Truck-Mounted Attenuator (TMA) Trucks for Contractors and Highway Crews
Highway Specialty Equipment builds and upfits truck-mounted attenuator (TMA) units used as shadow vehicles for roadway operations, helping protect crews working in active traffic.
What Is a TMA Truck?
A truck-mounted attenuator (TMA) is a crash cushion system mounted to the rear of a truck. It is designed to absorb impact from errant vehicles, reducing the risk to both the crew ahead and the driver of the attenuator truck.
For any operation working in active lanes, a TMA truck is a key part of jobsite safety.
Who Uses TMA Trucks?
TMA trucks are commonly used by:
- Pavement marking and striping crews
- Highway construction and maintenance contractors
- Municipal and state DOT operations
- Traffic control companies
If your work takes place on or near active roadways, a TMA unit is typically required as part of your traffic control setup.
Build & Setup Options
HSE attenuator trucks are configured to meet DOT requirements and jobsite needs, with options including:
- Approved TMA systems
- Arrow boards and lighting packages
- Bed layouts for cone, sign, and tool storage
- Configurations aligned with fleet standards and specifications
Ready to Get Started?
If you’re adding or replacing a shadow vehicle, we can help you determine the right setup for your operation.
Contact Highway Specialty Equipment for current build options and lead times.
Build Your Attenuator Quote
Tell us what you need and we will help you spec the right truck.
The Right Attenuator Truck Protects Your Crew. Let Us Help You Find It.
Every day your crew works on an active roadway, the shadow vehicle behind them matters. HSE helps contractors build attenuator trucks that are properly equipped, compliant, and ready to do the job they were built to do – protect the people in front of them.
Do not settle for a unit that leaves you guessing on specs or safety ratings. Reach out to the HSE team and get straight answers on what we have available and what will work best for your operation. Browse our full lineup of highway specialty trucks for sale including paint trucks, and our parts and tooling inventory while you are here.