Curtin University Homepage
  • Library
  • Help
    • Admin

    espace - Curtin’s institutional repository

    JavaScript is disabled for your browser. Some features of this site may not work without it.
    View Item 
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item

    Exploratory growth analysis of a megacity through different spatial metrics: a case study on Dhaka, Bangladesh (1960-2005)

    Access Status
    Fulltext not available
    Authors
    Ahmed, Sohel
    Bramley, Glen
    Dewan, Ashraf
    Date
    2012
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Ahmed, Sohel J. and Bramley, Glen and Dewan, Ashraf M. 2012. Exploratory growth analysis of a megacity through different spatial metrics: a case study on Dhaka, Bangladesh (1960-2005). URISA Journal. 24 (1): pp. 9-24.
    Source Title
    URISA Journal
    Additional URLs
    http://www.questia.com/library/journal/1G1-293544542/exploratory-growth-analysis-of-a-megacity-through
    ISSN
    1045-8077
    URI
    http://hdl.handle.net/20.500.11937/16756
    Collection
    • Curtin Research Publications
    Abstract

    Recent advances and greater availability of geographic information systems (GIS) and remote-sensing (RS) technologies and data have opened wider possibilities for tackling many challenging issues of urban planning and management in developing countries, particularly in detecting, monitoring, analyzing, and modeling land-use and land-cover change (LUCC) patterns. Until recently, there has not been much evidence of use of GIS-RS tools in examining or monitoring rapidly expanding megacities such as Dhaka, the primary city of Bangladesh that had transformed 4,700 ha of agricultural and low-lying areas to urban areas during the period 1999-2005. The objective of this study was to explore and analyze the pattern of urban growth in the Dhaka megacity using remote sensing and spatial metrics. Multitemporal land-use/land-cover data have been acquired and used to determine urban growth in Dhaka. Using a number of spatial metrics, the study quantified spatial and temporal patterns of urban growth in Dhaka from 1960 to 2005.The study revealed that the total urban footprint increased rapidly to 20,551.0 ha (49.4 percent of the total land mass) in 2005 from 4,631.8 ha (11.1 percent) in 1961. The core hot spot of changes shifted from the central toward the north, south, east, and southeast directions in the 1990s and 2000s as exemplified initially by the trend surface, and later by the spatial metrics- detecting urban growth and its form in further details. Infill development was found to occur substantially even after sufficient consolidation already had taken place, which can be attributed primarily to the principal job and commercial hubs being located in the city core and, thus, shorter work-home trip lengths in Dhaka (also evident from the proximity and cohesion index). Analyses of patterns of urbanization can be linked to possible factors driving massive urban growth and, therefore, may be useful for making informed decisions for future sustainable urban planning and management of Dhaka megacity.

    Related items

    Showing items related by title, author, creator and subject.

    • Dynamics of land use/cover changes and the analysis of landscape fragmentation in Dhaka Metropolitan, Bangladesh
      Dewan, Ashraf; Yamaguchi, Y.; Rahman, Z. (2012)
      Rapid urban expansion due to large scale land use/cover change, particularly in developing countries becomes a matter of concern since urbanization drives environmental change at multiple scales. Dhaka, the capital of ...
    • Using remote sensing and GIS to detect and monitor land use and land cover change in Dhaka Metropolitan of Bangladesh during 1960-2005
      Dewan, Ashraf; Yamaguchi, Y. (2009)
      This paper illustrates the result of land use/cover change in Dhaka Metropolitan of Bangladesh using topographic maps and multi-temporal remotely sensed data from 1960 to 2005. The Maximum likelihood supervised classification ...
    • Urbanization and green space dynamics in Greater Dhaka, Bangladesh
      Byomkesh, Talukder; Nakagoshi, Nobukazo; Dewan, Ashraf (2012)
      Green space is particularly indispensable for proper functioning of the ecosystem in an urban environment. This study was an attempt to dynamically map and monitor green spaces in Greater Dhaka of Bangladesh. Both primary ...
    Advanced search

    Browse

    Communities & CollectionsIssue DateAuthorTitleSubjectDocument TypeThis CollectionIssue DateAuthorTitleSubjectDocument Type

    My Account

    Admin

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    Follow Curtin

    • 
    • 
    • 
    • 
    • 

    CRICOS Provider Code: 00301JABN: 99 143 842 569TEQSA: PRV12158

    Copyright | Disclaimer | Privacy statement | Accessibility

    Curtin would like to pay respect to the Aboriginal and Torres Strait Islander members of our community by acknowledging the traditional owners of the land on which the Perth campus is located, the Whadjuk people of the Nyungar Nation; and on our Kalgoorlie campus, the Wongutha people of the North-Eastern Goldfields.