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Article

Socio-Economic Assessment of Green Infrastructure for Climate Change Adaptation in the Context of Urban Drainage Planning

1
AQUATEC—Suez Advanced Solutions, Ps. Zona Franca 46-48, 08038 Barcelona, Spain
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Cetaqua, Water Technology Centre, Carretera d’Esplugues, 75, 08940 Cornellà de Llobregat, Barcelona, Spain
3
Flumen Research Institute, Universitat Politècnica de Catalunya, Jordi Girona 1-3, 08034 Barcelona, Spain
*
Author to whom correspondence should be addressed.
Sustainability 2020, 12(9), 3792; https://doi.org/10.3390/su12093792
Received: 21 March 2020 / Revised: 25 April 2020 / Accepted: 29 April 2020 / Published: 7 May 2020
Green infrastructure (GI) contributes to improve urban drainage and also has other societal and environmental benefits that grey infrastructure usually does not have. Economic assessment for urban drainage planning and decision making often focuses on flood criteria. This study presents an economic assessment of GI based on a conventional cost-benefit analysis (CBA) that includes several benefits related to urban drainage (floods, combined sewer overflows and waste water treatment), environmental impacts (receiving water bodies) and additional societal and environmental benefits associated with GI (air quality improvements, aesthetic values, etc.). Benefits from flood damage reduction are monetized based on the widely used concept of Expected Annual Damage (EAD) that was calculated using a 1D/2D urban drainage model together with design storms and a damage model based on tailored flood depth–damage curves. Benefits from Combined Sewer Overflows (CSO) damage reduction were monetized using a 1D urban drainage model with continuous rainfall simulations and prices per cubic meter of spilled combined sewage water estimated from literature; other societal benefits were estimated using unit prices also estimated from literature. This economic assessment was applied to two different case studies: the Spanish cities of Barcelona and Badalona. The results are useful for decision making and also underline the relevancy of including not only flood damages in CBA of GI. View Full-Text
Keywords: urban flood; water quality; cost-benefit analysis; modelling; combined sewer overflows urban flood; water quality; cost-benefit analysis; modelling; combined sewer overflows
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MDPI and ACS Style

Locatelli, L.; Guerrero, M.; Russo, B.; Martínez-Gomariz, E.; Sunyer, D.; Martínez, M. Socio-Economic Assessment of Green Infrastructure for Climate Change Adaptation in the Context of Urban Drainage Planning. Sustainability 2020, 12, 3792. https://doi.org/10.3390/su12093792

AMA Style

Locatelli L, Guerrero M, Russo B, Martínez-Gomariz E, Sunyer D, Martínez M. Socio-Economic Assessment of Green Infrastructure for Climate Change Adaptation in the Context of Urban Drainage Planning. Sustainability. 2020; 12(9):3792. https://doi.org/10.3390/su12093792

Chicago/Turabian Style

Locatelli, Luca, Maria Guerrero, Beniamino Russo, Eduardo Martínez-Gomariz, David Sunyer, and Montse Martínez. 2020. "Socio-Economic Assessment of Green Infrastructure for Climate Change Adaptation in the Context of Urban Drainage Planning" Sustainability 12, no. 9: 3792. https://doi.org/10.3390/su12093792

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