基于驾驶人特性的高速公路改扩建工作区上游限速值研究

Speed Limit Value at the Upstream of Highway Reconstruction and Expansion Work Zones Based on Driver Characteristics

为了降低高速公路改扩建工作区的事故率,开展了工作区上游车速限制研究。基于驾驶人昼夜制动特性和视认特性,研究确定了驾驶人制动距离模型及视认距离模型,构建了分级限速标志之间限速值的关系模型,确定了工作区上游限速值的计算方法,并将该方法应用于珲乌高速公路吉林市至龙嘉机场路段改扩建工程中,证实了构建的限速值计算模型的合理性。

In order to reduce the accident rate at the upstream of freeway reconstruction and expansion work zone,the speed limit at the upstream of work zone was studied.Based on drivers braking characteristics and visual cognition characteristics,the drivers braking distance model and recognition distance model were determined,the relational model of speed limit value between the gradient speed limit signs was constructed,and the calculation method of speed limit value at the upstream of wok zone was determined.Finally,this method was applied to calculate the speed limit value at the upstream of the reconstruction and expansion work zone from Jilin to Longjia Airport section of Hui-Wu expressway.