The MASH testing standard uses heavier vehicles and a wider range of impact angles for terminal testing, including 5˚ and 25˚ impacts. This results in a significant increase in impact energy when compared to the old NCHRP-350 terminal testing. The current Australian Standard AS/NZS 3845.1:2015 Road Safety Barrier Systems nominates MASH as the basis of testing procedures for road safety barrier systems.
The ET-SS system uses a proprietary head with front anchored technology to anchor the W-Beam from the loads exerted on the rail during an end-on or side vehicle impacts on the terminal. This front anchor also minimises the deflection of the downstream guardrail system to help contain and redirect an errant vehicle.
From end-on impacts within the MASH criteria, the W-Beam guardrail is flattened as it is guided through the head to the front anchor, this absorbs impact energy from the errant vehicle bringing it to a controlled and gradual stop.
The system has been fully crash tested to MASH TL3 and MASH TL2 as a re-directive, gating end terminal.
The ET-SS end terminal is available in two sizes. The compact 7.89m MASH Test Level 2 terminal is an economical solution for application for posted speeds up to 70km/h. The standard 15.48m MASH Test Level 3 terminal is acceptable for all posted speeds greater than 70km/h.
ET-SS transition to Ezy-Guard High Containment