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Article

Innovative Vulnerability and Risk Assessment of Urban Areas against Flood Events: Prognosis of Structural Damage with a New Approach Considering Flow Velocity

1
Earthquake Damage Analysis Center (EDAC), Bauhaus-Universität Weimar, Marienstraße 13B, 99423 Weimar, Germany
2
Department of Building Construction/Building Refurbishment, University of Applied Sciences Dresden (HTW Dresden), Friedrich-List-Platz 1, 01069 Dresden, Germany
*
Author to whom correspondence should be addressed.
Academic Editor: Francesco Fiorillo
Water 2022, 14(18), 2793; https://doi.org/10.3390/w14182793
Received: 28 July 2022 / Revised: 30 August 2022 / Accepted: 6 September 2022 / Published: 8 September 2022
(This article belongs to the Special Issue Flood Risk Management and Resilience)
The floods in 2002 and 2013, as well as the recent flood of 2021, caused billions Euros worth of property damage in Germany. The aim of the project Innovative Vulnerability and Risk Assessment of Urban Areas against Flood Events (INNOVARU) involved the development of a practicable flood damage model that enables realistic damage statements for the residential building stock. In addition to the determination of local flood risks, it also takes into account the vulnerability of individual buildings and allows for the prognosis of structural damage. In this paper, we discuss an improved method for the prognosis of structural damage due to flood impact. Detailed correlations between inundation level and flow velocities depending on the vulnerability of the building types, as well as the number of storeys, are considered. Because reliable damage data from events with high flow velocities were not available, an innovative approach was adopted to cover a wide range of flow velocities. The proposed approach combines comprehensive damage data collected after the 2002 flood in Germany with damage data of the 2011 Tohoku earthquake tsunami in Japan. The application of the developed methods enables a reliable reinterpretation of the structural damage caused by the August flood of 2002 in six study areas in the Free State of Saxony. View Full-Text
Keywords: structural damage; damage prognosis; flow velocity; vulnerability classes; validation structural damage; damage prognosis; flow velocity; vulnerability classes; validation
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MDPI and ACS Style

Maiwald, H.; Schwarz, J.; Kaufmann, C.; Langhammer, T.; Golz, S.; Wehner, T. Innovative Vulnerability and Risk Assessment of Urban Areas against Flood Events: Prognosis of Structural Damage with a New Approach Considering Flow Velocity. Water 2022, 14, 2793. https://doi.org/10.3390/w14182793

AMA Style

Maiwald H, Schwarz J, Kaufmann C, Langhammer T, Golz S, Wehner T. Innovative Vulnerability and Risk Assessment of Urban Areas against Flood Events: Prognosis of Structural Damage with a New Approach Considering Flow Velocity. Water. 2022; 14(18):2793. https://doi.org/10.3390/w14182793

Chicago/Turabian Style

Maiwald, Holger, Jochen Schwarz, Christian Kaufmann, Tobias Langhammer, Sebastian Golz, and Theresa Wehner. 2022. "Innovative Vulnerability and Risk Assessment of Urban Areas against Flood Events: Prognosis of Structural Damage with a New Approach Considering Flow Velocity" Water 14, no. 18: 2793. https://doi.org/10.3390/w14182793

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