• 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
Publication

Optimizing Work Zone Traffic Flow on Two-Lane Highways

Author/Presenter: Ng, ManWo
Abstract:

Road maintenance is essential to ensure a safe and efficient transportation system. In this paper we address two major limitations in current work zone optimization models. First, we relax the assumption of determinism and model vehicle arrivals as being stochastic. While previous work has shown that this relaxation is important in the quantification of user delay at work zones, to the best of the author’s knowledge, no model exists that explicitly accounts for stochasticity in the optimization of work zones. Second, unlike in previous work where rather idealized traffic flow modeling techniques were used, the proposed model is based on the traffic flow theory-based cell transmission model, yielding a more accurate and realistic representation of traffic flow dynamics. Numerical examples are presented and discussed.

Source: Presented at the 91st Annual Meeting of the Transportation Research Board, January 2012, Washington, D.C.
Publisher: Transportation Research Board
Publication Date: 2012
Source URL: Link to URL
Publication Types: Books, Reports, Papers, and Research Articles
Topics: Traffic Delays; Traffic Flow; Traffic Models; Work Zones

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