Urban management requires the economic return on public investments and reduced maintenance costs.

Since 2001, the environmental legislation in State of Minas Gerais, Brazil, foresees that every county or consortium of counties must present a Sanitary Landfill Project, contemplating the appropriate systems of pluvial drainage, liquid effluent collection and gas drainage

To maximize their reach and effectiveness, adoption of public policies for urban planning must be supported by techniques that allow the seizure and analysis of data relating to the territory where they apply these policies.