基于“两客一危”数据的高速公路服务区路段车辆行驶模式研究

Research on vehicle driving pattern in expressway service section based on “long-distance bus and truck” data

基于"两客一危"数据,以沈海高速公路厦门段为例,通过浮动车的GPS时空图发现高速公路服务区路段车辆行驶特征,同时选取车辆的平均速度、最低速度、速度方差等车辆运行特征指标进行层次聚类,得到服务区路段车辆的行驶模式.研究结果表明,高速公路服务区路段存在3种行驶模式,即进出服务区、正常行驶和交织减速,基本可以代表车辆在服务区路段的实际运行状态.

Based on the data of “ long-distance bus and truck” data, taking the Xiamen section of Shen Hai expressway as an example,the vehicle driving characteristics in expressway service section are found by means of the GPS spatial- temporal diagrams of the floating car. At the same time,the average velocity,the minimum velocity and the velocity variance of the vehicle are selected to carry out hierarchical clustering to get the vehicle driving pattern in the service section. The results show that there are three kinds of driving pattern in expressway service section, namely,in and out of service ar-eas ,normal driving and weaving deceleration,which can represent the actual running state of the ve-hicle in service section.