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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 Delays

 

Determining the Most Economical Work Zone Lengths for Rural Highway Rehabilitation Projects

Despite the wealth of research that has sought to understand the effects of highway work zones, very little definitive information is available concerning the determination of work zone length (WZL) … [Read more...] about Determining the Most Economical Work Zone Lengths for Rural Highway Rehabilitation Projects

Work Zone Capacity Estimation for High Truck Volume Routes in Arkansas: Predicting Highway Capacity through Work Zones With High Truck Volumes and Reduced Lane Geometry Based Upon Local Conditions

Work zones on freeways are estimated to contribute to nearly 24 percent of non‐recurring delay.  Prior to 2010, the Highway Capacity Manual (HCM) provided limited guidance on vehicular capacity … [Read more...] about Work Zone Capacity Estimation for High Truck Volume Routes in Arkansas: Predicting Highway Capacity through Work Zones With High Truck Volumes and Reduced Lane Geometry Based Upon Local Conditions

Delay or Travel Time Information? The Impact of Advanced Traveler Information Systems on Drivers’ Behavior Before Freeway Work Zones

Peak travel times contribute to congestion formation at freeway work zones. Advanced Traveler Information Systems (ATIS) can inform drivers in real-time about the delays and travel times en-route and … [Read more...] about Delay or Travel Time Information? The Impact of Advanced Traveler Information Systems on Drivers’ Behavior Before Freeway 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

The Influence of Work Zone Management on User Carbon Dioxide Emissions in Life Cycle Assessment on Highway Pavement Maintenance

The higher contribution of traffic delay to environmental impacts is urging the highway agencies to take work zone management into the maintenance schemes decision-making. Aiming to understand the … [Read more...] about The Influence of Work Zone Management on User Carbon Dioxide Emissions in Life Cycle Assessment on Highway Pavement Maintenance

Road Work Ahead: Using Deep Neural Networks to Estimate the Impacts of Work Zones

Roadside construction – be it a detour, a closed lane, or a slow weave past workers and equipment – work zones impact traffic flow and travel times on a system-wide level. The ability to predict … [Read more...] about Road Work Ahead: Using Deep Neural Networks to Estimate the Impacts of Work Zones

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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