ABSTRACT

The purpose of this paper is to reappraise the issues and theories of the urban sprawl appeared during suburbanization process, and to measure the urban sprawl of the Seoul Metropolitan region(SMR) quantitatively with the spatial analysis methodology. In the SMR the urbanized areas were expanded with the enormous population growth since 1970s. During this urbanization process, the urban sprawl appeared clearly, which can be understood in terms of population and urbanized area, spatial geometry, landuse changes, relationship between the population and employment density, and land values. The population of the SMR increased greatly, with the expansion of the urbanized region. In the spatial geometry, the morphology of the expanded urbanized area was found as the irregular shape, not the prototypical shape, with the measurement of the urban sprawl using shape index, leapfrog index. Also, The urbanized area of the SMR was developed with the leapfrog shape. The landuse changes of the SMR were detected using Kappa coefficient, which is the method of the landuse change detection from 1975 to 2000. The great amount of the unurbanized land was converted to the urbanized land. Also, the residential sprawl was great in the past, but in recent years, the job sprawl is becoming remarkable in the SMR. Finally, the degree of the landuse in the SMR was analyzed with the land price analysis using GIS. With the result of the land price analysis, the land price was highest in the downtown, and Kang-nam region, while the land price of the suburban SMR region was relatively lower. Also, we found the directional biases of the land price distribution in the SMR. This empirical research enabled us to understand the urban sprawl of the SMR with the theoretical review and quantitative measurement analysis. It is important to understand the urban spatial structure related to the urban sprawl, and also is necessary to consider the related issues of the urban sprawl in the theoretical and empirical perspectives simultaneously.

KEYWORD

urban sprawl, urban spatial structure, the Seoul Metropolitan region, urban internal structure, urban sprawl measurement

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