Implementation Guide for Monitoring Work Zone Safety and Mobility Impacts

This implementation guide describes the conceptual framework, data requirements, and computational procedures for determining the safety and mobility impacts of work zones in Texas. Researchers designed the framework and procedures to assist district-level personnel who have responsibility for work zone safety and mobility impact reviews of significant projects as required by Texas Department of Transportation (TxDOT) policy. In this guide, researchers describe the types of impact monitoring and analysis that can occur as part of on-going project activities and those that can be performed during post-project reviews. Analysis procedures are presented to assist in determining which projects should be targeted for regular reviews of crash data during the project, as well as the increase in crash frequency that is indicative of unusual safety concerns that should be investigated further through field observations. Researchers also present analysis procedures to guide district personnel in determining the queue lengths, individual vehicle delays, and total vehicle-hours of delay that are created during temporary lane closures in a project.

  • Record URL:
  • Supplemental Notes:
    • Project Title: Developing a Work Zone Safety and Mobility Performance Monitoring Plan for Texas. Report Date: August 2008; Published: September 2009.
  • Corporate Authors:

    Texas Transportation Institute

    Texas A&M University System, 3135 TAMU
    College Station, TX  United States  77843-3135

    Texas Department of Transportation

    Research and Technology Implementation Office, P.O. Box 5080
    Austin, TX  United States  78763-5080

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Authors:
    • Ullman, Gerald L
    • Porter, Richard J
    • Karkee, Ganesh J
  • Publication Date: 2009-9


  • English

Media Info

  • Media Type: Web
  • Edition: Product
  • Features: Appendices; Figures; References; Tables;
  • Pagination: 46p

Subject/Index Terms

Filing Info

  • Accession Number: 01141329
  • Record Type: Publication
  • Report/Paper Numbers: FHWA/TX-10/0-5771-P1, Product 0-5771-P1
  • Contract Numbers: Project 0-5771
  • Created Date: Sep 30 2009 10:30AM