This paper examines the spatial pattern of the population flow network in China and its implications for containing epidemic spread, using Baidu migration data before and during the Chinese Spring Festival. The analysis reveals a hierarchical and spatially subnetworked structure of national population movement, concentrated mainly east of the Hu Huanyong Line. While eastern regions showed high migration, movement tended to concentrate in provincial capitals. Migration flow from Wuhan was significantly correlated with confirmed COVID-19 cases in other cities, highlighting the network's role in early-stage epidemic spread. Provincial and municipal lockdowns are suggested as effective containment measures.
Publisher
Humanities & Social Sciences Communications
Published On
Nov 09, 2020
Authors
Sheng Wei, Lei Wang
Tags
population flow
epidemic spread
COVID-19
Baidu migration data
spatial pattern
lockdown measures
China
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