Study On Pedestrian Crossing Behavior In Uncrosswalk Section

Pedestrians are an important part of the traffic system.Compared with other road users,pedestrians are more likely to be involved in traffic accidents.Compared with pedestrians walking on the road marked with crosswalk,pedestrians who do not use crossing facilities to cross the road are more likely to have conflict accidents with motor vehicles.This is because when pedestrians cross the street in an unspecified middle section,the location of the crossing is unknown to motor vehicle drivers.So in most cases,drivers don’t realize where pedestrians will pass.Even if the driver sees the pedestrian,because the right of way priority of the pedestrian and vehicle is not set on the road section,it will lead to confusion of which party will yield to.In this paper,first of all,the field data investigation of the research section is carried out to analyze the influencing factors of pedestrian crossing in the unmanned crosswalk section.Based on the data collection results,the macro characteristics of pedestrian crossing in the unmanned crosswalk section are summarized,and the significant and non significant factors that affect pedestrian crossing time,pedestrian waiting time and pedestrian safe crossing distance are distinguished.Combined with factor analysis and binomial logistic model theory,this paper divides the influence degree of factors on pedestrian or vehicle behavior selection in this road section from the dual perspectives of pedestrians and vehicles crossing the street,and classifies the attribute of influence factors.Then,combining the theory of mental field with the model of pedestrian social force,the micro simulation model of pedestrian in the section of pedestrian crossing is constructed.The parameters of the model are calibrated by the maximum likelihood estimation function,and the simulation results are simulated by MATLAB software platform to simulate the typical path path of pedestrian crossing in the section and verify the validity of the model.According to the simulation path with the least root mean square error,the force components of pedestrian crossing and vehicles are solved.Finally,according to the changing law of pedestrian crossing behavior and motor vehicle behavior,the corresponding pedestrian management suggestions are proposed.The innovation of this paper is mainly reflected in the following aspects:(1)Select the pedestrian crossing section as the research site,judge the influence degree of factors on pedestrian or vehicle behavior selection from the dual perspectives of pedestrians and vehicles,and divide the influence attributes of the influence factors.(2)The concept of psychological field is introduced into the social force model,and the pedestrian crossing model is constructed based on the theory of psychological field,so as to further improve the pedestrian simulation crossing model at the section where there is no pedestrian crossing.In addition,the changes of pedestrian and vehicle forces in the simulation results are divided into components,and the change rules of pedestrian and vehicle forces in the process of crossing the street are further explored,and corresponding management opinions are given.