sustainability Article Flood Risk Assessment in an Underground Railway System under the Impact of Climate Change—A Case Study of the Barcelona Metro Edwar Forero-Ortiz 1,2,* , Eduardo Martínez-Gomariz 1,2 , Manuel Cañas Porcuna 3, Luca Locatelli 4 and Beniamino Russo 4,5 1 Cetaqua, Water Technology Centre, Carretera d’Esplugues, 75, 08940 Cornellà de Llobregat, Barcelona, Spain;
[email protected] 2 Flumen Research Institute, Universitat Politècnica de Catalunya, Calle del Gran Capità, 6, 08034 Barcelona, Spain 3 TMB (Transports Metropolitans de Barcelona), Carrer 60, núm. 21-23, sector A, Pol. Ind. de la Zona Franca, 08040 Barcelona, Spain;
[email protected] 4 AQUATEC (SUEZ Advanced Solutions), Paseo de la Zona Franca, 46-48, 08038 Barcelona, Spain;
[email protected] (L.L.);
[email protected] (B.R.) 5 Grupo de Ingeniería Hidráulica y Ambiental (GIHA), Escuela Politécnica de La Almunia (EUPLA), Universidad de Zaragoza, Calle Mayor, 5, 50100 La Almunia de Doña Godina, Zaragoza, Spain * Correspondence:
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[email protected]; Tel.: +33-783-53-72-22 Received: 19 May 2020; Accepted: 28 June 2020; Published: 30 June 2020 Abstract: Flooding events can produce significant disturbances in underground transport systems within urban areas and lead to economic and technical consequences, which can be worsened by variations in the occurrence of climate extremes. Within the framework of the European project RESCCUE (RESilience to cope with Climate Change in Urban arEas—a multi-sectorial approach focusing on water), climate projections for the city of Barcelona manifest meaningful increases in maximum rainfall intensities for the 2100 horizon.