Articles | Volume 21, issue 6
Nat. Hazards Earth Syst. Sci., 21, 1955–1969, 2021
https://doi.org/10.5194/nhess-21-1955-2021
Nat. Hazards Earth Syst. Sci., 21, 1955–1969, 2021
https://doi.org/10.5194/nhess-21-1955-2021

Research article 24 Jun 2021

Research article | 24 Jun 2021

Indirect flood impacts and cascade risk across interdependent linear infrastructures

Chiara Arrighi et al.

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Cited articles

Achillopoulou, D. V., Mitoulis, S. A., Argyroudis, S. A., and Wang, Y.: Monitoring of transport infrastructure exposed to multiple hazards: A roadmap for building resilience, Sci. Total Environ., 746, 141001, https://doi.org/10.1016/j.scitotenv.2020.141001, 2020. 
Alexander, D.: A magnitude scale for cascading disasters, International J. Disast. Risk Reduct., 30, 180–185, https://doi.org/10.1016/j.ijdrr.2018.03.006, 2018. 
Allen, J.: Using network segments in the visualization of urban isochrones, Cartogr. Int. J. Geogr. Inf. Geovisual., 53, 262–270, 2018. 
Arosio, M., Martina, M. L. V., Creaco, E., and Figueiredo, R.: Indirect Impact Assessment of Pluvial Flooding in Urban Areas Using a Graph-Based Approach: The Mexico City Case Study, Water, 12, 1753, https://doi.org/10.3390/w12061753, 2020. 
Arrighi, C., Brugioni, M., Castelli, F., Franceschini, S., and Mazzanti, B.: Urban micro-scale flood risk estimation with parsimonious hydraulic modelling and census data, Nat. Hazards Earth Syst. Sci., 13, 1375–1391, https://doi.org/10.5194/nhess-13-1375-2013, 2013. 
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Floods may affect critical infrastructure which provides essential services to people. We analyse the impact of floods on road networks and water supply systems, and we investigate how cascade effects propagate if interdependencies among networks are not considered. The analysis shows that if preparedness plans include information on accessibility to key sections of water supply plants, less people suffer from water shortage in case of flood. The method is tested in the city of Florence (Italy).
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