Comprehensive Evaluation Method Of Motor Vehicle Driver’s Risk Perception Ability

According to statistics,more than 80% of traffic accidents are caused by drivers.The main reason of traffic accidents caused by drivers is that the driver’s subjective assessment ability of risk(that is,the driver’s risk cognitive ability)is insufficient,and cannot accurately perceive the surrounding risks in time,which leads to the wrong driving behavior.Driver’s risk perception ability is affected by many factors,among which driver’s psychological factor is one of the important factors.Therefore,based on the theory of traffic psychology and the characteristics of risk driving behavior,this paper analyzes the composition of risk cognitive ability of motor vehicle drivers from the psychological factors of drivers,constructs the evaluation index system of risk cognitive ability of motor vehicle drivers,and establishes the grey fuzzy comprehensive evaluation model based on Analytic Hierarchy Process to evaluate the risk cognitive ability of drivers.The main research contents are as followsFirst of all,according to the basic theory of traffic psychology,the formation mode of driver’s driving behavior is analyzed.On this basis,considering the driver’s risk cognitive ability,this paper analyzes the driver’s risk driving behavior,which provides a research basis for the construction of the psychological evaluation index system of motor vehicle driver’s risk cognitive ability.Secondly,based on the influencing factors of driver’s risk cognitive ability and driver’s psychological factors,the evaluation index system of motor vehicle driver’s risk cognitive ability is established.The evaluation index system of drivers is divided into three parts:natural physiological attributes,psychological process elements and personality psychological characteristics.The specific composition of these three parts is introduced in detail,and each index is quantified and graded.Thirdly,considering the characteristics of the index system,the grey fuzzy comprehensive evaluation method based on Analytic Hierarchy Process is constructed to evaluate the driver’s risk cognition ability.Among them,Analytic Hierarchy Process is used to determine the weight of all levels of indicators,grey correlation method is used to determine the correlation between indicators,and fuzzy evaluation method is used to quantify indicators.Finally,50 drivers who have had a responsible traffic accident in three years and 50 drivers who have not had a traffic accident in three years are selected to collect and evaluate the psychological index data,which preliminarily verifies the effectiveness and rationality of the evaluation index system and evaluation method proposed in this paper.