Research On Spatial Structure Of Urban Network In Zhejiang Province Based On Multivariate Stream Data

The interaction of “factor flow” between cities has brought great vitality and potential to the comprehensive development of the region,and the regional spatial structure has also developed into a network.In addition,with the improvement of current transportation and communication facilities and the popularity of the Internet,globalization,informatization and networking are expanding,and the flow of manpower,capital,information and technology between cities is accelerating,which intensifies the reconstruction of relationship of cities-regions.At present,the urban space system of Zhejiang Province is being in the transition period from hierarchical structure to network structure.In order to better cope with the transformation of spatial structure,Zhejiang Province has proposed a series of spatial strategies and measures in optimizing the spatial layout of urbanization.Based on the above situation,the author takes all the central cities in Zhejiang Province and the county-level cities(towns)as the research samples,and analyzes the characteristics and changes of the spatial structure of the urban towns in Zhejiang Province during the transition period,so as to make those references of rational layout of provincial urban spatial structure and guide the healthy development of urbanization.In this paper,nuclear density analysis,chain-locking model,social network analysis and correlation analysis are used to analyze the spatial network structure of urbanization in Zhejiang Province,including railway passenger flow,capital flow and tourism flow,and the impact on different flows.The spatial structure is compared and analyzed for the relevant impact mechanisms.Finally,the reconstruction strategy of urban network structure in Zhejiang Province is proposed.It’s found in study that :(1)Zhejiang Province still shows a strong polarization From the perspective of factor aggregation.(2)The network spatial structure of provincial towns under three kinds of flow perspectives shows some similarities and differences.The similarity lies in the strong polarization situation,network development trend to some extend and The development between city groups is not balanced.The difference is that different urban linkage groups are formed from different flow perspectives.From the comprehensive analysis of the three flows of “traffic flow”,“fund flow” and “travel flow”,there are three problems in the regional urban network system in Zhejiang Province: imbalance in regional development,weakening of the development engine of the eastern coastal and central metropolitan areas and the lack of considerable development opportunities in southern Zhejiang and western Zhejiang.(3)From the analysis of capital flow and tourism flow,the dynamic mechanism of cyberspace structure under the influence of different flows is different.(4)In view of the current problems and the background of Grand Bay,Grand Garden and Grand Corridor in Zhejiang Province,this paper further proposes the spatial pattern of “two districts,multi-axis and multi-points” to optimize the construction of urban system in Zhejiang Province.