Research On Microscopic Mode Of Pedestrian Flow In Urban Rail Transit Station

Recently,with a large expansion in rail transit construction and operation,rail transit shows its increasingly important impact on residents’ daily trip,and the organization of pedestrian in urban railway station will influence the efficiency of pedestrian movement or even the safety when with high density pedestrian.Thus,the research on traffic feature of pedestrian flow in urban rail transportation station reveals its research and practical value.The pedestrian flow in urban rail transportation station has been seen as the main research target in this thesis.A micro model on the basis of micro-aspect research has been established as well as the foundation of evaluation has been formed on the result of microscopic simulation model on the basis of macro-aspect research.The main achievement of this thesis includes:The data collection of urban rail transit pedestrian flow.Based on the environment of urban rail transit station,a pedestrian data was collected based on an Android mobile phone built-in acceleration sensor whereas video capture methods as an aid.By this combination,the on-the-spot observation and collection of urban rail transit pedestrian traffic data in Nanjing have been realized,and the collected data was analyzed to extract the parameters related.The analysis on traffic feature of urban rail transit pedestrian flow.Based on the practical observation and data analysis,the micro features of pedestrian behavior and the macro features of pedestrian flow have been analyzed in this passage.Besides,viewing above analysis and the factors that affect the micro features of pedestrian behavior,the moving laws of pedestrian flow in urban transportation station have been summarized.The relationship between the pedestrian flow fundamental diagrams in the corridors,station halls and stairway facilities in urban rail transit stations was analyzed,and the Logit discrete selection model for pedestrians’ selection behavior of stairs and escalators was constructed.The foundation of micro model of urban rail transit pedestrian flow and simulation.Micro model of pedestrian flow in urban rail transit has been constructed in accordance with the factors affecting the micro features of pedestrian behavior and traffic features of pedestrian flow.Meanwhile,a computer microscopic simulation platform has been developed centering on this model,which has been utilized to conduct evacuation simulation of pedestrian in different occasions and verifies the effectiveness of above model by using the pedestrian fundamental pattern and self-organized characteristic.