基于风险分析的山区道路车辆行驶安全评价

Safety Evaluation of Vehicle Driving on Mountainous Highways Based on Risk Analysis

针对山区道路车辆行驶安全及潜在危险路段的辨识问题,在分析山区道路主要事故形态特征的基础上,从车辆动力学角度出发,基于风险分析理论,以车辆行驶过程中可能出现的侧翻、侧滑、侧向偏离、纵坡倒溜等事故特征为评价指标,建立了山区道路车辆运行安全评价模型,用风险指数来反映车辆在山区道路行驶时事故发生的可能性。通过对实际道路车辆行驶安全性评价表明,所建立的安全评价模型能定量计算车辆在实际道路行驶时的安全指数,并能分析道路全线的潜在风险情况,为山区道路与车辆之间的协同安全评价提供了一种有效方法。

In order to improve the safety of vehicle driving on mountainous highways and identify hazard road locations,from the view point of dynamic,through analyzing the features of accident style on mountainous highways and based on the theory of risk analysis,in this paper the safety evaluation model of vehicle driving is put forward which use vehicle rollover,sideslip,lateral deviation and the longitudinal slip occurred in the process of driving as the safety evaluation index and risk index to reflect the possibility of accident happened in the process of vehicle driving.The actual safety evaluation of driving on mountainous highways shows that this method can not only quantitatively analyze the safety of the vehicle driving but also visually display the risks of driving along the road,which offers an effective way for synergetic safety evaluation between mountainous highways and vehicles.