PRIORITY SELECTION OF RESIDENTIAL DEVELOPMENT AREAS WITH FLOOD HAZARD IN LIMAPULUH KOTA DISTRICT, WEST SUMATRA

Abstract

The flood disaster has caused much harm to human life. The Effort to reduce the disadvantages caused by the flood is to develop settlement area priority based natural disaster. The purpose of research to determine the priority zone of settlement development using geography information system method (GIS) with regards to hazard risk. The indicator used in determining of area suitability for the settlement are a slope, flood, drainage, gravel, texture, and effective depth. Meanwhile, the Indicators used to determine of flood hazard zone are kinds of soil, slope, landform, rainfall, elevation, land use, and geology. The result shows that the level of area suitability and flood hazard of Limapuluh Kota district were 46% and 50.6%, respectively, these results are categorized as prone to moderate. The analysis result for priority of settlement area development for Limapuluh Kota district shows that it was suitable for S2 (fourth level priority) and flood hazard to medium. Therefore, in the use of area needs more cost and environmental conservation as disaster mitigation efforts for the future.