• 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
    • Training
    • Online Courses
    • Toolboxes
    • FHWA Safety Grant Products
    • Certification
  • Work Zone Devices
  • Laws, Standards & Policies
    • COVID-19 Guidance
  • Public Awareness
  • Events
  • About
  • Listserv
  • Contact
  • Search
Publication

Modeling Speed Behavior of Passenger Cars and Trucks in Freeway Construction Work Zones: Implications on Work Zone Design and Traffic Control Decision Processes

Author/Presenter: Porter, Richard J.; Mason, John M. Jr.
Abstract:

Current work zone design and traffic control guidance is based on desirable speed outcomes; knowledge related to actual speed outcomes of design and traffic control decisions is limited. The objective of this research is to investigate relationships among speed behavior, roadway geometrics, and traffic control in freeway construction work zones. Four speed measures are modeled: 85th percentile passenger car speed, 85th percentile truck speed, passenger car speed deviation, and truck speed deviation. The research objective is accomplished through specification and estimation of a first-order autoregressive seemingly unrelated regression model to account for contemporaneous correlations between equation disturbances and positive autocorrelation. Data for model estimation were collected at 119 locations in 17 Pennsylvania and Texas work zones. Model estimation results show that several work design and traffic control features influence speed magnitudes and deviations. Findings also indicate that relationships among speed magnitude, speed deviation, work zone design, and traffic control are more complex than general engineering intuitions expressed in current work zone design guidance.

Source: Journal of Transportation Engineering
Publication Date: November 2008
Source URL: Link to URL
Publication Types: Books, Reports, Papers, and Research Articles
Topics: Behavior; Temporary Traffic Control; Traffic Speed; Work Zone Design

Copyright © 2022 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