Behavior Analysis And Mental Field Modeling Of Pedestrian Crossing In Urban Section

With the rapid development of urbanization in China,the urban roads are becoming wider and wider,and the road structure is becoming more and more complex.Non plane crossing facilities such as overpass and underpass are often not friendly to pedestrians,which makes pedestrian crossing time-consuming and laborious.However,the relatively convenient traditional plane crossing facilities do not consider the unreasonable setting caused by the change of psychological pressure when pedestrians cross the street,which makes pedestrians lack the sense of safety when they cross the street.This paper attempts to analyze pedestrians crossing the street from a psychological point of view,focusing on the influence of crossing facilities,traffic environment and pedestrian’s own psychological characteristics on the psychological pressure of pedestrians crossing the street,establishing a comprehensive psychological field model of pedestrian crossing in urban sections,so as to quantify the changes of psychological pressure of pedestrians crossing the street,and taking this as a reference Enhance the sense of pedestrian crossing safety and the friendliness of crossing facilities.Then,according to the development stage of human psychology,pedestrians are divided into five categories,and the psychological characteristics of pedestrians in different stages are analyzed.Through two ways of field investigation and questionnaire investigation,this paper investigates the psychological characteristics of pedestrians when they cross the street,and analyzes and processes the survey data,which lays a foundation for the subsequent establishment of the part about pedestrian characteristics in the framework of psychological field model.Then,this paper designs the mental field model framework of pedestrian crossing by using the basic ideas and logical relations of mental field theory,determines the medium potential line of mental field and the expression of basic field strength,and establishes the mental field strength model of pedestrian crossing.Then,according to the data obtained from the questionnaire,the membership function of each parameter in the model is established,and the AHP and entropy weight method are combined to form the AHP entropy weight combination weighting method,which weights the parameters in the model.Finally,combined with the previous research results,a complete mental field comprehensive model of pedestrian crossing is constructed.Finally,the heart rate data of pedestrian crossing is collected to verify the accuracy of the mental field model of pedestrian crossing.Through two experiments,the heart rate changes of the same type of pedestrian passing through different crossing facilities and the heart rate changes of different types of pedestrian passing through the same crossing facilities were observed,and the observed data and the data calculated by the model were compared.The experimental results show that the mental field model of pedestrian crossing in urban section can better reflect the changes of mental pressure of different types of pedestrians when passing through different crossing facilities with different traffic environment,and put forward several possible application prospects of the model.