A guardrail’s primary function is to deflect an errant vehicle along the rail’s length. The capability of a guardrail structure to deflect a vehicle, at a certain collision angle in its length, can be determined adequate OR substandard, based on how well it actually redirected the vehicle. However, when guardrails fail to do their job as required and cause injury or death, the causes usually are a result of a failure of a mechanism on the guardrail to perform as designed. If a vehicle collides with the end of the guardrail structure, which may or may not have an energy absorbing end treatment, a malfunction can result in catastrophic damage and injury. The engineers at Quality Forensic Engineering, LLC have years of experience in analyzing these types of guardrail incidents. Let us assist you with determining how and why this mechanical phenomenon occurred.