Banca de DEFESA: RAFAEL AUGUSTO SANTOS DRUMOND

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : RAFAEL AUGUSTO SANTOS DRUMOND
DATE: 28/02/2023
TIME: 14:00
LOCAL: REMOTO
TITLE:

LAND USE PLANNING FOR MITIGATION OF URBAN FLOODS: SCENARIOS SIMULATION FOR THE ADOPTION OF GREEN AND BLUE TECHNIQUES FROM THE NEW MASTER PLAN OF BELO HORIZONTE

KEY WORDS:

gentileza urbana; real estate; master plan; urban drainage.

PAGES: 100
BIG AREA: Ciências Sociais Aplicadas
AREA: Planejamento Urbano e Regional
SUBÁREA: Métodos e Técnicas do Planejamento Urbano e Regional
SUMMARY:

With increasing extreme events caused by climate change, new agendas have been managed in urban planning. The environmental agenda is one of them, at a time when the mode of production of space contributes to the creation of scenarios where the city becomes increasingly vulnerable to the environment in which it operates, a need for changes that consider it becomes increasingly necessary.

The discussion about more sustainable cities is not recent, but the implementation of environmental policies for large urban centers, mainly in Brazil, is still a new process, and one that is not present in most brazilian cities. The city of Belo Horizonte, hit by heavy floods since its foundation, stands out for launching measures in its new Master Plan that encourage increased absorption of rainwater through construction techniques inspired by the Green and Blue Infrastructure (GBI), called ‘Gentileza Urbana’. In addition to providing a decrease in the volume of rainwater, it may contribute to other benefits, which will be discussed in the dissertation.

The work presents an analysis of the environmental policy launched by Belo Horizonte, and the potential capacity of its use in new developments throughout the municipality, by encouraging developers using economic incentives. At the heart of the policy is the trade-off between the Outorga Onerosa do Direito de Construir (OODC), which may be partially waived if the techniques (green roofs, rain garden and rain barrels) are implemented in the new constructions. The values of the Imposto sobre Transmissão de Bens Imóveis (ITBI) were used to simulate the OODC values to be paid for new housing projects, and compared with the discounts that can be generated with the adoption of sustainable techniques in the new constructions.

In this comparison, I considered the parameters referring to land occupation, maximum and basic flor-area ratio, the built area and the permeable area, and the monetary values for the land. For this, data provided by the Treasury Department of Belo Horizonte City Hall, from Jan./2009 to Sep./2021 were used, and data on transactions of vacant lots in that period were used. With these results, we can observe the degree of territorial coverage of the policy in relation to different urban land prices and types of zoning. The results obtained indicate that the OODC discount instruments due to the adoption of sustainable techniques will be adopted in regions where the value of the land is higher.

In addition, to point out the need to think about how to promote the implementation of these techniques in regions where the real estate market does not show interest, especially in the poorest areas of the municipality. Given this, the dissertation aimed to present more financially accessible techniques — alternative and more accessible green roofs —, opening up the possibility of adoption in popular areas. In addition to financial issues, factors such as disputes over the architectural typologies to which these techniques compete, such as parking lots, rooftops or swimming pools, and the lack of incentives for maintaining these infrastructures, and monitoring their implementation, expose some of the weaknesses of this policy. It was perceived that only the incentive will not be enough to solve the problem, requiring a greater participation of the public sector in the implementation of green areas that can contribute to the desired scenario, which can be funded with the resources raised by OODC itself.

BANKING MEMBERS:
Presidente - 3086984 - RENAN PEREIRA ALMEIDA
Interno - 1884478 - RENILSON RODRIGUES DA SILVA
Interno - 1223803 - MARCIO CARNEIRO DOS REIS
Externa à Instituição - LUCIANA SOUZA BRAGANÇA - UFMG
Externo à Instituição - PAULO NASCIMENTO NETO - PUC-PR