• Skip to primary navigation
  • Skip to main content
Logo

Work Zone Safety Information Clearinghouse

Library of Resources to Improve Roadway Work Zone Safety for All Roadway Users

  • About
  • Newsletter
  • Contact
  • X
  • Facebook
  • LinkedIn

  • Work Zone Data
    • At a Glance
    • National & State Traffic Data
    • Work Zone Traffic Crash Trends and Statistics
    • Worker Fatalities and Injuries at Road Construction Sites
  • Topics of Interest
    • Advancing Nighttime Work Zone Safety
    • Commercial Motor Vehicle Safety
    • Smart Work Zones
    • Transportation Management Plans
    • Accommodating Pedestrians
    • Worker Safety and Welfare
    • Project Coordination in Work Zones
  • Training
    • Online Courses
    • FHWA Safety Grant Products
    • Toolboxes
    • Flagger
    • Certification and
      Accreditation
    • For New Drivers
  • Work Zone Devices
  • Laws, Standards & Policies
  • Public Awareness
  • Events
  • Contact
  • Search

Traffic Queuing

 

Connected Vehicle Data-Based Tools for Work Zone Active Traffic Management

Work zones present challenges to safety and mobility that require agencies to balance limited resources with vital traffic management activities. It is important to obtain operational feedback for … [Read more...] about Connected Vehicle Data-Based Tools for Work Zone Active Traffic Management

Merging Vehicles and Lane Speed-Flow Relationship in a Work Zone

In addition to closed merge lanes as physical bottlenecks of work zones, traffic oscillations caused by merging vehicles at multiple locations could reduce work zone capacity. This study took a … [Read more...] about Merging Vehicles and Lane Speed-Flow Relationship in a Work Zone

Iowa Work Zones are Getting Smarter

Intelligent Transportation Systems (ITS) tools including traffic sensors and cameras are deployed in 28 state highway work zones in Iowa. Those tools sent data on traffic speed, queue length, and … [Read more...] about Iowa Work Zones are Getting Smarter

Validating the Performance of the FHWA Work Zone Model Version 1.0: A Case Study Along I-91 in Springfield, Massachusetts

Central to the effective design of work zones is being able to understand how drivers behave as they approach and enter a work zone area. States use simulation tools in modeling freeway work zones to … [Read more...] about Validating the Performance of the FHWA Work Zone Model Version 1.0: A Case Study Along I-91 in Springfield, Massachusetts

Optimization of Work Zone Segments on Urban Roads Using Cellular Automata Model in Mixed Traffic

Increased delays and reduced speeds in work zones leads to  congestion. This can be improved by optimizing the work zone length. The focus of this study is to model work zones using  cellular automata … [Read more...] about Optimization of Work Zone Segments on Urban Roads Using Cellular Automata Model in Mixed Traffic

Feasibility of Lane Closures Using Probe Data

To develop an adequate traffic operations management and congestion mitigation plan for every roadway maintenance and construction project requiring lane closures, transportation agencies need … [Read more...] about Feasibility of Lane Closures Using Probe Data

  • « Go to Previous Page
  • Page 1
  • Interim pages omitted …
  • Page 5
  • Page 6
  • Page 7
  • Page 8
  • Page 9
  • Interim pages omitted …
  • Page 19
  • Go to Next Page »

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
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