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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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Travel Time

Improving Efficiency of INDOT Traffic Data Collection Using GPS Devices

INDOT has utilized many new technologies to reduce travel delay, mitigate traffic congestion, and enhance public and employees' safety. Many projects are underway, including re-timing of most existing … [Read more...] about Improving Efficiency of INDOT Traffic Data Collection Using GPS Devices

An Evaluation of Lane Closure Strategies for Interstate Work Zones

A systematic procedure was developed in the present study that can be used to make a decision regarding the appropriate lane closure strategy at a particular interstate work zone. Four criteria were … [Read more...] about An Evaluation of Lane Closure Strategies for Interstate Work Zones

User’s Manual for QUEWZ-92

QUEWZ-92 is a microcomputer analysis tool for planning and scheduling use in freeway work zone lane closures. It analyzes traffic conditions on a freeway segment with and without a lane closure in … [Read more...] about User’s Manual for QUEWZ-92

Modeling and Optimization of the Indiana Lane Merge Control System on Approaches to Freeway Work Zones

Severe traffic turbulence on entry sections of freeway work zones increases the delays and risk of crash. A new Indiana Department of Transportation system called Indiana Merge Lane System (IMLS) … [Read more...] about Modeling and Optimization of the Indiana Lane Merge Control System on Approaches to Freeway Work Zones

Economic Impact of Work Zone Travel-Time Delays

The Idaho Department of Transportation (!DT) is interested in the development of a computer model that can calculate an estimate of user costs of travel time delays due to work zones. The IDT hopes … [Read more...] about Economic Impact of Work Zone Travel-Time Delays

Intelligent Transportation Systems in Work Zones – A Case Study: Work Zone Travel Time System

This case study is one in a series of documents that examines the use of Intelligent Transportation Systems (ITS) in work zones. It reports reducing congestion with the use of a Traffic Management … [Read more...] about Intelligent Transportation Systems in Work Zones – A Case Study: Work Zone Travel Time System

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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