evaluate motorist comprehension of various mobile traffic control devices used to inform drivers about the number of vehicles in a work convoy; speed … [Read more...] about Motorist Comprehension of Traffic Control Devices for Mobile Operations

Texas Driver Understanding of Abbreviations for Dynamic Message Signs

This report presents recommendations to improve the design of messages for dynamic message signs (DMSs). Specifically, it presents recommendations for effective abbreviations that can be used when the … [Read more...] about Texas Driver Understanding of Abbreviations for Dynamic Message Signs

Teenage Drivers’ Understanding of Traffic Control Devices

Teenage drivers are involved in traffic crashes more often than any other driver group, and their fundamental knowledge of traffic control devices and rules of the road is extremely important in safe … [Read more...] about Teenage Drivers’ Understanding of Traffic Control Devices

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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
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