360° TMA Truck Tour

TMA4 – Truck Mounted Attenuator Truck

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An Attenuator Truck
is also referred to as a:

  • Safety Truck
  • Crash Truck
  • Scorpion Truck
  • Impact Attenuator Truck
  • Traffic Control Truck
  • Cushion Truck
  • Hero Truck
  • TMA Truck

A Truck Designed to Absorb Impact

A TMA (Truck Mounted Attenuator) Truck is designed to save lives in your work zone. Our truck, built to meet all work zone safety requirements, is intended to absorb the impact of a high (or low) speed crash, decrease damage made to the vehicle, and save workers’ lives. We are proud of every truck we build. Over the years, we have learned to never settle for a design. Royal is committed to constant improvement, which means our best truck is always the next one we build. Today, Royal’s TMA Truck is considered the model design. We have been fortunate to earn this title through years of engineering our customer feedback right into our custom-built models. Thank you for keeping us at the forefront of this market.

TMA1 Truck

Royal TMA Truck


  • No Racks
  • MASH Attenuator
  • TMA1 Video

TMA3 Truck

Royal TMA Truck


  • HD Racks
  • 33" Man Buckets
  • TMA3 Video

TMA4 Truck

Royal TMA Truck


  • Min Body Length 18'
  • Double-wide Man Buckets
  • TMA4 Video


Royal Autonomous TMA Truck


  • Driverless Operation
  • Leader/Follower Config.
  • ATMA Video

The Truck Mounted Attenuator

What is a truck mounted attenuator?

A Truck Mounted Attenuator or impact attenuator, also known as a crash cushion, or crash attenuator, is a device intended to reduce the damage to structures, vehicles, and motorists resulting from an errant motor vehicle collision. Impact attenuators are designed to absorb the colliding vehicle’s kinetic energy.

Why do I need one?

A truck mounted attenuator, or TMA, is a necessary safety device for all highway work zones. The crash cushion is permanently affixed to a shadow vehicle, which is strategically placed in your lane closure operation. Most states have regulations around the requirements and use of TMAs in highway construction zones. But they’re not all the same. It’s important to know the TMA regulations in your state before setting up your work zone. You could face hefty fines, or worse, massive liability costs if there were to be an injury or death in your work zone. A word to the wise: a MASH tested Attenuator is the best TMA money can buy.

Scorpion Truck Mounted Attenuator

A TMA Truck Protects Your Work Zone

At Royal, we take this very seriously. We don’t cut corners where other manufacturers do. We’ve been in business for over 35 years and have developed the safest standard build for attenuator trucks. We continue to bring safety solutions to the work zone through technology, innovation, and only the toughest quality standards. You can view all of our TMA truck features and options in the flyer below.

Attenuator Truck