Applied GIS in Slope Failure: An Analysis

Ang Kean Hua

Slope failure becomes major issues and problems in dangerous human life and properties. This research study carried out to determine factors that affect the hill slope in contribute to slope failure using GIS approach. GIS techniques required several data for analysis, namely elevation data and contour maps, land used map data, original map data, and vegetation map data; which can be received from government department or agencies, height and topographic data maps, data from internet sources, and data from documentation includes publications. The selected area for this research study is Selangor State, which highlighted rapid development of land used for human activities. Accordingly, the first step will be entering all data into database, which involve with the physical and environment components; while the second step will be identification and preparation based on the data layers that required in the research study; and the third step are storing data into database for designed. The storage is referring to non-spatial data elements and geographical data. Results indicate three categories of factors, namely steepness factors, land used activities, and vegetation cover factors. Although the GIS indicate the three factors as main influenced of slope failure, however, the slope failure will still continue to danger the human life and properties. Department of Town and Country Planning should control and prevent any development to carry out surrounding the hill of slope.

GIS, steepness factors, land used activities, vegetation cover factors


1. Clark, C. D. (1997). Reconstructing the evolutionary dynamics of former ice sheets using multi temporal evidence, remote sensing and GIS. Quaternary Science Reviews, 16(9), 1067-1092.

2. Heatwole, H., & Higgins, W. (1993). Canopy research methods: a review.Selbyana, 23-23.

3. Malaysia Law. (2002). Town and Country Planning Act 1976 (Act 172). Kuala Lumpur: International Law Book Services.

4. Weng Chan, N. (1998). Responding to landslide hazards in rapidly developing Malaysia: a case of economics versus environmental protection. Disaster Prevention and Management: An International Journal, 7(1), 14-27.

5. Wieczorek, G. F. (1987). Effect of rainfall intensity and duration on debris flows in central Santa Cruz Mountains, California. Reviews in Engineering Geology, 7, 93-104.