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Int. J. Environ. Res. Public Health 2016, 13(1), 149; doi:10.3390/ijerph13010149

Rainfall–Runoff Simulations to Assess the Potential of SuDS for Mitigating Flooding in Highly Urbanized Catchments

1
GITECO Research Group, Universidad de Cantabria, Av. de los Castros S/N, 39005 Santander, Spain
2
Centre for Agroecology, Water and Resilience (CAWR), Coventry University, West Midlands CV1 5FB, UK
3
Department of Project and Construction Management, Donostia City Council, Calle Larramendi 16, 20006 Donostia (Gipuzkoa), Spain
4
Department of Geography, Environment and Disaster Management, Coventry University, West Midlands CV1 5LW, UK
*
Author to whom correspondence should be addressed.
Academic Editors: Rao Bhamidiammarri and Kiran Tota-Maharaj
Received: 28 October 2015 / Revised: 28 December 2015 / Accepted: 18 January 2016 / Published: 21 January 2016
(This article belongs to the Special Issue Environmental Systems Engineering)
View Full-Text   |   Download PDF [2993 KB, uploaded 21 January 2016]   |  

Abstract

Sustainable Urban Drainage Systems (SuDS) constitute an alternative to conventional drainage when managing stormwater in cities, reducing the impact of urbanization by decreasing the amount of runoff generated by a rainfall event. This paper shows the potential benefits of installing different types of SuDS in preventing flooding in comparison with the common urban drainage strategies consisting of sewer networks of manholes and pipes. The impact of these systems on urban water was studied using Geographic Information Systems (GIS), which are useful tools when both delineating catchments and parameterizing the elements that define a stormwater drainage system. Taking these GIS-based data as inputs, a series of rainfall–runoff simulations were run in a real catchment located in the city of Donostia (Northern Spain) using stormwater computer models, in order to compare the flow rates and depths produced by a design storm before and after installing SuDS. The proposed methodology overcomes the lack of precision found in former GIS-based stormwater approaches when dealing with the modeling of highly urbanized catchments, while the results demonstrated the usefulness of these systems in reducing the volume of water generated after a rainfall event and their ability to prevent localized flooding and surcharges along the sewer network. View Full-Text
Keywords: geographic information system; rainfall–runoff simulations; stormwater modeling; sustainable urban drainage systems geographic information system; rainfall–runoff simulations; stormwater modeling; sustainable urban drainage systems
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Jato-Espino, D.; Charlesworth, S.M.; Bayon, J.R.; Warwick, F. Rainfall–Runoff Simulations to Assess the Potential of SuDS for Mitigating Flooding in Highly Urbanized Catchments. Int. J. Environ. Res. Public Health 2016, 13, 149.

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