• 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
    • Commercial Motor Vehicle Safety
    • Smart Work Zones
    • Work Zone Safety and MobilityTransportation 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
  • Work Zone Devices
  • Laws, Standards & Policies
  • Public Awareness
  • About
  • Events
  • Contact
  • Search

Highway Capacity

Traffic Performance of Successive Freeway Merge Segments

At freeway interchanges with high entering flows, implementing two successive merges can improve traffic flow and capacity by distributing the merging maneuvers. The German Guidelines for the Design … [Read more...] about Traffic Performance of Successive Freeway Merge Segments

Study: Self-Driving Trucks Can Boost Work Zone Safety

A study conducted by the University of Missouri underscores the potential of using self-driving trucks as follower vehicles to enhance safety in highway work zones. Henry Brown, a research engineer at … [Read more...] about Study: Self-Driving Trucks Can Boost Work Zone Safety

TRB: More Needed for Highway Work Zone Safety

This article highlights a recent blog post by the Transportation Research Board re-emphasizing the need for extensive research, planning, and technological advancements to enhance the safety of … [Read more...] about TRB: More Needed for Highway Work Zone Safety

Work Zone Designer Series – Work Zone Analysis in the Design Process

Most State and many other transportation departments in the U.S. maintain roadway and/or work zone design manuals containing State specific regulations, policies, and design guidance for their … [Read more...] about Work Zone Designer Series – Work Zone Analysis in the Design Process

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

Method for Estimating Capacity and Measures of Effectiveness of Two-Lane Highway Work Zones

The present study proposes a method for determining the capacity and measures of effectiveness of two-lane highway work zones. Therefore, a deterministic mathematical formulation was developed based … [Read more...] about Method for Estimating Capacity and Measures of Effectiveness of Two-Lane Highway Work Zones

  • Page 1
  • Page 2
  • Page 3
  • Interim pages omitted …
  • Page 20
  • Go to Next Page »

Copyright © 2025 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