车速对低等级公路弯道路段行驶冲突区域面积的影响

Influence of Vehicle Speed on the Area of Conflict Area of Curved Road Section of Low-grade highway

为了解决山区道路弯道路段事故多发问题,研究山区道路弯道路段冲突区域形成原因,结合某山区四级公路弯道路段,调查其行车轨迹偏移量,并结合不同车速进行综合分析,得出车辆在连续弯道的行驶速度与冲突区域的规律。研究表明:面积随车速增大而增加,上下行冲突区域面积差异明显,车速小于20 km/h时,上行冲突区域面积较大,车速大于20 km/h时,下行冲突区域面积较大;车速大于25 km/h时,车速每增加1 km/h,行驶冲突区域面积增加8.3%。

In order to solve the problem of frequent accidents on curved road sections in mountainous areas,this paper studies the causes of conflict zones on curved road sections in mountainous areas,investigates the trajectory deviation of curved road sections in a mountainous area,and makes a comprehensive analysis with different speeds,and obtains the speed and conflict of vehicles in continuous curved road sections.The law of the region.The results show that the area increases with the increase of vehicle speed,and the area difference between the upstream and downstream conflict zones is obvious.When the vehicle speed is less than 20 km/h,the area of upstream conflict zones is larger.When the vehicle speed is greater than 20 km/h,the area of downstream conflict zones is larger;when the vehicle speed is greater than 25 km/h,the area of driving conflict zones increases by 8.3%with the increase of vehicle speed of 1 km/h.