• 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
  • Join Listserv
  • Contact
  • Twitter
  • 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
    • Transportation Management Plans
    • Accommodating Pedestrians
    • Worker Safety and Welfare
    • Project Coordination in Work Zones
  • Training
    • Flagger
    • Online Courses
    • Toolboxes
    • FHWA Safety Grant Products
    • Certification and
      Accreditation
  • Work Zone Devices
  • Laws, Standards & Policies
    • COVID-19 Guidance
  • Public Awareness
  • Events
  • About
  • Listserv
  • Contact
  • Search
Publication

Proposed Model for Predicting Motorist Delays at Two-Lane Highway Work Zones

Author/Presenter: Cassidy, Michael J.; Han, Lee D.
Abstract:

Maintenance activity on two-lane highways often requires the closure of one travel lane. Vehicles in both directions of travel are served via the one remaining lane. Under such conditions, alternating right of way into the highway’s work zone is provided to each direction of travel. This so-called “one-way traffic control” typically creates significant motorist delays. This paper describes a proposed technique for estimating vehicle delays and queue lengths on two-lane highways operating under one-way traffic control. Using parameter estimates derived through empirical data, the procedure estimates the average amount of time right of way is extended to each direction of travel during a given time period of operation. Average motorist delays and queue lengths occurring over the given time period are then computed using deterministic queueing theory. The proposed technique can aid highway agencies in determining the appropriate physical lengths and/or hours of operation for two-lane highway work-zone segments.

Source: Journal of Transportation Engineering
Volume: 119
Issue: 1
Publication Date: January/February 1993
Full Text URL: Link to URL
Publication Types: Books, Reports, Papers, and Research Articles
Topics: Maintenance Practices; Traffic Delays; Traffic Queuing

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