ANALISIS SPASIAL DAN TOPSIS DALAM PENENTUAN LOKASI TEMPAT PEMBUANGAN AKHIR (TPA) SAMPAH (Studi Kasus Kota Pekanbaru)

Abstract

Pekanbaru city has a land fill site (called TPA) in Muara Fajar sub district which is located far from downtown. The TPA is only one in the city with total of area 8.6 hectares and located in the district of Rumbai. In 2012, the TPA produce 160 ton per day and estimated can only accommodate disposal for the next 2.5 years. The purpose of this study is to determine process and choose the feasible or suitable location for land fill site in the city. The research method is used overlay technique in Geographic Information System (GIS) & Technique for Order Preference by Similarity to Ideal Solution (TOPSIS). The methodologies can analyze spatial data and quantitative method with calculations of rank. The result of research has achieve 4 feasible location for land fill site. The rank of all locations such as: Palas sub district and Rumbai Bukit sub district in Rumbai district, Tebing Okura sub district in Rumbai Pesisir district, Sail sub district in Tenayan Raya district; and Labuh Baru sub district in Payung Sekaki District. From the TOPSIS analysis, we achieve some suitable location with rank such as: Rumbai District, Rumbai Pesisir, Tenayan Raya and Tampan District. This research have one recommendation that The Rumbai District is most suitable as Land fill site in Pekanbaru city. Keywords: Landfill Site, GIS and TOPSIS