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Simulação de trajetos de um gasoduto integrando dados de sensoriamento remoto e sistemas de informação geográfica

2010; Editora da Universidade Estadual de Maringá (Eduem); Volume: 32; Issue: 2 Linguagem: Inglês

10.4025/actascitechnol.v32i2.1133

1807-8664

Erivelto Mercante, J. F. G. Antunes,

Automated Road and Building Extraction

The use of decision suport tools in Geographic Information Systems (GIS) has assisted in applications areas such as impact, suitability and viability analysis. This work presents an example of the application of these tools for the analysis of gas pipeline pathway connecting a refinery to three cities in the region of Campinas, São Paulo State. Land use and digital elevation model (DEM) were used as variables. The processing and analysis of spatial information were done using GIS IDRISI. The first approach used a cost surface to determine the least cost route. The pathway obtained considered in the majority areas of pastures and with slope of up to 15%. The second approach was based on multiple criteria analysis balancing factors such as distance, slope and land use. The multiple criteria analysis was influenced by land use; however, the slope and the distance between the cities are the basic factors in tracing the pathway, reflecting the lowest cost. This result constitutes an important subsidy for decisions on the best alternative for gas pipeline pathway, allowing a more rational and less subjective choice.