Research On Large Passenger Flow Control Model And Algorithm Of High Speed Railway Transfer To Subway

With the rapid development of high-speed railway and metro,the network of high-speed railway and Metro has been continuously improved,and a large number of high-speed railway hub stations have emerged,such as Beijing West Railway Station,Chengdu east railway station,etc.The high-speed railway hub station is the transfer node of high-speed railway and subway.The key points to measure the success of planning and design of high-speed railway hub station are the organization of transfer streamline,transfer system evaluation,transfer facilities and equipment configuration.High-speed rail and subway are the main modes of transportation connecting the internal and external passengers,so high-speed railway transfer to subway is the focus of this paper.In the process of high-speed railway transfer to the subway,more and more passengers gather in the station,especially in the peak period such as holidays,which is prone to large passenger flow,and there is a great potential safety hazard.Therefore,the organization and control of high-speed railway transfer to the subway large passenger flow is particularly important and of practical significance.First of all,the general situation and functions of high-speed railway passenger transport hub are studied,then the basic principles of transfer system composition,transfer system objectives and principles are studied,and the transfer passenger composition and transfer flow line including station transfer facilities,transfer passengers and transport vehicles are studied,in addition,several flow line setting requirements are put forward.The high-speed railway transfer facilities and equipment are mainly divided into: waiting type(platform,station hall),service type(fare collection,security inspection equipment),connection type(passage,escalator or elevator,stair)equipment,focusing on the high-speed railway transfer facilities and the characteristics of transfer facilities.On the basis of the above research,the paper analyzes the transfer mode of high-speed railway and subway connection at the same time,taking Beijing West Railway Station as an example,the paper studies the situation of passengers carrying luggage.Secondly,the paper introduces the logit model,which is used to predict the sharing rate of high-speed railway passenger flow.The collected data of Beijing West Railway Station is substituted into the model,and the generalized cost function of each transportation mode of high-speed railway transfer city is obtained,the characteristics of generalized cost function mainly include economy,rapidity,convenience,comfort and safety.Then the sharing rate of different modes of high-speed railway transfer in Beijing West Railway Station is obtained.This paper mainly analyzes the transfer facilities(waiting,connecting and service)in the process of high-speed railway transfer to the subway.Considering the situation of carrying large luggage in the transfer process,the paper calculates the capacity of the three types of facilities(connection,service and waiting),and brings the collected data into the formula to get the capacity of transfer facilities and subway transportation capacity of Beijing West passenger station Secondly,the control model of high-speed railway transit passenger flow is constructed.On the premise of ensuring the safety of passengers,the control model of large passenger flow is established with the goal of the maximum passenger flow in the subway station and the constraints of the service capacity(waiting,connecting and service),the safety density of platform and the transportation condition of the train in the subway transfer station infrastructure,and the function in MATLAB is used to solve the problem.Through field investigation and data collection,the collected data will be brought into the formula in Chapter 3 to obtain the transfer facilities(security check,automatic check-in machine,etc.),platform safety density of high-speed railway and the transport capacity of metro trains of line 7 and line 9 of Beijing West Railway Station,and the results will be substituted into the large passenger flow control model to establish the large passenger flow control model of Beijing West Railway Station.MATLAB is used to find out the maximum number of people entering the station in a unit time at each entrance.In order to verify the rationality and effectiveness of the model,the simulation is carried out by VISSIM to compare the queuing length of transfer facilities before and after using the large passenger flow control model in Beijing West Railway Station,and the rationality and effectiveness of the model is verified.