Geoprocessing applied to the mapping of the areas of irregular occupation in the city of Ponta Grossa (PR)

Abstract

The geoprocessing constitutes an important instrument for accomplishment of mapping of the land use and occupation in urban areas. It allows the collection, the storage, the treatment and analysis of the data in georreferenced form. That technology was used in the elaboration of mapping of the areas with irregular use and occupation of the land existents in the urban space of Ponta Grossa (PR). In summary, the research was accomplished in the following stages: research and bibliographical revision; study of the legislation that regulates the use and the occupation of the urban land; construction of a cartographic base; analysis of correlations among maps to obtain the areas in irregular condition as for the land property, to the land steepness and the domain strip of railroads, rivers and streams and also high electric tension nets. Among the obtained results, it was verified a great number of irregular uses and occupations located in the strips of drainage of the rivers; a prevalence of the residential uses among the irregular occupations, above all of the slum dwellers areas, fact that reveals the access difficulty to the home that is in force in Ponta Grossa, as well as the worsening of the conditions of life of great part of the urban population. Key words: geoprocessing; mapping; irregular use; Ponta Grossa.