Possibility of using compensatory urban drainage techniques as leisure units to expand public areas into subdivisions

Geovana Geloni Parra,Thais Borges Martins Rodrigues,Bernardo Arantes Do Nascimento Teixeira,Érico Masiero

doi:10.1590/2175-3369.013.e20200208

Geovana Geloni Parra, Thais Borges Martins Rodrigues + Show 2 more

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https://doi.org/10.1590/2175-3369.013.e20200208

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Abstract

Abstract Many housing estates of social interest have not contributed to implementing leisure areas and reducing their environmental and urban quality. This paper aims to propose a leisure unit using a compensatory urban drainage technique in a housing complex of social interest in the city of São José do Rio Preto, São Paulo, Brazil. The characterization of the area, land use and occupation surveys, area sectorization, and catchment division were carried out. Afterwards, proposals for interventions based on surface runoff were presented using calculations of existing runoff and future scenarios. Results related to environmental and social gains for the area are discussed, as well as the possibility of implementing decentralized compensatory techniques. Moreover, 156 rain gardens and 3 ditches were proposed throughout the subdivisions, which enabled a gain of 989m² of contribution area to infiltrate the whole area, and the use of the retention basin as a leisure area. The total storage volume achieved with the sum of all the techniques implemented was approximately 3,000 cubic meters more than that projected for the existing retention basin.

Highlights

Urban areas in Brazilian cities have grown uncontrollably since 2009 after creating the “Minha Casa Minha Vida” (MCMV or My Home My Life) program, one of the State’s responses to habitation and economic problems at the time (Rolnik, 2015)
As a way of trying to alleviate these problems related to the lack of public areas, this article aims to identify the urban problems of the housing complex of social interest called “Vida Nova Dignidade”, in São José do Rio Preto, and to propose using rainwater compensatory techniques that the basins already installed in the complex may be used as a leisure area for residents
The proposed use of underused areas considered the relocation of commercial, green and leisure areas to meet the needs for kindergarten, nursery, health unit (UBS), support point, vegetable garden and community association, leisure areas, religious activities, bike racks, public parking and green areas for concomitant seepage purpose

Summary

Introduction

Urban areas in Brazilian cities have grown uncontrollably since 2009 after creating the “Minha Casa Minha Vida” (MCMV or My Home My Life) program, one of the State’s responses to habitation and economic problems at the time (Rolnik, 2015). This program has made it possible for cities to spread widely as its implementation most often occurs in the outskirts of cities, horizontally, forming mega housing estates. In order to avoid or reduce these events, cities propose legislations that obligate new subdivisions to execute retention/seepage basins in their areas

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