The Socio-Economic Viability of Urban-Fluvial Parks in the Urban Environment: A Case Study of Maricá, Rio de Janeiro

Original scientific paper

Journal of Sustainable Development of Energy, Water and Environment Systems
ARTICLE IN PRESS (scheduled for Vol 13, Issue 02 (SDEWES 2024)), 1130560
DOI: https://doi.org/10.13044/j.sdewes.d13.0560 (registered soon)
Hudson de Mello Neto1, Maria Vitória Ribeiro Gomes1 , Luciana Fernandes Guimarães1, Paula Morais Canedo de Magalhães1, Rodrigo Rinaldi de Mattos1, Aline Verol2, Matheus Martins de Souza1, Paulo Magalhães3, Osvaldo Moura Rezende1, Marcelo Miguez2
1 Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
2 Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
3 Federal University of Rio de Janeiro, Brazil - UFRJ, Brazil, Rio de Janeiro, Brazil

Abstract

Open spaces are fundamental in mitigating flooding. This research proposes a practical framework encompassing a business model that discuss the socio-economic viability of implementing urban fluvial parks, while considering expropriation and subsequent compensation for landowners. The method consists of two steps: the first assesses urban flood impacts at the watershed scale and compares to the implementation costs of blue-green infrastructure, which is defined by interconnected natural and human-made elements such as water bodies and vegetated areas. If this relation is positive, the second step addresses local scale issues, integrating urban-fluvial parks and new urban subdivisions in a win-win business model. Results showed that, over a 50-year horizon, the proposed interventions outweighed their implementation and maintenance costs. Locally, the assessment revealed an increase in total land value by approximately 40% compared to its original valuation. The study validates the framework, highlighting the importance of establishing a blue-green open space functional system.

Keywords: Floodable parks, Public policy, Real state valuation, Real state devaluation, Resilience to urban flooding, Multifunctionality

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