• 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
    • Flagger
    • Online Courses
    • Toolboxes
    • FHWA Safety Grant Products
    • Certification and
      Accreditation
  • Work Zone Devices
  • Laws, Standards & Policies
  • Public Awareness
  • Events
  • About
  • Contact
  • Search
Publication

Novel Method of Obtaining Critical Parameter in Safety Assessment for Maintenance Work Zone

Author/Presenter: Xu, Zhepu; Yang, Qun
Abstract:
Safety assessment of maintenance work zone is crucial for the safety of conservation personnel and traveling vehicles. To make up for the limitations of current methods to do timely safety assessment for maintenance work zones, this paper makes full use of the existing safety assessment theory, and proposes a method based on naturalistic driving study, automatic segmentation technology and spatial clustering analysis to obtain the critical parameter of a classic safety assessment model. Firstly, vehicle behavior data is collected by naturalistic driving method; secondly, using the automatic segmentation technology, the fragments containing traffic conflict information in the data are extracted; these fragments are then clustered by kernel density analysis to find the location of the high density point of traffic conflict; finally, the critical parameter is calculated, that is, the geometric relationship between the location and the maintenance work zone; then, input the critical parameter into the classic safety assessment method so as to achieve the purpose of safety assessment for maintenance work zone. Practice has proved that the key parameter obtaining method proposed in this paper fully takes into account the characteristics of maintenance work zones; it can collect the behavior data of vehicles passing through quickly and flexibly, then makes a timely safety assessment for the zone, thus can better meet the actual needs of maintenance.
Source: Transportation Research Board 97th Annual Meeting, January 7-11, 2018, Washington DC
Publisher: Transportation Research Board
Publication Date: 2018
Source URL: Link to URL
Publication Types: Books, Reports, Papers, and Research Articles
Topics: Behavior; Highway Maintenance; Risk Analysis; Work Zone Safety

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