标题：Quantitative Analysis of the Urban Factors Limiting Central District Plane Form Expansion: Twenty-one Case Studies of Asian Megacities′ Central Districts
期刊名称：Journal of Asian Architecture and Building Engineering
印刷版ISSN：1346-7581
电子版ISSN：1347-2852
出版年度：2018
卷号：17
期号：2
页码：345-351
DOI：10.3130/jaabe.17.345
语种：English
出版社：日本建築学会、大韓建築学会、中国建築学会
摘要：Based on threshold analysis theory, spatial limiting factors such as mountains, rivers, and roads not only affect the way in which cities spread out, but also play a vital role in shaping the flattened forms of their central districts. This study, based on field investigations of 21 central districts in 13 Asian megacities, seeks out limiting factors that determine the boundaries of urban central districts by quantifying the spatial boundary and distance of the limiting factors. The results suggest a strong correlation between the spatial limiting factors and the urban central district′s form. The limiting elements constrain the size of buildings and population density based on floor area ratio, building density, and development boundaries. Reduction in population and the inconvenience of traffic have decreased urban vitality, leading to delays in the extension of cites′ central districts. It is necessary to fully consider the role of the city′s internal limiting elements in order to reasonably plan the construction of an urban central district.
关键词：limiting elements;quantitative analysis;central district
