Transformation Mechanism Of Driver’s Propensity Under Dynamic And Complicated Multi-lane Conditions

With the increase of vehicles,traffic problems are becoming more and more serious in the limited land areas,which present mainly on the increase of traffic accidents.Above 90%factors of traffic accidents are human factors and above 70%traffic accidents are caused by drivers.Driver’s physiological and psychological characteristics are related closely to traffic safety and the influences on traffic safety are represented mainly as driver’s propensity,namely,the driver’s psychology toward traffic condition and the corresponding preference of driver’s decisions and behaviors under the influence of all dynamic factors.Traffic system is a complex,volatile and giant system including human,vehicle and environment.Environmental change,especially the change of vehicle group relationship that reflects the complexity of traffic situation is frequent especially in the system and its influence on driver’s affection is significant.It tends to stimulate the evolution of driver’s propensity.Driver’s propensity is a dynamic measurement of controller’s affection,preference and others in process of driving.It often shifts with the variability of complex vehicle groups,and guides the drivers,intent.The previous studies focus mostly on the analysis of drivers’ emotion,character and driving behaviors from relative static and macroscopic perspective.Few researches on the evolution of drivers’personality,psychology and emotion have been conducted under time varying conditions.In this paper,in order to predict driver’s propensity,it is divided into five types:conservative type,common-conservative type,common type,common-radical type and radical type.Firstly,take three-lane condition as an example,the vehicle group states can be recognized through analyzing its types maybe formed under three-lane conditions.And transformation mechanism of vehicle group relationship also can be revealed in complex environment.Secondly,data of driver’s propensity can be collected and analyzed through driving experiments in different environments from the angle of environmental change,especially from the angle of vehicle group evolution that reflects the complexity of traffic situation.Therefore,driver’s propensity transformation mechanism can be revealed under the evolution of complex environment conditions.Thirdly,the influences of vehicle group relationships on driver’s propensity at different times can be analyzed from angle of vehicle group relationship evolution.Therefore,driver’s propensity transformation mechanism can be revealed.Verification results show that the prediction of the driver’s propensity transformation is accurate and the study provides a theoretical basis for the research of the driver ’s affection and vehicle safety driving assistant systems.