抄録
Collision with roadside objects such as trees, utilities and guardrail are a major road-safety problem and reported the highest rate of side-impact accidents on roadways in which about 225,000 people have been involved. In this study the common methods to evaluate occupant risk factors involving in crash to roadside barrier systems are reviewed. The collected previous real crash test on guardrail system with regards to occupant impact risk factors are prepared based on different system performance. Higher average for longitudinal impact velocity for Thrie-beam system is found. On the other hand, Weak-post system is provided less severe system in terms of longitudinal impact velocity.
