Susceptibility analysis of landslide in Chittagong City Corporation Area, Bangladesh

  • Sourav Das Bachelor of Urban and Regional Planning (B.URP), Chittagong University of Engineering and Technology (CUET), Chittagong
  • Debasish Roy Raja Assistant Professor, Department of Urban and Regional Planning, Chittagong University of Engineering and Technology (CUET), Chittagong
Keywords: Analytical Hierarchy Process (AHP), CVAT tool, Geographic Information System (GIS), Landslide, Remote Sensing (RS) and Susceptibility

Abstract

In Chittagong city, landslide phenomena is the most burning issue which causes great problems to the life and properties and it is increasing day by day and becoming one of the main problems of city life. On 11 June 2007, a massive landslide happened in Chittagong City Corporation (CCC) area, a large number of foothill settlements and slums were demolished; more than 90 people died and huge resource destruction took place. It is therefore essential to analyze the landslide susceptibility for CCC area to prepare mitigation strategies as well as assessing the impacts of climate change. To assess community susceptibility of landslide hazard, a landslide susceptibility index map has been prepared using analytical hierarchy process (AHP) model based on geographic information system (GIS) and remote sensing (RS) and its susceptibility is analyzed through community vulnerability assessment tool (CVAT). The major findings of the research are 27% of total CCC area which is susceptible to landslide hazard and whereas 6.5 sq.km areas are found very highly susceptible. The landslide susceptible areas of CCC have also been analyzed in respect of physical, social, economic, environmental and critical facilities and it is found that the overall CCC area is highly susceptible to landslide hazard. So the findings of the research can be utilized to prioritize risk mitigation investments, measures to strengthen the emergency preparedness and response mechanisms for reducing the losses and damages due to future landslide events.

DOI: http://dx.doi.org/10.3126/ije.v4i2.12635

International Journal of Environment Vol.4(2) 2015: 157-181

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Abstract
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PDF
934
Published
2015-06-03
How to Cite
Das, S., & Raja, D. (2015). Susceptibility analysis of landslide in Chittagong City Corporation Area, Bangladesh. International Journal of Environment, 4(2), 157-181. https://doi.org/10.3126/ije.v4i2.12635
Section
Research Papers