Landfill Site Selection via Geographical Information System and Fuzzy Logic in Uşak Province (Turkey)

Abstract The importance of landfill site selection has grown rapidly in recent years. New and various analytical techniques have also been developed due to recently conducted research. The techniques that have been developed for landfill site selection have been shaped according to the possibilities of the current time. In more recent years, along with breakthroughs in information systems technology, computer-assisted work designs and analytical techniques have come to the forefront. The intention of this study is to identify the best locations to serve as a landfill site across the provincial territory of Uşak, Turkey, while also making use of these modern technologies. This study utilizes the fuzzy logic methodology which has become common in recent years. The criteria set out in this study was digitalized through the design of base maps. ArcGIS 10.2 software was used for the formation of fuzzy membership values and fuzzy overlay procedures. The criteria that are common in the literature for fuzzy logic includes roads, rivers, airports, settlements, faults and landslides, slope, geology, soil, land use capability, and land use. As a result of this study, suitable and unsuitable locations for the purpose of landfilling were identified and mapped. These analyses show that the most optimal locations to serve as a landfill site are mostly located in the southwestern part of the Uşak province