The municipality of Itapecerica da Serra is part of the metropolitan area of São Paulo, Brazil. It has about 162.000 inhabitants and a territorial extension of 150km². Most of its territory is included in an environmentally protected area. The diagnosis of areas with geological risk was implemented in order to increment the elaboration of a Local Risk Reduction Plan (PMRR). Besides the identification and analysis of geological and geo-morphological risk situations, the PMRR includes propositions for structural intervention aiming to eliminate or reduce risks, as well as cost estimates and general strategies for risk management. The diagnosis was implemented in 35 areas, in which 66 risk sectors were identified. These sectors involved 419 residences and, among them, 175 are located in sectors with high or very high risk. The proposals for structural intervention required coherence between active geodynamical processes and the kind of intervention proposed for stabilization and control. The definition of priority criteria for the proposed interventions contributed for the insertion of PMRR proposals into the pluri-annual plan of action established by the local government.
Cartography of risk; urban planning; local risk reduction plan; Itapecerica da Serra; São Paulo
