Study On The Evolution Of The Transport Agency Services Space Organization Network In Yangtze River Delta

Since the new century,the geographical space has been greatly influenced by globalization,informatization and industrialization,caused by the continuous expansion of city size and the continuous evolution of city functions in the regional space,make spatial organization network become an important trend of the regional geographical space development.This article takes the two provinces and one city of the Yangtze River Delta as a case,based on enterprise organization data of the transport agency services organization,by constructing " the model of enterprise interlocking matrix" to describe the evolution pattern of the spatial organization network of transportation service industry in the Yangtze River Delta region.This paper consists of two parts: theoretical induction and empirical analysis.In the theoretical part,by summarizing the existing research results,We can understand and grasp the relevant concepts and types of transportation agency services and spatial organization networks,and the research status of spatial organization networks from relevant perspectives.In the part of empirical analysis,From the aspect of the Yangtze River Delta region,the transportation agent service industry is divided into two parts: ship agency service industry and freight agency service industry.The mathematical model is used to study the characteristics and evolution process of its spatial organization network.On this basis,the integration of shipping agency service industry and freight agency service industry can generally judge the characteristics and evolution pattern of the spatial organization network of transportation agency service industry in the Yangtze River Delta region since 2010,then it analyzes the association effect of the urban network level in the spatial organization network.Study findings:(1)The spatial organization network of shipping agency service industry and freight forwarding industry in the Yangtze River Delta has significant characteristics and obvious sequence relationship,and the backbone area of the spatial organization network is spreading outward,and regional integration trends are strengthening.(2)The spatial organization network of transportation agency service industry has the characteristics of significant level.In the time dimension,its hierarchical characteristics of the spatial organization network has no change.In the space dimension,relatively high degree of correlation city in the spatial organization network are mainly located along the Yangtze River and along the “Nanjing-Shanghai-Hangzhou-Ningbo ",its spatial distribution pattern shows the traditional " Z " axis spatial structure.The superposition of the " T " axis space structure of China's territorial development strategy is composed of the cities along the Yangtze River and the coastal areas and the " Z " axis space structure of the traditional Yangtze River Delta area is composed of the cities along the“Nanjing-Shanghai-Hangzhou-Ningbo " has always been the backbone of the spatial organization network in the Yangtze River Delta region,Shanghai,Nanjing and Ningbo are among the core of the spatial organization network.At the same time,the traditional central vertical hierarchy relations of the Yangtze River Delta region tends to weaken,and the horizontal linkage tends to strengthen.(3)The spatial organization network of the transport agent service industry in Yangtze River Delta region is mainly affected by the factors such as the city level,the traffic network structure,the level of economic development and the degree of external contact.Among them,the regional traffic network structure is the foundation of space organization network;city external contact degree is the development of space organization network promoting factors;economic development level differences between the city,each city is the spatial organization of the nodes in the network is not balanced the fundamental reason of the distribution;the city's administrative level and scale level also affect the spatial organization of network evolution the important factors.