Investigation on the Driving Risk of High-density Over-exchange Group Vehicles Considering Driving Style
In order to analyze the driving risks of drivers of vehicles of different driving styles,a high-density interchange driving test was carried out on the Chongqing Inner Ring Expressway.Vehicle-board instruments were used to collect vehicle driving trajectory,speed and other operating parameters,and parameters such as vehicle speed,acceleration and transverse displacement were extracted through factor analysis and clustering analysis.Based on this,the driving style was divided into three types,namely conservative,conventional and adventurous.Through the trajectory offset in the process of vehicle departure and integration into the main line,the trajectory characteristics of different driving styles were analyzed.The results show that the trajectory offset of adventure drivers is higher than that of the drivers of the other two driving styles,and the distribution of trajectory offset is more scattered.When driving away/instreaming the main line,the adventure driver needs.The lane change time is shorter,the starting position of lane change is higher,and the frequency of lane change is more than the other two driving styles.Speed fluctuation and acceleration fluctuation are used as driving risk evaluation indicators,both sizes are adventurous＞conventional＞conservative.The entropy weight method is used to determine the index weight and get the driving risk rate,which is not Classifying the same driving style,the results show that at the exit of the main line,there are obvious distribution characteristics,that is,the adventure type＞conventional type＞conservative type,while at the entrance of the main line,the driving risk rate of the adventure type and the conventional type is no different,but the distribution of adventure drivers is more discrete.Analyzing the driving risk rates of drivers of different driving styles will help improve the driving safety of drivers.
traffic safetyhigh-density interchangedriving riskdriving stylesmall net distance interchangeoperation track
万方数据
维普
