Study On Model Optimization Of High-speed Railway And Urban Rail Transit System

The transfer efficiency between high-speed railway and urban rail transit will greatly affect the efficiency of the integrated transport system.How to achieve seamless transfer between them has become a core issue,and there is a great similarity between high-speed railway and urban rail transit in connection and transfer organization.Therefore,the system convergence of the two modes of transportation should not only consider whether the transport capacity matches the time convergence from a macro perspective,but also consider the characteristics of passenger flow and the related characteristics of transfer facilities between the two modes from a micro perspective.On the basis of summarizing the research results at home and abroad,this paper first introduces the basic theory of transfer between high-speed railway and urban rail transit,and on this basis,focuses on the key considerations of passenger flow transfer,constructs a Logit model to predict the transfer passenger flow sharing rate,which provides support for the subsequent study of transfer and transfer convergence.Through the research on the matching degree and time effectiveness of transportation capacity,the matching degree model and time reliability model of transportation capacity are obtained.On the premise of meeting the various indicators,the optimization scheme of the vehicle plan is put forward.Taking the Beijing South Railway Station as the research object,this paper analyzed the related characteristics of the transfer passenger flow and the passing capacity of the transfer facilities of the Beijing South Railway Station.Finally,the passenger flow sharing rate of Beijing South Railway Station is forecasted.Based on the results,the capacity matching degree is calculated under different departure intervals and different marshalling numbers.The influence between the full-load rate of trains and the capacity matching degree is studied,and the coordination between the high-speed railway and the urban rail transit transport capacity is analyzed.The VISSIM pedestrian simulation of the transfer process of Beijing South Railway Station to urban rail transit is carried out,and the parameters of the transfer facilities are analyzed based on the passenger flow characteristics.The passing capacity of the automatic ticket checker and the security checker is mainly studied,and the corresponding optimization scheme is given.Finally,the research results and the related issues that need to be further studied are summarized,which provides a certain reference value for the future research on the design and placement of transfer facilities between high-speed railway and urban rail transit,as well as the transfer and connection between the two modes of transportation.