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| Titel |
Modelling the benefits of flood emergency management measures in reducing damages: a case study on Sondrio, Italy |
| VerfasserIn |
D. Molinari, F. Ballio, S. Menoni |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1561-8633
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| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Science ; 13, no. 8 ; Nr. 13, no. 8 (2013-08-01), S.1913-1927 |
| Datensatznummer |
250018585
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| Publikation (Nr.) |
 copernicus.org/nhess-13-1913-2013.pdf |
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| Zusammenfassung |
| The European "Floods Directive" 2007/60/EU has produced an important shift
from a traditional approach to flood risk management centred only on hazard
analysis and forecast to a newer one which encompasses other aspects relevant
to decision-making and which reflect recent research advances in both
hydraulic engineering and social studies on disaster risk. This paper
accordingly proposes a way of modelling the benefits of flood emergency
management interventions calculating the possible damages by taking into
account exposure, vulnerability, and expected damage reduction. The results
of this model can be used to inform decisions and choices for the
implementation of flood emergency management measures. A central role is
played by expected damages, which are the direct and indirect consequence of
the occurrence of floods in exposed and vulnerable urban systems. How damages
should be defined and measured is a key question that this paper tries to
address. The Floods Directive suggests that mitigation measures taken to
reduce flood impact need to be evaluated also by means of a cost–benefit
analysis. The paper presents a methodology for assessing the effectiveness of
early warning for flash floods, considering its potential impact in reducing
direct physical damage, and it assesses the general benefit in regard to
other types of damages and losses compared with the emergency management
costs. The methodology is applied to the case study area of the city of
Sondrio in the northern Alpine region of Italy. A critical discussion follows
the application. Its purpose is to highlight the strengths and weaknesses of
available models for quantifying direct physical damage and of the general
model proposed, given the current state of the art in damage and loss
assessment. |
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