From 2005 to 2022, the center of gravity of air passenger traffic shows a clear trend of shifting from the northwest to the southwest, indicating that the southwest region is becoming increasingly important in China's air passenger traffic.
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Analysis of the temporal and spatial evolution of China's air passenger transportation and the impact of policies on passenger flows.
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The sentences
The concentration of passenger throughput showed a trend of first concentrating, then dispersing.
The results indicate that the overall distribution of air passenger traffic in China exhibits a northeast-southwest spatial axis, with an increasing trend over time.