• 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
Practice

Vehicle warning lights

The Michigan DOT has not conducted specific research regarding vehicle warning light effectiveness.
Rotating halogen, strobe, and LED vehicle warning lights are allowed on DOT vehicles.
The following documents address the types of vehicles that Michigan DOT requires to use warning lights:
— S&P2741-1.pdf
— S&P2741-2.pdf
The department has not encountered any difficulties in the types of warning lights uesd.
The department does not track the age and effectiveness of lights on state-owned vehicles.
The department requires warning lights for private contractor vehicles in work zones when working near or on an active traveled roadway.
The department does not have any specific language regarding specifications for vehicle warning light use. Each purchaser uses his or her own discretion.
LED lights can be the sole warning light on vehicles.

State/Agency: Michigan
Notes: Jim Gaus, [email protected] is the contact person for the state for more information on vehicle warning lights.
Topics: Warning Lights

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