陆路交通可达性与区域经济空间耦合协调关系分析--以武汉都市圈为例

Analysis of the Coupling and Coordination Relationship between Land Transport Accessibility and Economic Development:A Case Study of Wuhan Metropolitan Area

针对武汉都市圈研究其区域陆路交通可达性与经济发展的空间非均衡性,以辅助区域交通和经济发展的良性互动。本研究借助多源异构数据,运用加权平均旅行时间法和熵值法综合测度陆路交通可达性与经济发展水平,引入耦合协调度模型,系统分析陆路交通可达性与区域经济之间的空间耦合关系,并用ArcGIS实现不同区域特征类型差异的可视化表达。研究结果表明:武汉都市圈陆路交通可达性差异较大,极化效应影响下形成以武汉为核心的“中心—外围”空间格局;各城市交通可达性与经济发展的耦合关系整体协调度偏低,约54.4%的城市耦合协调度低于平均水平,受地理分异、空间分割等因素影响区域不均衡现象较显著。

In order to assist the benign interaction between regional transportation and economic development,the spatial imbalance between regional land transportation accessibility and economic development was studied in Wuhan metropolitan area.With the help of multi-source heterogeneous data,this study uses the weighted average travel time method and the entropy value method to comprehensively measure the accessibility of land transportation and the level of economic development,introduces the coupling coordination degree model,systematically analyzes the spatial coupling relationship between land transportation accessibility and regional economy,and uses ArcGIS to realize the visual expression of the differences of different regional feature types.The results show that the accessibility of land transportation in Wuhan metropolitan area is quite different,and the“center-periphery”spatial pattern with Wuhan as the core is formed under the influence of polarization effect.The coupling degree of transportation accessibility and economic development in each city is low,and about 54.4%of cities have a coupling coordination degree lower than the average level,and the regional imbalance is more significant due to geographical differentiation and spatial segmentation.