Slope Hazard Assessment in Urbanized Area
Low Tian Huat
Mohd Asbi & Associates, Malaysia.
Department of Civil Engineering, Faculty of Engineering, National Defense University of Malaysia.
A number of fatal landslides disasters have been reported in Ulu Klang starting with the tragedy of Highland Tower collapse in 1993, followed by several landslides adjacent to the Highland towers. These landslides have resulted in casualties and loss of lives, notwithstanding displacement of residents and extensive damage to properties. In view of formulating a medium term and long term measures towards an effective policy of inspection and monitoring of development in the Ulu Klang areas, Malaysia Public Works Department (JKR) Slope Engineering Branch have commissioned an area based landslide hazard assessment study at this landslide prone location. The proposed study covers an area of about 100km2 from Cheras to the North of Taman Melawati and the duration of the study is twelve months. Geographical Information System (GIS) is proposed to be used as the based machine for the production of landslide hazard map. LiDAR (Light detection and Ranging) survey was selected to produce the base map for the landslide hazard assessment. This paper highlights the landslide hazard assessment methodology and hazard map preparation using GIS application.
KEYWORDS: Landslide; slope hazard assessment; GIS; LiDAR; hazard map.
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