An analysis on urban shrinkage trends of all Japanese cities by detecting relative densely inhabited districts – Changes in urban form of Japanese cities in an era of shrinking population, part 2
Abstract To analyze the method of urban shrinkage in Japan, a densely inhabited district (DID) has been applied in some previous studies as an index of urban areas or city centers. The problem with this method is that shrinkage in cities where no DID exists cannot be analyzed. Therefore, a relative...
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| Format: | Article |
| Language: | English |
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Wiley
2021-07-01
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| Series: | Japan Architectural Review |
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| Online Access: | https://doi.org/10.1002/2475-8876.12227 |
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doaj-365a56d085af4d9593aa7db257e72afa2021-06-21T18:26:56ZengWileyJapan Architectural Review2475-88762021-07-014348249410.1002/2475-8876.12227An analysis on urban shrinkage trends of all Japanese cities by detecting relative densely inhabited districts – Changes in urban form of Japanese cities in an era of shrinking population, part 2Akihiro Kawabe0Shun Watanabe1Master of Policy and Planning Sciences (Former Grad. Study, Graduate School of Systems and Information Engineering, University of Tsukuba) Urban Renaissance Agency Tokyo JapanFaculty of Engineering, Information and Systems University of Tsukuba Tsukuba‐shi Ibaraki JapanAbstract To analyze the method of urban shrinkage in Japan, a densely inhabited district (DID) has been applied in some previous studies as an index of urban areas or city centers. The problem with this method is that shrinkage in cities where no DID exists cannot be analyzed. Therefore, a relative threshold for urban areas or city centers is required. In this study, we propose a method for detecting a relative densely inhabited district (RDID) improved by information loss minimization. Furthermore, we identified the urban shrinkage or structural changes in Japanese cities using RDIDs and analyzed the changing trends from the years 1995–2015.https://doi.org/10.1002/2475-8876.12227entropyinformation loss minimizationrelative densely inhabited districtstages of urban developmentstandard grid cellurban structure |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
Akihiro Kawabe Shun Watanabe |
| spellingShingle |
Akihiro Kawabe Shun Watanabe An analysis on urban shrinkage trends of all Japanese cities by detecting relative densely inhabited districts – Changes in urban form of Japanese cities in an era of shrinking population, part 2 Japan Architectural Review entropy information loss minimization relative densely inhabited district stages of urban development standard grid cell urban structure |
| author_facet |
Akihiro Kawabe Shun Watanabe |
| author_sort |
Akihiro Kawabe |
| title |
An analysis on urban shrinkage trends of all Japanese cities by detecting relative densely inhabited districts – Changes in urban form of Japanese cities in an era of shrinking population, part 2 |
| title_short |
An analysis on urban shrinkage trends of all Japanese cities by detecting relative densely inhabited districts – Changes in urban form of Japanese cities in an era of shrinking population, part 2 |
| title_full |
An analysis on urban shrinkage trends of all Japanese cities by detecting relative densely inhabited districts – Changes in urban form of Japanese cities in an era of shrinking population, part 2 |
| title_fullStr |
An analysis on urban shrinkage trends of all Japanese cities by detecting relative densely inhabited districts – Changes in urban form of Japanese cities in an era of shrinking population, part 2 |
| title_full_unstemmed |
An analysis on urban shrinkage trends of all Japanese cities by detecting relative densely inhabited districts – Changes in urban form of Japanese cities in an era of shrinking population, part 2 |
| title_sort |
analysis on urban shrinkage trends of all japanese cities by detecting relative densely inhabited districts – changes in urban form of japanese cities in an era of shrinking population, part 2 |
| publisher |
Wiley |
| series |
Japan Architectural Review |
| issn |
2475-8876 |
| publishDate |
2021-07-01 |
| description |
Abstract To analyze the method of urban shrinkage in Japan, a densely inhabited district (DID) has been applied in some previous studies as an index of urban areas or city centers. The problem with this method is that shrinkage in cities where no DID exists cannot be analyzed. Therefore, a relative threshold for urban areas or city centers is required. In this study, we propose a method for detecting a relative densely inhabited district (RDID) improved by information loss minimization. Furthermore, we identified the urban shrinkage or structural changes in Japanese cities using RDIDs and analyzed the changing trends from the years 1995–2015. |
| topic |
entropy information loss minimization relative densely inhabited district stages of urban development standard grid cell urban structure |
| url |
https://doi.org/10.1002/2475-8876.12227 |
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