Using free software to geospatial analysis – case study: seletion of area for sanitary landfill

Abstract

This article presents a case study involving complex geospatial analysis to identify proper areas for sanitary landfill installation. It has been defined the following technical criteria: minimum distance of streams, minimum distance of roads, minimum and maximum distance of urbanized areas, type of soil and terrain slope. To perform this analysis, it was employed a free GIS (opensource), intending not only to verify the analysis methodology, but also to assure the feasibility that kind of tool has on practice. Results have indicated that to perform such a process of geospatial planning using free technology, especially the one employed to the case study developed, is totally feasible.