Abstract: A post assembly for absorbing impact from a vehicle including a footing, an upright post and a hinge region to allow the post to plastically deform relative to the footing. The post is preferably fixed to a lever arm that is connected to the footing via the hinge region, the lever arm and post pivoting away from the footing under load, The lever arm, footing and hinge region are preferably formed from a common base plate. The invention also relates to barrier system that includes multiple post assemblies, and a barrier supported between respective posts of the assemblies.

Abstract: A barrier system including a guardrail, a support to hold the guardrail in position and a fastener to attach the guardrail to the support, wherein the support has a weakened zone to facilitate the fastener releasing from the support when the support is subject to impact forces.

Abstract: A barrier system including a guardrail, a support to hold the guardrail in position and a fastener to attach the guardrail to the support, wherein the support has a weakened zone to facilitate the fastener releasing from the support when the support is subject to impact forces.

Abstract: A barrier system including a guardrail, a support to hold the guardrail in position and a fastener to attach the guardrail to the support, wherein the support has a weakened zone to facilitate the fastener releasing from the support when the support is subject to impact forces.