Evaluation of landslides susceptibility and risk areas delimitation of urban area in Ilhéus City, Bahia, Brazil
DOI:
https://doi.org/10.14195/2184-8394_114_5Keywords:
Geological risk, Susceptibility, Landslides, Urban planningAbstract
This work has the objective of identifying and analysing the problems of slopes instability in the urban area of Ilhéus city, Bahia State (Brazil) and, consequently, determines the spatial distribution of classes of susceptibility and risk areas in the urban site. The methodology includes the implementation of 1:10,000 scale mapping products, such as geological and geotechnical chart, relief forms, landslides occurren ces, land use and landslides susceptibility mapping. These data were useful for delineation of 44 areas considered at risk, each one characterized by the use of background information that includes socio-economic data and urban infrastructure. Data and information were organized and stored in digital media using the technology of Geographical Information Systems.
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