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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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Traffic Speed

 

Verification and Efficacy of Automated Queue Detection Systems on Interstate Intelligent Work Zones

Intelligent work zones have been widely adopted in the United States because they have been proven to improve traffic safety and operations. One specific intelligent work zone system, known as … [Read more...] about Verification and Efficacy of Automated Queue Detection Systems on Interstate Intelligent Work Zones

Applying Clustered KNN Algorithm for Short-Term Travel Speed Prediction and Reduced Speed Detection on Urban Arterial Road Work Zones

This study developed and verified a travel speed prediction model based on the travel speed and work zone statistics collected from the advanced traffic management system (ATMS) real-time data in … [Read more...] about Applying Clustered KNN Algorithm for Short-Term Travel Speed Prediction and Reduced Speed Detection on Urban Arterial Road Work Zones

Issues With Work Zone Free Flow Speed Computation in 6th Edition HCM and Proposed Improvements

Free flow speed (FFS) and capacity of work zones (WZ) directly affect queue length and delay in the WZ. The 6th Edition of Highway Capacity Manual introduced a new model to estimate WZ FFS and … [Read more...] about Issues With Work Zone Free Flow Speed Computation in 6th Edition HCM and Proposed Improvements

Safety Impact of Connected Vehicles on Driver Behavior in Rural Work Zones Under Foggy Weather Conditions

Work zone (WZ) safety is one of the paramount goals of the safety community. Safety in WZs is a particular concern under foggy conditions as they represent an exogenous factor contributing to high … [Read more...] about Safety Impact of Connected Vehicles on Driver Behavior in Rural Work Zones Under Foggy Weather Conditions

Using Connected Vehicle Trajectory Data to Evaluate the Impact of Automated Work Zone Speed Enforcement

Work zone safety is a high priority for transportation agencies across the United States. Enforcing speed compliance in work zones is an important factor for reducing the frequency and severity of … [Read more...] about Using Connected Vehicle Trajectory Data to Evaluate the Impact of Automated Work Zone Speed Enforcement

Pennsylvania Study Looks at Work Zone Crashes, Risk Factors

A recent study by Carnegie Mellon University looked at the effects of traffic, weather and other factors impacting the safety of highway work zones and increased accident risks in these areas. … [Read more...] about Pennsylvania Study Looks at Work Zone Crashes, Risk Factors

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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