Research On Simulation Model Of Pedestrian Avoidance And Transcendence Behavior In Subway Stations

With the rapid development of the subway in recent years,the pedestrian subways that accompany the subway station are more and more complicated,and it is more and more complicated.Whether it is between pedestrians and pedestrians,or between pedestrians and the environment,pedestrians are safe at subway stations.It is very important to change.The simulation of pedestrian flow has important significance for the study of pedestrian flow and the optimization of traffic facilities.Therefore,pedestrian flow research has become a key content in the transportation field.On the basis of summarizing the research results of the pedestrian avoidance and transcendence simulation model of metro station experts at home and abroad,this paper studies the avoidance of pedestrians in the two-way area of the straight section of the station and the transcendence of the straight section of the one-way channel of the subway station.Behavior and transcendence behaviors improve the social force simulation model of pedestrians in metro stations.The MATLAB software was used to simulate the original model and the improved model,and the effects before and after the model improvement were compared.Taking Xizhimen subway station in Beijing as the research background,the improved model software was used to simulate the pedestrian avoidance behavior in the straight section of the station platform and the pedestrian crossing behavior in the straight section of the one-way channel,and the validity of the model was verified.The main research contents of this paper are as follows:(1)Based on the platform of the No.2 line of Xizhimen subway station and the one-way channel,the pedestrian pedestrian behavior was investigated and analyzed.The characteristics of the sidewalk avoidance behavior and the one-way channel inner body transcendence behavior of the pedestrian platform were summarized.The pedestrian sideways After avoiding and transcending behavior,the direction of travel of pedestrians has not changed.(2)The Yuan Gao model was improved based on the characteristics of pedestrians'avoidance behavior in the straight section of the subway platform.The ellipse is used to replace the circle in the original model to represent the pedestrian,so that the pedestrian has the side body attribute;combined with the ellipse attribute,the pedestrian spacing is calculated again,and the rotation dynamic equation and the parameter ? are introduced through the relationship between the moment and the force.Make the model better describe the pedestrian side avoidance behavior.(3)The Dawei Zhang model was improved based on the characteristics of pedestrians' lateral behavior in the straight section of the one-way passage of the subway station.The range of pedestrian angles is expanded to 180 degrees.In normal situations,pedestrians can perceive the range of angles of 180 degrees parallel to the eyes.The original model has a relatively small range of angles of view,and the range of pedestrian angles is 180 degrees.The ellipse is used instead of the original model to represent pedestrians.The pedestrian rotation property is retained,the pedestrian spacing is corrected,and the pedestrian side-by-side behavior is increased,and the pedestrian can go straight or accelerate beyond the pedestrian.(4)Using MATLAB software to compile the pedestrian avoidance and transcendence simulation model software before and after the improvement,compare the effects of the model before and after the improvement,and use the software to carry out a case study.Based on the observation platform of the No.2 line of Xizhimen subway station and the one-way channel investigation area,the improved model was simulated by the pedestrian side avoidance behavior of the straight-line segment and the pedestrian side-by-pass behavior of the one-way channel straight section.The simulation results confirmed the model.Effectiveness.