Abstract
One of the territories most affected by flooding in Spain is the district of Vega Baja del Segura, located in the southernmost point of the province of Alicante. The objective of this article is to estimate the socio-economic and environmental efficiency of implementing sustainable urban drainage systems (SUDS) as part of the Vega Baja Nature Plan. This plan seeks to optimise rainfall management by reproducing and restoring the natural hydrological processes altered by the urban development of cities through integrated actions that generate new natural areas to be used and enjoyed by the residents. To this end, a cost–benefit analysis was carried out in accordance with the methodology established by the European Commission, and a social profitability of 4.3% (IRR) was obtained for the project, which shows the social benefit to be gained from its execution.
Highlights
IntroductionThe district of Vega Baja del Segura is a high-risk flood area
Introduction and MethodologyThe district of Vega Baja del Segura is a high-risk flood area
The region of Vega Baja is located in the southeast of Spain, in the province of Alicante, which belongs in turn to the Autonomous Community of Valencia (Figure 1)
Summary
The district of Vega Baja del Segura is a high-risk flood area. This risk was heightened by the floods occurring due to the isolated depression at high levels (DANA) during. 365 inhabitants/km , a figure that corresponds to 1.5 times the mean for the Autonomous. Within this framework, in response to this situation, the Regional Government of Valencia established the “Regeneration Plan of Vega Baja—Vega RenHace” in order to repair the damage caused by the DANA in the district and to prepare the territory for future adverse extreme weather effects
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