The Spatiotemporal Pattern and Trend Prediction of Coordinated Development of Transportation-Population-Economy-Environment:An Empirical Study Based on the Chengdu-Chongqing Economic Circle
Collaborative development is an inevitable choice,and revealing the coordinated development situation and spatiotemporal evolution pattern of the Chengdu-Chongqing region can provide a reference for its sustainable and high-quality development.Based on data from 16 cities in the Chengdu-Chongqing economic circle from 2010 to 2020,a comprehensive evaluation index system of four systems of transportation-population-economy-environment is constructed.The coupling coordination model is used to analyze the spatiotemporal pattern of coupled and coordinated development of transportation-population-economy-environment in the Chengdu-Chongqing economic circle,and the gray GM(1,1)model is used to predict its future development trend.The results show that:(1)The comprehensive evaluation level of transportation,population,economy,and environment subsystems in the Chengdu-Chongqing economic circle show a fluctuating upward trend;(2)The coupling coordination degree of the four systems shows a slow upward trend,and the overall development is towards benign coordination.In terms of spatial characteristics,the cities with well-developed coupling coordination degree of the four systems in the Chengdu-Chongqing region are mainly concentrated around the"dual core",but the spatial correlation of the four systems is not significant;(3)By predicting the degree of coupling coordination,it can be seen that the overall development of coupling coordination among cities in the Chengdu-Chongqing region from 2021 to 2025 will slowly improve,but it will take longer to achieve complementary and coordinated development among the four systems.
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