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4F-TTM (4 Foot Flared TREND® Terminal)

The 4F-TTM is a flared, single-sided, redirective/gating and energy-absorbing guardrail end terminal for use in roadside and shoulder installations to include approach or departure applications.

4F-TTM 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].

During head-on impacts within MASH criteria, 4F-TTM is designed to dissipate energy by engaging the energy-absorbing technology of the device. During length-of-need side impacts within MASH criteria, 4F-TTM is designed to contain and redirect the impacting vehicle.

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Features

  • Installed with a 4′ [1.22 m] flare to reduce nuisance impacts and length of barrier required to shield a hazard.
  • Only Post 1 has a 6′ [1.83 m] embedment.
  • During testing, debris field was significantly contained.
  • Shortest MASH tested Flared End Terminal.
  • Galvanized steel components reduce weather/UV-related issues.
  • The 4F-TTM utilizes a universal slotted TREND® 10 gauge W-beam panel at all locations.
  • ALL post spacings are 4’2″ [1.270 m] on center.
  • Connects directly to single-sided Midwest Guardrail Systems (“MGS”) W-beam.

Specifications

  • System Weight: ~1,300 lbs. [~590 kg]
  • System Length: 34′ 4-1/2″ [10.48 m]
  • System Width (at impact head): 12″ [305 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 #4, 12′ 6″ [3.81 m] from Post 1

 

Product Images

 

Product Documents

PI Sheet 

4F-TTM

Manuals

4F-TTM Product Manual

Drawings

SS4380
SS4381
SS4382