Research On Traffic Evaluation Method Of Large-Scale Railway Integrated Passenger Transport Hub

As an important part of the comprehensive transportation system,the large-scale railway integrated passenger transport hub is the main link to achieve efficient connection and integrated transfer between various modes of transportation and urban transportation.It is the key to passenger transport efficiency and service quality.Accurate assessment of the rationality of the planning,site selection,design,and operation management of a large-scale railway integrated passenger transport hub has very important theoretical significance and practical value in giving full play to the hub's internal and external transportation as well as the transformation of the city's internal transportation,shaping a good urban public space,optimizing the urban transportation structure and driving the development of the surrounding area and even the entire city.The thesis first establishes a traffic evaluation system for a large-scale railway integrated passenger transport hub.It defines the concept of a large-scale railway integrated passenger transport hub and analyzes the functional attributes,architectural space characteristics,and operational passenger flow characteristics of a large-scale railway passenger transport hub.Aiming at the stages of planning,site selection,scheme design,and operation management of the railway integrated passenger transport hub,the thesis sorts out the work framework of traffic assessment at each stage.Through the analysis of urban accessibility,economic development and urban spatial structure,and the impact of high-speed railway on urban development is studied.Based on the "node-place" model,from the perspective of "urban catalyst",the thesis analyzes the interactive relationship between the railway integrated passenger transport hub and the city.From three levels of railway planning,urban development and traffic carrying capacity,the factors affecting the site selection of a large-scale railway integrated passenger transport hub are analyzed;thus an evaluation index system for the site selection stage is constructed;The rationality of the site selection of a large-scale railway integrated passenger transport hub is evaluated based on the DAGF method.The research analyzes the principles,types and strategies of the overall layout of the large-scale railway integrated passenger transport hub;from the perspective of architectural space relevance,it studies the combination requirements of the functional spatial layout of the large-scale railway integrated passenger transport hub and the influencing factors of the connection importance.And it analyzes the transfer flow lines between the transportation modes of the railway integrated passenger transport hub to generate an initial transfer flow line network with an improved shortest path allocation algorithm and perform generalized impedance calculations,applying Any Logic simulation software to analyze traffic conflicts.Based on the space syntax theory,the thesis calculates the convex space,line of sight,axis,line segment analysis and related variable parameters of the basic transfer streamline network and optimizes the transfer streamline network with Depth Map X software.Based on the internal spatial layout and transfer flow lines of the railway integrated passenger transport hub,an evaluation index system is constructed;Taking Wuxi Station as an example,the thesis empirically analyzes the connection level of the internal spatial layout and transfer flow lines of the hub based on the extension model.The layout of passenger service facilities and the capacity configuration of the connecting facilities of the large-scale railway integrated passenger transport hub are optimized respectively,and the problems in the organization of the passenger flow are analyzed.The thesis establishes a decision point selection model for the passenger flow on the basis of streamline analysis and solves it by particle swarm algorithm to determine the number and location of decision points.At the same time the simulation evaluation of the organization of commuting passenger flow is conducted.The research clarifies the problems of the external transportation organization of the hub and conduct the design and simulation evaluation of the external transportation organization of the hub.Aiming at the service level of a large-scale railway integrated passenger terminal,an evaluation index system and grading standards have been established;and a cloud model-based service level evaluation method of a large-scale railway integrated passenger terminal has been established.Taking Wuxi Station as an example,the overall service level of Wuxi Station is empirically analyzed.The thesis defines the connotation of the transportation evaluation promotion mechanism of the railway integrated passenger transport hub,and it analyzes the interaction mechanism between the transportation evaluation and the promotion mechanism.From the three dimensions of evaluation system,evaluation implementation and guarantee mechanism,the framework of the transportation evaluation promotion mechanism for railway integrated passenger transport hubs is established,and the main content and specific requirements of the components of the promotion mechanism are analyzed.