Using the information system and multi-criteria analysis in the geological risk management in São Paulo

Abstract

Since 1980s the surveys space could not definitely follow the growth and the density of favelas, and some communities started to trigger the first records of accidents in areas hitherto stable. The mapping made in 2010 is today the largest geological-risk database in the country. Today, all these information are included in the "Habisp". Habisp is a mapping system of precarious settlements in the city of Sao Paulo, which contains valuable information to face the urban poverty. Poverty which is materialized in Sao Paulo in many ways of informal settlements: slums, irregular settlements, tenement housing, temporary housing and degraded sets. The Habisp stores, organizes, processes and produces high quality geographic information, which serves as support for the technicians of the Housing department in making decisions. The results have been making possible reassessment and adjustment of the low-income intervention projects by the government, prioritizing housing, social-educational infrastructure, and basic-sanitation actions in areas of greatest susceptibility. © Springer-Verlag Berlin Heidelberg 2013.