RIIRTM301D Operate a truck or trailer mounted attenuator


All drivers of truck mounted attenuator trucks have one of the most important jobs of all crew members; they are responsible in ensuring all other members of the crews are adequately protected from out of control or errant vehicles in or around a work zone, a trafficable lane or a road reserve.

Truck Mounted Attenuator’s are designed to safely absorb the energy of an inerrant vehicle should it impact into to it.

Drivers must have the knowledge and understanding for work crew safety of correct location, providing suitable shunt forward distance requirements and providing adequate warning systems for work crew and travelling public if possible.

All employees that drive a Truck Mounted Attenuator must as a Duty of Care and Chain of Responsibility receive suitable and adequate training to allow the operator to safely be able to conduct their duties and work commitments. Post training of Truck Mounted Attenuator operators will also include an assessment than every participant demonstrate the correct procedures of conducting pre-start and post operational checks, correct deployment, operational methods and pack-up of Truck Mounted Attenuator, implementing appropriate plans including correct shunt forward distance based on different scenarios.

This training is intended for those who can hold or demonstrate the following:

  • Victorian Construction Induction White Card or interstate equivalent
  • Relevant Drivers Licence
  • RIIWHS205D - Control traffic with stop-slow bat
  • RIIWHS302D - Implement traffic management plan
  • Adequate literacy & numeracy skills
  • Unique Student Identifier (USI) Number


During this course participants will learn:

  • History of TMA’s
  • Definitions
  • Specifications of TMA’s
  • Responsibilities of TMA Drivers
  • Worksite Hazard and Risk Management
  • Guidelines for the Safe operation of TMA
  • Checking for Reported Faults and Defects
  • External Pre-Operational Checks of TMA
  • Internal Pre-Operational checks of TMA
  • Communications Protocol
  • CCTV Operation
  • Functions of Truck Mounted Attenuator
  • Functions of TMA arrow board operations
  • Functions of TMA Variable Message Board
  • Entering and Exiting Traffic with a TMA
  • Safe deployment of Truck Mounted Attenuator
  • Safe deployment of additional Truck Mounted Attenuators
  • Host Vehicle Duties
  • Barrier Vehicle Duties
  • Shadow Vehicle Duties
  • Secondary Shadow (blocker) Vehicle Duties
  • Advance Warning / Tail Vehicle Operations
  • Shunt Forward Distances Tables
  • Shunt Forward Influencing Factors
  • Driver Behaviour
  • Common TMA Deployment Practices
  • Golden Rules
  • Positioning of TMA
  • Safe Pack Up of TMA
  • Safe Stationary Operations
  • Safe Mobile Operations
  • Emergency Planning
  • Incident and Accident Reporting
  • Post Operational Checks of TMA
  • Completion of Vehicle Log Books
  • Traffic Control plans for typical scenarios.
  • Various plans: i.e. Freeway and tollway work, highway work, stationary and mobile work


The program combines face-to-face trainer led theory classes, practical sessions involving small groups, Individual activities and assessment.


  • To safely perform practical activities, participants are required to wear comfortable closed-in shoes.
  • The trainer reserves the right to refuse entry to the class if appropriate shoes are not worn.


  • Participants must provide one form of photo I.D. (E.G. Passport, driver’s licence, proof of age card, student card).
  • Statement of attainment will not be issued if participants do not provide a valid form of I.D.


  • Participants should arrive 15 minutes prior the scheduled starting time of the course to the complete necessary registration paperwork.
  • Basic understanding of English language
  • To complete the course assessments, the basic understanding of reading and writing English is required.

On completion of this 1 day program candidates will receive a Statement of Attainment.

You will receive your statement of attainment as a formal Certificate and in a handy wallet sized credit card format.

Call our TMA training manager directly to discuss your needs

Call Tim : 0458 017 170

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