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Published in:
2014 | OriginalPaper | Chapter
Area Based Landslide Hazard and Risk Assessment for Penang Island Malaysia
Authors : Shabri Shaharom, Low Tian Huat, Mohd Asbi Othman
Published in: Landslide Science for a Safer Geoenvironment
Publisher: Springer International Publishing
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Abstract
The demand for infrastructure development and building construction has encouraged development over new areas of challenging terrain and encroachment into existing, otherwise stable, highland areas. In 2008, The Slope Engineering Branch (CKC) of The Public Works Department had initiated a Slope Hazard and Risk Assessment in Hulu Kelang Ampang Area. In 2010, CKC again has extended the slope hazard and risk assessment to other critical areas i.e., Penang Island which is in line with the long term plan in the National Slope Master Plan. Penang Island has a history of landslide damages following heavy rains. As many development and housing projects are taking place at the hilly terrain, the hill slopes are not exempted for building platforms and excavation in the hilly areas around Penang island is rapidly increasing, amidst regulatory concerns. This has resulted in incidences of geotechnical instability causing numerous landslips, some of which are fatal.
In view of formulating medium term and long term measures towards an effective policy of inspection and monitoring of development in Penang island, An area based landslide hazard assessment was proposed to initiate a slope hazard assessment and mapping for the proposed area. Geographical Information System (GIS) was adopted as the base machine for the production of the landslide hazard and risk map. This paper highlights the area based landslide hazard and risk assessment using GIS application. The landslide hazard and risk assessment methodology and map preparation using GIS application for the study are also highlighted.