Urban Clustering in Java Island of Indonesia : Insights from Percolation Theory
This study employs a percolation-based approach using road network data to analyze the impact of road network expansion on urban clustering across Java Island, Indonesia, from 2009 to 2023. The findings reveal that road network expansion has significantly altered urban cluster patterns in major citi...
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| Published in: | Journal of Korea Planning Association Vol. 60; no. 2; pp. 74 - 90 |
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| Main Authors: | , |
| Format: | Journal Article |
| Language: | English |
| Published: |
대한국토·도시계획학회
30.04.2025
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| Subjects: | |
| ISSN: | 1226-7147, 2383-9171 |
| Online Access: | Get full text |
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| Summary: | This study employs a percolation-based approach using road network data to analyze the impact of road network expansion on urban clustering across Java Island, Indonesia, from 2009 to 2023. The findings reveal that road network expansion has significantly altered urban cluster patterns in major cities throughout Java. The model indicates that at a 1000-meter threshold, the formation of urban clusters becomes distinctly observable, aligning with both satellite-based delineation of urban areas and flow-based identification of urban regions. Moreover, the percolation analysis demonstrates that Jakarta has expanded considerably beyond its administrative boundaries, encompassing Karawang and Purwakarta. This highlights the limitations of traditional methods that rely solely on administrative boundaries, which may underestimate the actual extent of urban clusters and impede effective regional planning and growth management. The analysis also suggests the potential for forecasting future urban expansion, which could lead to the merging of adjacent metropolitan areas. The integration of Jakarta-Bandung with more distant regions could give rise to a larger urban cluster, positioning Jakarta and its surroundings as the largest mega-urban area on Java Island. The merging of other metropolitan areas is also apparent in the case of Surabaya-Malang, where future urban expansion is likely to exceed current administrative boundaries. These findings highlight the need for integrated spatial policies that anticipate the effects of road network expansion on urban sprawl and facilitate effective growth management across administrative boundaries. KCI Citation Count: 0 |
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| ISSN: | 1226-7147 2383-9171 |
| DOI: | 10.17208/jkpa.2025.04.60.2.74 |