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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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Work Zone Capacity

Impact of Lane Closures on Roadway Capacity, Phase 2

This project is a follow-up to Florida Department of Transportation (FDOT) research project BD545-61, “Impact of Lane Closures on Roadway Capacity” (specifically, Part A: Development of a Two-Lane … [Read more...] about Impact of Lane Closures on Roadway Capacity, Phase 2

Model of Work Zone Capacity of Reconstructed Expressway

Capacity analysis is the only way to formulate traffic organization schemes and evaluate the pros and cons on the work zones of reconstructed expressway. Currently, the lack of work zone capacity … [Read more...] about Model of Work Zone Capacity of Reconstructed Expressway

WorkZoneQ User Guide for Two-Lane Freeway Work Zones

WorkZoneQ was developed in Visual Basic for Applications (VBA) to implement the results of the previous study, “Queue and Users’ Costs in Highway Work Zones.” This report contains the WorkZoneQ user … [Read more...] about WorkZoneQ User Guide for Two-Lane Freeway Work Zones

Estimating Work Zone Capacity from Point Sensors: Challenges and Lessons Learned

In recent years, federal and state-level policies on work zone mobility have placed an emphasis on performance monitoring of significant freeway work zones. With new requirements for assessing work … [Read more...] about Estimating Work Zone Capacity from Point Sensors: Challenges and Lessons Learned

Work Zone Capacity Estimation Using an Ensemble Tree Approach

Accurate estimation of work zone capacity is critical to the success of traffic control management strategies at work zones. This study uses an ensemble tree approach to more accurately estimate work … [Read more...] about Work Zone Capacity Estimation Using an Ensemble Tree Approach

Planning-Level Approach to Estimating User Cost for Freeway Work Zones

This paper presents an approach for estimating the impacts of freeway work zones in a Highway Capacity manual (HCM) context. The freeway facilities methodology in the HCM 2010 emphasizes its … [Read more...] about Planning-Level Approach to Estimating User Cost for Freeway Work Zones

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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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