Spatial Organization Character and Planning Response of Xi'an Metropolitan Area from the Perspective of Network Embedding of Population Mobility
From the perspective of functional association,the appropriate spatial structure of the metropolitan area is an important support for the free flow and efficient configuration of elements.This paper uses mobile phone signaling data to measure cross-city population linkage,and based on the perspective of"embedding"of network association,the spatial organization characteristics of the current situation in the Xi'an Metropolitan Area are studied and judged by network analysis methods.The study finds that the spatial structure of the Xi'an Metropolitan Area is still in the evolutionary stage of core polarization to balanced development.The radiation driving capacity of secondary cities is limited,and the functional correlation characteristics between sub-regions are significantly differentiated.However,some small and medium-sized cities show the potential to enhance energy levels or cross-border linkage in network embedding.Combined with the character of spatial organization and its network embedding effect,it is suggested that in the future,the spatial planning of the Xi'an Metropolitan Area dynamically defines the governance scope with the actual functional correlation network.It should construct a network function system based on the network embedding characteristics of urban units;use the optimization of local cross-city associations as a clue to guide the networked spatial structure,which is embedded by city groups and intertwined by rings and belts;and exert the effect of embedded governance.This approach aims to achieve the efficient development of cities at all levels in the metropolitan area and the organic balance of the overall structure.
Xi'an Metropolitan Areaurban network correlationembeddednessspatial organizationinter-city population movement