It is mainly installed between guardrail and post to reduce the crash collision of highway/expressway/roadway.Bock itself is an energy absorbing part,so it could make theguardrail deform gradually during the sudden collisions.thus is conducive to energy absorption, reduce occupant casualties;at the same time,the block could allocate the crash energy to guardrail and post,thereby increase the overall strength and tension of the guardrail system.
U-shaped block is a relatively simple highway guardrail connection, it is made of strip steel through punching and bending, the production process is simple, generally with U-shaped post or C-shaped post collocation to form a high-speed guardrail assembly. The U-shaped block is connected with the guardrail plate by bolts on one side and the post on the other, which acts as a link between the above and the below. It is necessary to tighten both the transverse guardrail plate and the vertical column, so as to effectively prevent the runaway vehicle from rushing out of the road and avoid accidents.