Optimization And Evaluation Of Subway Station Passenger Flow Organization Based On Passenger Flow Line Sensitivity Under Morning And Evening Peak Passenger Flow

With the development of urban rail transit in recent years,the passenger traffic of urban rail transit has been increasing,especially during the morning and evening peak hours on weekdays,the carrying capacity of the station has been greatly challenged,which seriously affects the passenger order.In order to ensure that passengers can ride smoothly during peak hours and reduce the safety hazards caused by the large passenger flow at the station,it is necessary to effectively organize the passenger flow at the station.Although the efficient and reliable passenger flow organization scheme can effectively alleviate the congestion of passengers in the station,the effect of the passenger flow organization plan and how to evaluate the passenger flow organization plan play an important role in ensuring the rationality of the passenger flow organization and improving the passenger flow organization plan.Firstly,this paper summarizes and analyzes the research status of passenger flow simulation,passenger flow organization and passenger flow organization evaluation,and clarifies that the passenger flow line in the subway station is the main research object.Through the analysis of the problem of passenger flow organization of urban rail transit,the principles and influencing factors of passenger flow organization are clarified.Through the theoretical analysis of passenger flow organization evaluation,the principles and methods of passenger flow organization evaluation are clarified.Secondly,the passenger flow simulation model is determined by analyzing the passenger flow characteristics in the subway station,the passenger flow system of the subway station is analyzed,the boundary and flow causality of the system dynamics model are determined,and then the summary analysis of the passenger flow organization method is determined to determine the evaluation method of the streamline stock sensitivity,the AHP-CRITIC weight calculation method and the evaluation method of the material-element extensibility model.Finally,Taking Li jia cun Station of Xi’an University of Science and Technology as an example,a passenger flow simulation model is constructed to obtain the three important parameters of pedestrian average residence time,average speed and average density during the working hours of each key area in the station,and then a passenger flow model based on system dynamics is constructed according to the passenger flow simulation model,taking the above three indicators as an important basis for the flow between stocks,and further simulating and analyzing the passenger flow according to different streamlines,taking the sensitivity of the streamline stock as the evaluation index,and calculating the sensitivity of each streamline stock during the morning and evening peak hours.Combined with the combined weight calculated by AHP-CRITIC method,the sensitivity of each streamline line in the subway station is obtained by improving the material-element extensible model,and the passenger flow of the station is evaluated and analyzed,the corresponding suggestions for the improvement of passenger flow organization are given,and the passenger flow simulation and sensitivity index calculation are re-calculated,and finally the passenger flow effect of the entire station passenger flow under the condition of passenger flow organization is evaluated.