MATTTM Median Attenuating TREND® Terminal

MATT is a tangent, double-sided, redirective/gating and energy-absorbing attenuator/end terminal, for use with various longitudinal highway barriers in either unidirectional or bidirectional traffic applications – to include roadside, shoulder, median, and gore installations.

MATT is tested to MASH-2nd Edition (with 2020 Errata) Test Level 3 criteria and may be used in Test Level 1, Test Level 2, and Test Level 3 applications – when installed at the full Test Level 3 system length of 34′ 4-1/2″ [10.48 m].

Description

During head-on impacts within MASH criteria, MATT is designed to dissipate energy by engaging the energy-absorbing technology of the device.

During length-of-need side impacts within MASH criteria, MATT is designed to contain and redirect the impacting vehicle.

 

*After an impact, the product must be inspected and evaluated per the direction of the specifying roadway authority. The ultimate decision on reparability rests with the specifying roadway authority and/or state DOT.

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Features

  • Shortest MASH tested Median Terminal.
  • Galvanized steel components reduce weather/ UV related issues.
  • During testing, debris field was significantly contained.
  • Utilizes patented TREND® technology to absorb energy.
  • ALL post spacings are 6′ 3″ [1.905 m] on center.
  • Connects directly to double-sided Midwest Guardrail Systems (“MGS”) W-beam with 8″ (200 mm) blockouts.
  • Connection to double-sided Midwest Guardrail Systems (“MGS”) W-beam with 12″ (300 mm) blockouts can be achieved through the use of transition drawing SS6289.
  • Applications include Median, Roadside, Shoulder and Gore installations, for both approach and departure installations.

Specifications

  • System Weight: ~1,525 lbs. [~692 kg]
  • System Length: 34′ 4-1/2″ [10.48 m]
  • System Width (at impact head): 2′ 5″ [737 mm]
  • System Height (except impact head): 31″, +1″, -0” [787 mm, +25 mm, -0 mm]
  • Beginning Length-of-Need (“BLON”) established during MASH Test 3-35 at Post #3, 12′ 6″ [3.81 m] from Post 1.

Product Images

Product Documents

PI Sheet 

MATTTM Median Attenuating TREND® Terminal

Manuals 

MATTTM Product Description Assembly Manual

Drawings

MATTTM SS-6289V – RevB Transition to 12in block MGS Median GR

MATTTM System – SS-6288V

MATTTM System – SS-6287V Transition to 27.75in (G4) Median GR