Research On The Layout Of Traffic Facilities In High-Speed Railway Passenger Transport Hub

With the gradual improvement of the railway system,high-speed railways are gradually favored by short-and medium-distance travelers because of their unique characteristics.More and more passengers choose high-speed trains to travel,and the number of them continues to increase.At the same time,due to the improvement of the living standard,travelers will be more and more demanding to transfer service quality and distribution capacity of railway passenger transport hubs.It is found that during the planning and construction of the traditional integrated passenger transport hub,the layout of the hub station facilities was not properly handled.Therefore,in some early-built passenger terminal stations,the flow of passengers was turbulent,and problems such as the difficulty of collecting and transferring occurred frequently.This problem is even more pronounced in the square in front of the station.In recent years,the pace of construction of high speed rail in China has been accelerated.The new high speed rail hub is more inclined to use the "upward and downward" three-dimensional layout model,which reduces the dependence on the station square,but increases the difficulty of streamline organization at the same time.Qionglai high-speed railway passenger transport hub is located between the old and new urban districts of Qionglai.After completion,it will serve as the main transportation hub of Qionglai and undertake the important task of connecting the urban and external traffic.In order to make the high-speed railway passenger transport hub of qionglai to connect the city traffic reasonably and provide efficient service for passengers,this paper will study the layout of passenger and railway hub station facilities based on passenger streamlines in order to obtain a layout scheme that is as convenient as possible for passengers to transfer.The paper first introduces the definition,composition,characteristics and functions of high-speed railway passenger transport hubs.In addition,the paper analyzes the passenger flow characteristics of high-speed passenger transport hub,and puts forward a method of forecasting transfer passenger flow based on Logit model.Secondly,the paper studies the related theory of streamline organization and facility layout,and briefly describes the definition and classification of hub station streamline,and summarizes the description methods of four kinds of streamlines.At the same time,the paper classifies the transportation facilities of the hub station,and focuses on the study of the station facilities of each transportation mode,and analyzes the connection mode between the hub station's various transportation modes and the high-speed rail,and the passenger transfer flow line under this mode.Then analyzes the streamline and discusses how to calculate the scale of field facilities at each station.Based on the analysis of the relevant factors affecting the layout of the hub,a two-objective layout model with the shortest distance between passengers and the least interference degree of passengers is established,and use the NSGA-II algorithm to solve the model.Finally,the research results are applied to the Qionglai High-speed Railway Passenger Terminal which is in the planning and construction stage,which proves the feasibility of the model and solves the practical problems at the same time.The paper discusses the layout model selected of minimum passenger flow line interference,and analyzes the passenger transfer streamline in the hub with the architectural design scheme.