Analysis of the centrality and symmetry of the network structure of China's three urban agglomerations using Baidu population migration

doi:10.13474/j.cnki.11-2246.2022.0241

Abstract

Abstract: Focusing on the analysis of the centrality and symmetry patterns of the nodes and links on urban network, this study proposes a method framework which includes three “S” dimensions.It is strength, symmetry, and structure, respectively. Further, the above framework is applied to the migration network of Beijing-Tianjin-Hebei (BTH), Yangtze River Delta (YRD), and Pearl River Delta (PRD) urban agglomerations, and the following findings can be obtained: ① The urban nodes and the migration of people in the three major urban agglomerations have obvious hierarchical and symmetrical structures, respectively. ② The BTH, YRD, and PRD respectively presents a core-periphery structure with a surrounding, “>” shape, and one core and two wings. ③ The BTH presents a typical single-center structure, while the YRD and the PRD present obvious multi-center structure. The above findings can be helped to make suggestions for the urban positioning and regional planning of the three urban agglomerations, which can promote the coordinated development and integration of those regions.

Key words: centrality, symmetry, urban network, three famous urban agglomerations, population migration

CLC Number:

P208

YUE Hanqiu, QI Jianwei, CHEN Yanhui, CHEN Liang, CHEN Huaixin. Analysis of the centrality and symmetry of the network structure of China's three urban agglomerations using Baidu population migration[J]. Bulletin of Surveying and Mapping, 2022, 0(8): 110-116.

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