Spatiotemporal Characteristics and Resilience of Urban Network Structure during the Spring Festival Travel Rush: A Case Study of Urban Agglomeration in the Middle Reaches of Yangtze River in China

Figure 3

Population flow networks of the middle reaches of Yangtze river: (a) 2019; (b) 2020; and (c) 2021. The color of the route represents the intensity of population flow, and the change from gray to red represents an increase in the intensity. The color of the polygon represents city cluster.

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(b)

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