• 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

Minimum Sign Retroreflectivity Requirements

Abstract:

Highway statistics reveal a nighttime accident rate that is more than three times the daytime rate. While factors such as intoxication and fatigue are partly responsible for this disparity, reduced visibility also plays a major role. In this study, FHWA developed a model that would predict needed retroreflectivity on a case-by-case basis, considering all critical determining factors, and proposed minimum sign retroreflectivity guideline values. These values were further evaluated by a laboratory study and a field evaluation. The final minimum sign retroreflective values were submited to FHWA’s Office of Highway Safety for rule making.

Publisher: Federal Highway Administration, Turner-Fairbank Highway Research Center
Publication Date: 2012
Full Text URL: Link to URL
Publication Types: Manuals, Policies, Guidelines, and Handbooks, etc.
Topics: Retroreflectivity

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