Simulation And Optimization Of Large Passenger Flow Organization In Urban Rail Transit Interchange Station

In recent years,with the rapid increase in urban transportation demand,urban rail transit has shown great time-efficiency in its internal transportation modes due to its large capacity,speed,low pollution,less land occupation,independent road rights and economy,has gradually become the first choice for alleviating urban traffic jams.In the urban rail transit system,the interchange station serves as a key node for passenger flow exchange between the various lines within the system,under peak passenger flow conditions,it is necessary to study how to rationally optimize its passenger flow organization through various measures to improve the efficiency of the passenger flow organization to the entire system plays a decisive role.Based on the above analysis,this paper takes the simulation and optimization of large passenger flow organization in urban rail transit interchange stations as the research object,and specifically completes the following work:(1)Analyze the space requirements and walking speed characteristics of pedestrians in the interchange station from the static and dynamic dimensions,comb the general laws of pedestrians walking in the interchange station,and combine Characteristic analysis of different types of facilities and equipment was carried out,summarizing the impact on the capacity of facilities and equipment in the interchange station.(2)The problem of optimizing passenger flow organization at the transfer station should first be identified to the bottleneck of the passenger flow organization.The cause of the bottleneck of the passenger flow organization was analyzed in detail from the passenger flow level,facility equipment level,and operation organization level.The difference in equipment layout may cause the bottleneck situation of passenger flow organization.The concept of key passenger flow and key facility equipment is proposed,and the optimization steps of the passenger flow organization of the transfer station are clarified.(3)Through the analysis and application of the pedestrian flow social force model principle,combined with the Stapass simulation software,the parameters involved in the case analysis are calibrated,and verified in two steps by comparing the measured and theoretical values and the capacity test The accuracy of the calibration results is clear.(4)Based on the Stapass simulation software,taking the Shenzhen Metro Laojie Station as a specific case,based on the passenger flow classification data,completed the simulation of the current passenger flow organization of the Laojie Station during peak hours,and identified key passenger flows and key facilities and equipment.According to the problems exposed in the simulation of current passenger flow organization combined with key passenger flow and key facilities and equipment,a two-step passenger flow organization optimization plan was proposed to discuss the simulation effect before and after optimization.The various types of density distribution maps and key passenger flow data output by the system The evaluation index compares the passenger flow organization plan before and after optimization in detail.On the basis of the second-step optimization plan,based on the premises assumed in this paper,the passenger flow organization simulation after the new line 17 is completed is completed,and the passenger flow organization optimization and facility equipment layout in Laojie Station under the new line access conditions are completed.Add or adjust questions to provide reference suggestions.