• Title/Summary/Keyword: Centdian

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Analysis of Locational Change of the Community Service Centers and Optimal Location Modeling after Dong Merger and Abolition: Spatial Efficiency and Equity Approach (동통폐합에 따른 동주민센터의 입지 변화 분석과 최적 입지 모델링 -공간적 효율성 및 형평성 접근-)

  • Lee, Gun-Hak
    • Journal of the Korean Geographical Society
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    • v.45 no.4
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    • pp.521-539
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    • 2010
  • Recently many local governments have carried out dong merger and abolition process to cope with rapidly changing administrative demand and environment. This administrative effort impacts substantially the locational characteristics of the existing dong offices which directly involve in the quality of local community life. In this paper, we attempt to analyze the location pattern of current dong community service centers (formerly, 'dong office') and suggest the optimal locations maximizing spatial accessibility. As an application, we examine the location pattern of the existing dong community service centers in Mapo-gu, Seoul. Moreover, we compare current spatial configurations with the optimally selected locations such as, a Median maximizing spatial efficiency, a Center maximizing spatial equity, and a Centdian exploring compromising solutions regarding the tradeoff between efficiency and equity. The analytical results present that each of dong community service centers was systematically evaluated in terms of spatial efficiency and equity and in general the community service center locations are not spatially optimized with respect to efficiency and equity, compared with the optimal locations.

Method of Determining Future Facility Location with Maintaining Present Accessibility

  • Takahagi, Wataru;Sumitani, Yasushi;Takahashi, Hirotaka;Omae, Yuto;Sakai, Kazuki
    • Industrial Engineering and Management Systems
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    • v.15 no.3
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    • pp.197-205
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    • 2016
  • The public services closely related to the daily lives of the Japanese people, such as firefighting, police or primary school education, are largely financed by the local governments. As the population as a whole in Japan declines, the population in local regions are forecasted to experience particularly rapid decline in the future, and it is inevitable to reduce the cost of public services provided by the local governments to keep their financial basis sustainable. In order to provide public services to the people properly and fairly, the local governments own and utilize their public facilities, such as fire stations, police stations or primary schools. On the other hand, we have to secure the accessibility, which is the condition of accessing a facility easily in a whole local city including the high population density area and low population density area. In this paper, we propose a method of determining the number of future facilities and its facility locations in which we maintain the present accessibility. In our proposed method, we determine them comparing the accessibility measurement calculated by facility location model using the present and future population. We adopted k-centdian model as the facility location model, which can secure the accessibility in a whole local city determining the weights of both areas. We applied our proposed method to fire station in Iwaki city, Japan. The results suggested that 7 facilities would be reduced in 2064, after 50 years from 2014. Additionally, we confirmed that the future facility location had secured accessibility in both high and low population density area.