• 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

Traffic Speed

 

Incorporating Work Zone Configuration Factors into Speed-Flow and Capacity Models

This study aims to develop work zone speed-flow and capacity models, which incorporate work zone configuration factors including the number of work zones, geometrical alignment, work zone speed limit, … [Read more...] about Incorporating Work Zone Configuration Factors into Speed-Flow and Capacity Models

New Methodology to Determine Work Zone Capacity Distribution

Since the true value of work zone capacity is difficult to be known with a perfect confidence, work zone capacity should be represented by means of a probability distribution. Therefore, this study … [Read more...] about New Methodology to Determine Work Zone Capacity Distribution

Preliminary Evaluation of Dynamic Speed Displays with Conditional Messaging

Changeable message signs (CMSs) and dynamic speed displays (DSDs) for speed management applications have been deployed to address multiple situations. These have often been reported to produce … [Read more...] about Preliminary Evaluation of Dynamic Speed Displays with Conditional Messaging

Comparison of Vehicle Speeds Adjacent to Maintenance Work Zones with and Without a Mobile Barrier

Highway maintenance and construction activities are oftentimes performed in a travel lane, median, or shoulder adjacent to vehicles traveling at relatively high speeds and in close proximity to the … [Read more...] about Comparison of Vehicle Speeds Adjacent to Maintenance Work Zones with and Without a Mobile Barrier

Calibration of VISSIM for Freeway Work Zones with Time-Varying Capacity

This paper presents a systematic procedure for calibration of a VISSIM model to replicate time dependent capacity, speed, and queue length for a 2-to-1 freeway work zone. The procedure models time … [Read more...] about Calibration of VISSIM for Freeway Work Zones with Time-Varying Capacity

Driving Speed Behavior of Cars and Trucks on Six-Lane Highway Work Zone Considering Lane and Location Deviation

Work zones are not only traffic bottlenecks, but also critical points for the safety of both vehicle occupants and workers. Vehicle speed is a key factor to estimate traffic efficiency and understand … [Read more...] about Driving Speed Behavior of Cars and Trucks on Six-Lane Highway Work Zone Considering Lane and Location Deviation

  • « Go to Previous Page
  • Page 1
  • Interim pages omitted …
  • Page 12
  • Page 13
  • Page 14
  • Page 15
  • Page 16
  • Page 17
  • 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