Evolution of Subway Network Systems, Subway Accessibility, and Change of Urban Landscape: A Longitudinal Approach to Seoul Metropolitan Area
Evolution of Subway Network Systems, Subway Accessibility, and Change of Urban Landscape: A Longitudinal Approach to Seoul Metropolitan Area
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DOI：
10.4018/ijagr.2015040104
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发表时间：
2015-04
期刊：
影响因子：
--
通讯作者：
Yena Song;Hyun Kim
中科院分区：
文献类型：
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作者：
Yena Song;Hyun Kim
地铁是韩国首尔主要的客运系统之一。在过去的30年里，地铁系统与城市土地使用相互作用。本研究旨在描述地铁系统的演化，并揭示地铁系统演化与地租、人口分布的因果关系。随着时间的推移，地铁网络的广泛和快速扩张增加了所有地区的地铁可达性，同时加强了中央商务区（CBD）的地位。这些事实间接地暗示了地租、人口和地铁可达性之间可能存在很强的关联。为了揭示这些关系，向量自回归形式的Granger因果关系检验。结果证实了因果关系的假设，地铁可达性的影响，在附近的CBD地区的土地租金。然而，这两个变量之间也存在反向因果关系，这意味着一个更复杂的关系。与此相反，人口变量与地铁可达性的空间背景下，在首尔地铁系统的一个非常弱的因果关系。
The subway is one of the major passenger transport systems in Seoul, Korea. Over the last 30 years, the subway system has interacted with urban land use. This study aims to describe the subway system evolution and reveal the causal relations with land rent and population distributions in conjunction with the evolution of the subway system. Extensive and rapid expansion of subway networks have increased subway accessibility in all regional areas over time and have simultaneously strengthened the status of Central Business Districts (CBDs). These facts indirectly imply a possible strong association amongst land rent, population, and subway accessibility. To reveal these relationships, the Granger-causality test in vector auto-regression form is employed. The results confirm the hypothesis of a causal relationship, the influence of the subway accessibility to the land rent in nearby CBD areas. However, inverse causality also exists between these two variables, implying a more complex relationship. In contrast, population variables have a comparably weak causal relationship with subway accessibility in the spatial context of the subway system in Seoul.