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    U-MAD® Truck Mounted Attenuator

U-MAD® Truck Mounted Attenuator

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The U-MAD® truck mounted attenuator (TMA) offers outstanding performance, excellent life cycle costs and quick, simple refurbishment. The U-MAD® TMA is available from ACP through its relationship with international road safety specialist Lindsay Transportation Solutions.

TMA’s are predominantly used for protection for static worksites in high speed environments where there is a traffic/worker interface – such as construction zones - and asshadow vehicles for high risk mobile works such as line marking, maintenance, rubbish collection and barrier repairs on highways. They are compulsory in most Australian states.


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  • Low cost, lightweight, reusable
  • Passes all mandatory and optional NCHRP 350 TL-2 and TL-3 tests with an arrow/message board installed
  • Can be used in any environment
  • Offers a variety of quick mounting options to make deployment and removal safe and easy
  • Engineered to keep the impacting vehicle and support vehicle in the travel lane even after angle impacts



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PDF Icon U-MAD Installation Manual 2 MB
PDF Icon U-MAD Brochure 589 KB


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Crash tested to NCHRP 350 TL-2 and TL-3 criteria


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  • Length: 419 cm
  • Width: 229 cm
  • Height in storage position: 381 cm
  • Weight: 590kgs

Installation and maintenance

The U-MAD® has a 3-part system – mount/attachment, L-lift and cartridge. Only the cartridge needs replacing after a typical design impact.

The replacement procedure is very simple. All that is required is removing and replacing a cartridge, two bolts and a cylinder pin. For further details, refer to the Installation Manual.

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