Abstract: Disclosed is a guardrail including a post and a longitudinal beam, the post and longitudinal beam being linked via at least one fastener and mounting plate. The mounting plate in one embodiment includes a rigid body configured to mate with the at least one fastener; and at least one deformable region or regions about or alongside the body that, in the event of an impact on the guardrail, bends and/or breaks thereby releasing the body from the remainder of the mounting plate and in doing so allowing the post and longitudinal beam to separate. A guardrail post including at least one fastener and at least one mounting plate is also described along with a mounting plate for use in a guardrail assembly.

Abstract: In the above embodiment, the second leg distal end may be shaped to directly enter the slot, the distal end being aligned in a direction parallel and offset relative to the longitudinal cable axis. Also in the above embodiment, the first leg distal end may be shaped as an inverted U-shaped hook, the U-shaped hook being perpendicular and offset relative to the longitudinal cable axis and at least part of the post wall beneath the slot fits within the U-shaped hook once the hanger reaches the final seated position. The end shapes noted above are provided by way of example only and should not be seen as limiting.

Abstract: Disclosed is a guardrail including a post and a longitudinal beam, the post and longitudinal beam being linked via at least one fastener and mounting plate. The mounting plate in one embodiment includes a rigid body configured to mate with the at least one fastener; and at least one deformable region or regions about or alongside the body that, in the event of an impact on the guardrail, bends and/or breaks thereby releasing the body from the remainder of the mounting plate and in doing so allowing the post and longitudinal beam to separate. A guardrail post including at least one fastener and at least one mounting plate is also described along with a mounting plate for use in a guardrail assembly.

Abstract: Disclosed is a wire rope barrier using a cable hanger or hangers retaining a cable against a post and releasing the cable from the post in a tuneable and controllable manner when the barrier is subjected to an impact force and displacement. The hanger includes at least two legs, each with a different axis of rotation relative to the post where the legs are hooked, so the hanger in an impact releases the post from the cable at a predetermined loading and in a controllable and repeatable manner. In one embodiment, the hanger legs extend from a cable holding portion, the legs attaching to opposing sides of the post. In another embodiment, when subjected to a predetermined impact force, at least one hanger releases a retained cable when the at least one leg or a part thereof deforms allowing the cable holding portion to in turn release the cable.