The Measurement Of City Relationship And Analysis Of Network In Huaihai Economic Zone

The relation between cities is the basis of their existence,and the relationship and interaction between cities is the driving force of their development.There are many academic studies on urban relations,but many studies begin with the simple attribute data of the city itself,whose research method highlights the level and status of the city in the urban system rather than the relationship and interaction between the cities.In order to show the real existence of human flow,logistics,capital flow and information flow between cities,it is necessary to excavate the relational data between cities.Based on the above analysis,this master’s thesis is supported by the theory of "Flow Space" of Castells,uses the idea of "chain network model" of Taylor for reference,imitates the concrete method of mining relational data by globalization and world urban research group,and changes the research perspective into city network form traditional city grade,with the purpose to understand the development level and evolution mechanism of city network in Huaihai Economic Zone,and puts forward some targeted policy suggestions.This thesis probes into the network development state of each city from its urban industry function differentiation,by mining the huaihai economic zone of the scale and ranks information of the nine kinds of main producer services in 20 prefecture-level cities Then it is used the social network analysis method to calculate the related indexes of the network connection degree of Huaihai economic zone,and is analyzed the network structure characteristics.Finally,this thesis compares and quantifies modeling analysis of relational data and attribute data of huaihai economic zone by referring to the urban bit sequence-scale distribution model.And the research shows that:(1)the Huaihai Economic Zone has obvious network characteristics,with Xuzhou and Linyi as the core,with the overall distribution of "East is high,and west,is low" network pattern;2)Different producer services have different contribution to the urban network of huaihai economic zone.;3)The huaihai economic zone based on economic aggregatepresents a different system state because of network connectivity..According to these conclusions,It is known that the results of using relational data can be more scientific and reasonable than the simple and easily calculated attribute data.According to the development of different levels of cities in Huaihai Economic Zone,the corresponding policy recommendations are put forward:For the network centers-Xuzhou and Linyi,it need strengthen the ability of diffusion and radiation,and build regional central cities;For the key points of the network Lianyungang,Yancheng,Huaian,Jining,Rizhao,Suqian,Tai’an,Shangqiu City,Heze,Zaozhuang and Fuyang,it is necessary to realize sustainable development and make up for the short board of the industry.For the network weakness-Kaifeng,Bengbu,Zhoukou,Laiwu,Suzhou,Huaibei and Bozhou City,it is necessary to fully tap their own advantages to stimulate the vitality of the network.