Operation and Application Truck-Mounted Attenuators (TMAs) Course



Course Length

Half day/4 hours (Classroom and Online options)

For the full course description, prerequisite information, CEU value and registration information, click here.



  1. Introduction
    • Definitions
    • Requirements
  2. Application of TMAs
    • Federal temporary traffic control standards and guidelines
    • Types of highways and lane closures
    • Typical uses, positioning, etc.
    • Arrow boards
    • Mobile and stationary operations
  3. Operation of TMAs
    • Different types of TMAs
    • Crash-testing requirements
    • Properties/component parts
    • Conspicuity tape, ballast, lights, mounted signs, etc.
  4. Personal Safety Considerations
    • Apparel, equipment storage, etc.
    • Entering/exiting TMA
    • Entering/exiting traffic
  5. TMA Operator Responsibilities
    • Inspection of the TMA
    • Operational checks
  6. Closing and Exam


Classroom Course:

Register Now Course Description


Online Course:

Register Now Course Description



  • The American Traffic Safety Services Association
  • 15 Riverside Parkway, Suite 100
  • Fredericksburg, Virginia 22406-1077
  • Telephone: (800) 272-8772



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