TMA Truck Facts

TMA Crash Truck Facts

TMA TRUCKS - RENTALS - SALES - SERVICES - PARTS  |  Phone: (973) 347-1101 Fax: (973) 347-0064  |  Hours: Mon - Fri  7:30am to 4:30pm

TMA Truck Facts.

“The Basics”.

Scorpion attenuators made by TrafFix Devices, requires that the truck and the attenuator is attached to weigh at least 20,000 lbs. to achieve acceptable attenuator function when struck.

  • SPA designed a custom body to accept concrete for ballast in order to meet specifications
  • SPA ensures that when our attenuators are deployed they are approximately 12 inches off the ground in order to be at the proper height for impact from an oncoming vehicle.
  • SPA installs all of our attenuators in order to guarantee proper deployment and function.
    All of our used trucks go through an extensive 53 point inspection and any parts not up to factory standard are repaired or replaced.
SPA TMA Truck Brochure

SPA TMA Truck Brochure

Free Download

New Jersey highway safety standards are some of the strictest in the country. All of our SPA trucks are built to NJ standards.

Some NJDOT standards:

  • NJ DOT Certificatied TrucksTMA trucks must be a minimum of 21,000 lbs. The weight must be attached to the truck in a manner that does not allow it to turn into a projectile if the truck is hit
  • All of the controls for the attenuator and arrow board must be in the cab so the driver does not have to step into traffic to operate them.
  • The bottom of the arrow board should be approximately 7’ off the ground when it is deployed.
  • Amber lights must be visible from 360 degrees.

D.O.T. Downloads

National Cooperative Highway Research Program – NCHRP Report 350 – Recommended Procedures for the Safety Performance Evaluation of Highway Features

MASH Guidelines for TMA Truck Attenuators – MASH guidelines for crash testing permanent and temporary highway safety features and recommends evaluation criteria to assess test results. Not only does it further expand on the testing requirements listed in the NCHRP Report 350, but it also offers guidelines for when MASH tested and approved attenuators must be used on your TMA trucks.

"MANUAL for ASSESSING SAFETY HARDWARE" created by AASHTO (Association of State Highway and Transportation Officials)


SPA TMA Attenuator Trucks are among the best designed, fabricated, and serviced in the USA today and meet NJ DOT Certification. NJ DOT has very stringent standards for highway safety for road work at SPA has met the requirements for those standards. One such standard is to keep the driver in the cab during the operation of the TMA truck. All controls are mounted in the cab so that the TMA and arrow board can be deployed without the driver ever having to leave his or her seat, thus ensuring that even the worker operating the equipment that is first in line protecting a job site is also in a safer environment.

TMA trucks are also referred to as…

TMA trucks are also commonly referred to as crash trucks, attenuator trucks, shadow trucks, bump trucks, and safety trucks.

Have a TMA Attenuator Truck Question? Call (973) 347-1101 right now for an answer.

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TMA Attenuator Truck Headquarters - Sales, Service & Parts

S.P.A. Safety Systems LLC.
278 Old Ledgewood Rd
Flanders, NJ 07836

Contact & Directions

Call: (973) 347-1101
Fax: (973) 347-0064

Hours of Operation
7:30am to 4:30pm

TMA, Cone, and Scissor Lift Trucks Rentals and Custom Built to Your Specifications.



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