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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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Merging Area

Modeling Speed-Flow Relationship and Merging Behavior in Work Zone Merging Areas

This paper aims to investigate the speed-flow relationship and drivers' merging behavior in work zone merging areas. It first proposes lane-based speed-flow models, incorporating traffic conflicts … [Read more...] about Modeling Speed-Flow Relationship and Merging Behavior in Work Zone Merging Areas

Evaluation of Rear-End Crash Risk at Work Zone Using Work Zone Traffic Data

This paper aims to evaluate the rear-end crash risk at work zone activity area and merging area, as well as analyze the impacts of contributing factors by using work zone traffic data. Here, the … [Read more...] about Evaluation of Rear-End Crash Risk at Work Zone Using Work Zone Traffic Data

Behavior Study of Merge Practices for Drivers at Work Zone Closures

The purpose of this project was to determine which driver behaviors result in the greatest reduction of capacity with work zone lane closures. Traffic and safety experts believe that driver behaviors, … [Read more...] about Behavior Study of Merge Practices for Drivers at Work Zone Closures

Joint Merge and Its Impact on Merging Speeds in Lane Reduction Areas of Construction Zone

To increase the efficiency and safety of traffic flow in the vicinity of lane reduction transition areas, engineers have begun to use innovative techniques to facilitate traffic flow through these … [Read more...] about Joint Merge and Its Impact on Merging Speeds in Lane Reduction Areas of Construction Zone

Don’t Feel Cheated: ‘Late Mergers’ in Construction Zones can Actually Ease Traffic Congestion

Most drivers believe they are abiding by proper roadway etiquette when they merge as soon as possible after being notified of a lane closure. Because most drivers merge early, an open lane is created … [Read more...] about Don’t Feel Cheated: ‘Late Mergers’ in Construction Zones can Actually Ease Traffic Congestion

Evaluation of Early Merge Static Work Zone Signing in Oklahoma

This research examined the safety and operational benefits of having traffic merge early into the open lane prior to a work zone merge area. A 2007 law in Oklahoma adopted the use of additional “STATE … [Read more...] about Evaluation of Early Merge Static Work Zone Signing in Oklahoma

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Copyright © 2023 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