X-350 (X-TensionTM) guardrail end terminal product
The world’s first and only fully re-directive TL-3 end treatment for w-beam guardrail, the X-Tension™ utilises unique technology whereby the system uses tension, rather than compression like other systems, to control vehicle impacts. In an end on impact the system telescopes and relies on a braking device to contain the vehicle. While for side impacts the anchor design and use of cables ensure that the vehicle is re-directed from post 1. The X-Tension™ can be used in a tangent position and out to a straight flare of 400mm over its 11.4m of length. X-Tension™ in a tangent position (0 – 400mm) has satisfied NCHRP 350 TL-3 criteria.
The X-Tension™ was subjected to further compliance testing where the components of the terminal end remained totally unchanged. This time however the flare rate was extended out to 1200mm, over the entire 11.4m of the system, rather than 400mm as per the tangent testing. Resulting in a w-beam guardrail terminal end that can be used in flared applications. X-Tension™ in a flared position (400 – 1200mm) has satisfied NCHRP 350 TL-3 criteria.
The median version of the X-Tension™ is the ideal solution when an end treatment is required on back to back w-beam guardrail in a median location or where vehicle impacts can be on either side of the terminal end. The median version is basically a tangent X-Tension™ with a second side of key components added which in turn make a double sided system. The X-Tension™ is a fully re-directive end treatment and is extremely cost effective when compared to traditional crash cushions. X-Tension™ median has satisfied NCHRP 350 TL-3 criteria.
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