本文以长江经济带为研究区，基于节点-场所模型理论，认为每种交通方式的交

In this paper, the Yangtze River Economic Belt as the study area, based on the node - The site model theory that the traffic function of each transport mode has a bias, namely: bias node function or a function venue. On this basis, build a sound index system of the Yangtze River Economic Belt integrated transport function from degree of completeness transportation, traffic levels and the size of three functions, focusing on transportation network node functions built on the model of accessibility and connection node based on the intensity of urban space place functional model. The use of space syntax, Gravity Model and GIS spatial analysis, in many ways, multi-angle comprehensive traffic analysis and evaluation of functional Yangtze River economic belt: on the one hand, from transportation types and criteria for the classification, grasp the current maturity of the transportation and transportation hub scale level, and were spatial expression; on the other hand, combined with DepthMap ArcGIS software and software computing space transportation network access node and link the city's strength, both of which are characterized by different types of venues node function of different types of transport networks and transport hub function, comparative analysis of variance and agglomeration different traffic ways and transportation functions of the spatial distribution and similar space. Weighted superposition of the above results, the comprehensive improvement of traffic function Yangtze River Economic Belt evaluated.

Based on the node-site model theory, this paper holds that the traffic function of each mode of transportation is biased, that is, the function of the node or the location is biased. On this basis, from the aspects of transportation completeness, scale and transportation function, we build the comprehensive traffic function perfection index system of the Yangtze River Economic Belt, and focus on building the node function model based on the accessibility of the transportation network and the site function model based on the contact strength of the node city space. Using spatial syntax, gravity model and GIS spatial analysis, we can comprehensively analyze and evaluate the functional perfection of the Yangtze River Economic Belt from many aspects and perspectives: on the one hand, from the perspective of the type of transportation and the classification criteria, grasp the current degree of transportation completeness and the scale of transportation hub, and carry out spatial expression, on the other hand, Combined with DepthMap software and ArcGIS software to calculate the accessibility of transportation networks and the spatial contact intensity of node cities, they represent the node functions of different types of transportation networks and the location functions of different types of transportation hubs. And from the spatial distribution and spatial aggregation comparison to analyze the different and similarity of traffic functions under different modes of transportation. Through the weighted overlay of the above results, the improvement of the comprehensive traffic function of the Yangtze River Economic Belt is evaluated.

This paper takes the Yangtze River economic belt as the research area, and based on the node place model theory, considers that the traffic function of each mode has a bias, that is, biased node function or place function. On this basis, the comprehensive traffic function improvement index system of the Yangtze River economic belt is constructed from three aspects of traffic and transportation completeness, scale level and traffic function, focusing on the construction of node function model based on traffic network accessibility and site function model based on spatial connection strength of node cities. By using spatial syntax, gravity model and GIS spatial analysis method, this paper comprehensively analyzes and evaluates the traffic function perfection of the Yangtze River economic belt from many aspects and perspectives: on the one hand, from the perspective of traffic types and classification standards, grasp the current traffic completeness and traffic hub scale, and respectively express them in space; on the other hand, it combines Depthmap software and ArcGIS software to calculate The traffic network accessibility and the spatial connection strength of node cities represent the node functions of different types of traffic networks and the location functions of different types of traffic hubs respectively, and analyze the differences and similarities of traffic functions under different traffic modes from the perspective of spatial distribution and spatial agglomeration. Through the weighted superposition of the above results, the comprehensive traffic function of the Yangtze River economic belt is evaluated.