Evaluation of Green Lights on TMAs

Mobile work zones for various types of moving operations such as striping, sweeping, and pothole filling are an important component of maintaining highways. The Manual on Uniform Traffic Control Devices (MUTCD) provides guidance for the layout for mobile work zones. Yellow and white lights are typically used on the truck mounted attenuator (TMA) to help draw motorists’ attention to the moving work zone. Despite these precautions, some drivers do not respond to warnings and collide with the TMA. One method for increasing the effectiveness of warnings involves the use of alternative colored lights, such as green, on a TMA. A pilot study of green lights on TMAs was undertaken by MoDOT in 2016 at Lee’s Summit Airport. This study will build upon the MODOT pilot study by evaluating driver performance under different light configurations in both simulator and field environments.


    • English


    • Status: Active
    • Contract Numbers:


    • Sponsor Organizations:

      Missouri Department of Transportation

      1617 Missouri Boulevard
      P.O. Box 270
      Jefferson City, MO  United States  65102
    • Project Managers:

      Harper, Jennifer

    • Performing Organizations:

      University of Missouri, Columbia

      Department of Civil Engineering
      Columbia, MO  United States  65211
    • Principal Investigators:

      Brown, Henry

    • Start Date: 20170426
    • Expected Completion Date: 20180615
    • Actual Completion Date: 0

    Subject/Index Terms

    Filing Info

    • Accession Number: 01648659
    • Record Type: Research project
    • Source Agency: Missouri Department of Transportation
    • Contract Numbers: TR201722
    • Files: RiP, STATEDOT
    • Created Date: Oct 20 2017 5:21PM