• 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

Analysis of Uncertainty Associated with Response Time in Work Zone Traffic Accidents

Author/Presenter: Xue, Shan; Weng, Jinxian
Abstract:

Considering the uncertainty of response time to work zone traffic accidents, the response time is assumed to be a random variable following a lognormal distribution. The lognormal distributed response time is further modeled via a mixed linear regression function of factors including road type, day of the week, occurrence of a holiday, light condition, work zone type, crash time, and weather. The Bayesian approach is used to calibrate the lognormal distribution model. A case study was created using work zone traffic accident data from the Fatality Analysis Report System between 2002 and 2009. The results showed that the uncertainty of the response time was primarily influenced by road type, crash time, weather, and light conditions. In order to shorten response times, it is suggested that work zone activities are to be undertaken during non-holidays, during the daytime, and in good weather and light conditions.

Source: 14th COTA International Conference of Transportation Professionals, July 4-7, 2014, Changsha, China
Publication Date: 2014
Full Text URL: Link to URL
Publication Types: Books, Reports, Papers, and Research Articles
Topics: Crash Data; Incident Management; Work Zones

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