Estudo para o planejamento da cidade do Rio de Janeiro com foco na requalificação e resiliência urbanas

Abstract

The process of disordered urbanization is related to the imbalance between the natural and built environments. One of the main drivers of this situation is the housing deficit and the growth of informal settlements. Rehabilitating the urban fabric with a focus on sustainability can become an important tool for the development of resilient cities. Every year, the world records losses due to disasters, with those associated with urban floods being the most frequent and with severe consequences. This study aims to address issues of organic settlement in river basins and their flooding, as well as the resulting material losses, through better spatial utilization, making use of locations with underutilized urban infrastructure, such as in the central areas of large cities, which in recent years have experienced a process of depopulation. The intention of land-use conversion and the promotion of reoccupation in these areas opens up a new horizon for territorial issues. By gathering available data, researching and interpreting previous reviews, and analyzing modeled scenarios for the Acari River basin, this dissertation aims to propose an alternative for spatial reorganization of densely populated basins, in order to mitigate negative impacts from both environmental and economic perspectives within the explored context. The results obtained show that it is possible to rethink the city with a view to relocating residents who live in places at risk to underutilized locations. In the proposed case study, revealed that there are more vacant properties available than housing subject to very high to medium flood risk. The result of this proposed urban reorganization also allows for economies of scale, if the incorporation of these new open spaces into the local watershed is considered, adding environmental gains for the families that remain in the surrounding area.