Recearch On Simulation Evaluation Of Passenger Flow Control In Rail Transit Line Stations

Urban rail transit(subway,light rail,etc.)has the characteristics of punctuality and reliability,and has become the first choice for most people to commute.It faces great pressure during the morning and evening peak hours.Phenomena such as train overload and platform congestion have become normal,and under the current situation of normalized epidemic prevention and control,rail transit stations and trains as crowded places are facing unprecedented pressure.In recent years,in order to cope with the pressure of passenger flow during peak hours,rail transit stations have usually adopted the method of limiting the flow outside the station to alleviate the problem of overcrowding.However,whether it is the current limiting plan formulated by the operation manager based on experience,or the result calculated by the theoretical model Lack of effective evaluation before implementation.Based on the analysis of passenger flow characteristics,station facilities and equipment,and the implementation of current limiting schemes,this paper uses a combination of discrete event simulation and agent-based simulation.Based on the Any Logic simulation software platform,a simulation model for evaluating the current limit schemes of line stations is constructed.The main research contents are as follows:(1)The preparation method and implementation process of the current-limiting program are analyzed,the evaluation indexes and calculation methods of the current-limiting program are determined,and the logic model for the implementation of the current-limiting program in rail transit lines is established.(2)Based on the Anylogic software platform,the physical model of rail transit lines and stations is established;the method of combining discrete event simulation and agent-based simulation is used to construct the logical model of passengers entering and leaving the station and the logical model of train operation;according to the evaluation index of the current limiting scheme,Designed statistical variables and calculated output performance indicators.(3)Taking Dalian Metro Line 1 as an example,based on the actual passenger flow data and train operation data during peak hours of each station of the line,the unrestricted current scheme,the conventional station current limit scheme and the multi-station coordinated current limit scheme are carried out based on the actual passenger flow data and train operation data of each station on the line.The simulation evaluation was conducted,and the implementation effects of the two current limiting schemes were compared and analyzed.The research results show that the multi-station coordinated current limiting scheme is more reasonable,and the established simulation model can effectively evaluate and predict the actual operation effect of the current limiting scheme before the implementation of the current limiting scheme.