The Evolution of Spatial Structure of Beijing-Tianjin-Hebei Intercity Network:Based on Directed Modified Gravity Model and Social Network Analysis
The spatial structure of Beijing-Tianjin-Hebei intercity network in 2005,2010,2015 and 2019 is studied from the perspective of building an urban development quality indicator system that highlights urban centrality,using the shortest intercity commuting time to design a directional correction gravity model,and combining social network analysis(SNA)and GIS methods.The study found that Beijing,Tianjin and Shijiazhuang are the three major central cities in the cluster with high control.Tangshan and Langfang are important node cities;the intercity connection is becoming increasingly close,and the network space has been formed,showing significant core-periphery characteristics,forming important development axes such as Beijing-Tianjin,Beijing-Langfang,Beijing-Zhangjiakou,Tianjin-Cangzhou,Tianjin-Tangshan,and Shijiazhuang-Baoding,developing two subgroups of Beijing-Tianjin and Shijiazhuang both as the cores.The two metropolitan areas of Beijing and Tianjin tend to merge;Economic development,industrial structure,infrastructure construction and other factors will have a significant impact on intercity links,while labor wages have no significant effect on it.This leads to optimization suggestions such as cultivating nodes,creating development axes,improving synergistic mechanisms,adhering to ecological civilization orientation,and adapting to the development of the digital economy.
NETL
NSTL
万方数据
