Road restraint systems-RRS are passive safety designs installed on roadsides to ensure the safety of errant vehicle passengers as well as pedestrians. The adequacy of these systems is assessed through full-scale vehicle crash testing for which evaluation criteria are determined by standards such as EN1317. Recently the same RRS is crash tested two times with two different 900 kg passenger cars and test results varied significantly. After a failed crash test instead of modifying the barrier test vehicle was replaced and the same test was repeated. It was surprising to see that the failed RRS this time satisfied the EN1317 evaluation criteria. Despite the use of the same mass vehicle in the crash tests, the different results obtained were a source of motivation for investigating the inadequacy of EN1317. In this study, the adequacy of the 900 kg vehicle criteria used in the determination of the safety parameters in the EN1317-TB11 test was investigated by creating validated finite element-FE models. After the FE analysis it was concluded that test vehicle properties, such as vehicle mass and velocity provided in EN1317 are deemed to be insufficient and more explicit vehicle selection parameters, given in the study, are needed to provide safer and more uniform crash testing results.

道路约束系统-RRS是安装在路边的被动安全设计，以确保错误车辆乘客和行人的安全。这些系统的充分性通过全面的车辆碰撞测试进行评估，评估标准由 EN1317 等标准确定。最近，同一 RRS 对两辆不同的 900 公斤乘用车进行了两次碰撞测试，测试结果差异很大。在失败的碰撞测试而不是修改障碍测试后，车辆被更换并重复相同的测试。令人惊讶的是，这次失败的 RRS 满足了 EN1317 的评估标准。尽管在碰撞测试中使用了相同的质量车辆，但获得的不同结果是调查 EN1317 不足之处的动力来源。在这项研究中，通过创建经过验证的有限元有限元模型，研究了用于确定 EN1317-TB11 测试中安全参数的 900 公斤车辆标准的充分性。有限元分析后得出的结论是，EN1317 中提供的车辆质量和速度等测试车辆特性被认为是不够的，需要在研究中给出更明确的车辆选择参数，以提供更安全和更统一的碰撞测试结果。