Optimization waste disposal route using GIS in Yogyakarta municipality

The rapid growth of Yogyakarta’s population has resulted in an increase in domestic waste. Waste disposal routes can be optimized using GIS. Research aims to optimize the waste disposal route from the temporary collection (TPS) site to the landfill using a Geographic Information System (GIS). Data on vehicle mileage was obtained by following 35 waste disposal vehicles starting from the vehicle pool to each TPS to heading to landfill. Arc GIS is used to get the optimal route of the data obtained. The results of the optimization are compared with the existing waste disposal routes. Total existing mileage by all waste vehicles is 1606.73 km, while the alternative mileage using GIS is 1416.7 km. Waste disposal routes can be cut down by 13.4%. It is possible to save Rp. 248,243 every day by shortening the path.