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根据中心地理论及空间经济学的基本原理,首先通过引入冰山运输成本建立了一个以重庆、川南、川东北、成都平原四个城市圈为支撑点的空间菱形经济模型,然后分析了不同的运输成本对产业集聚的影响,最后将成渝经济区城际轨道交通网的空间布局与城市圈的空间菱形模型相结合,阐释了城际轨道交通网规划的合理性。结果表明,城际轨道交通网的空间布局可降低各城市圈之间的运输成本,从而促进经济区内专业化分工和产业集聚、加快成渝城市群一体化进程。
According to the basic theory of geocentric theory and the basic principle of space economics, a space diamond economic model based on four iceberg cities of Chongqing, South Sichuan, Northeast Sichuan and Chengdu Plain was established by introducing iceberg transport cost. Then, different transportation Finally, the space layout of inter-city rail transit network in Chengdu-Chongqing Economic Zone and the spatial diamond model of urban circle are combined to explain the rationality of inter-city rail transit network planning. The results show that the spatial layout of inter-city rail transit network can reduce the transportation costs between the metropolitan areas, thereby promoting specialized division of labor and industrial agglomeration in the economic zone and accelerating the integration of Chengdu-Chongqing urban agglomerations.