Site suitability assessment for domestic waste disposal area in Kota Bharu, Kelantan using the Analytical Hierarchy Process and Geographical Information System

This study was conducted to evaluate the potential site location for waste disposal in Kota Bharu, Kelantan, using Analytical Hierarchy Process (AHP) and Geographical Information System (GIS). Seven (7) criteria were considered and ranked based on the literature review and experts' opinions to identify potential waste disposal sites. The data used in this study consist of vector and raster data, including land-use categories, information on residential areas, road networks, slope, and soil types. Additionally, GIS analysis, including Weighted Overlay analysis, was explored and utilised in this study. The output of this study is a suitability map for domestic waste disposal sites using GIS techniques. At the end of the evaluation, the suitability map was divided into four (4) categories: restricted, unsuitable, less suitable, and highly suitable. The area and proportion of each category relative to the total study area were depicted, and the two (2) most suitable potential site areas were identified