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Extension of urban sprawl in selected cities, 1975-2015
Source: European Commission, Joint Research Centre (JRC), “GHS Settlement grid following the REGIO model 2014 in application to GHSL Landsat and CIESIN GPW v4-multitemporal (1975-1990-2000-2015)”.
Comment
The extension of urban sprawl in the seven examples selected reveals very different relationships between the most densely populated urbanized area (vertical city) and its horizontal extensions (geographical) which commonly encroach on rural space (houses or shanty towns). Some structures are polynuclear, connected by densely populated axes (Pakistan, Vietnam), while others, especially the Hong Kong/Shenzhen/Guangzhou/Macao urban area, have very high densities within a perimeter of over 150 kilometers in diameter.
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