Evaluation of flood risk in Sorocaba - Brazil, using fuzzy logic and geotechnology / Avaliação do risco de inundação em Sorocaba - Brasil, usando lógica e geotecnologia fuzzy

Elfany Reis do Nascimento Lopes, Jomil Costa Abreu Sales, José Carlos de Souza, Jocy Ana Paixão de Sousa, Maria Cintia Matias Morais, Roberto Wagner Lourenço


Floods are natural processes capable of destroying cities and lives, causing immeasurable impacts on humanity. The increase in the occurrence of such tragedies is remarkable. Factors interfering with it may be population growth and a fast urbanization. The city of Sorocaba, in São Paulo state, Brazil, is an example of this problem. This study aimed to evaluate the degree of flood risk in urban areas, suggesting an alternative evaluation and a prevention method to decision-making on territorial planning. Therefore, fuzzy logic combined to geotechnology was used for the analysis and identification of areas with a higher degree of relevance to flooding. The evaluated areas have a high risk of flooding during January, but care should be improved for the period between November and March.



Fuzzy Matrix, Urban planning, GIS.


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DOI: https://doi.org/10.34117/bjdv5n2-1119


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