A cost efficiency analysis of flood proofing measures for hydraulic risk mitigation in an Urbanized riverine area
| Autor: | Angela Candela, Giuseppe Tito Aronica, Ugo Ventimiglia |
|---|---|
| Přispěvatelé: | Ventimiglia U., Candela A., Aronica G.T. |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
flood risk management
lcsh:Hydraulic engineering 010504 meteorology & atmospheric sciences Water flow Cost-benefit analysis Flood inundation Flood proofing Flood risk management Geography Planning and Development 0211 other engineering and technologies 02 engineering and technology Aquatic Science 01 natural sciences Biochemistry lcsh:Water supply for domestic and industrial purposes lcsh:TC1-978 Resilience (network) Environmental planning Risk management 0105 earth and related environmental sciences Water Science and Technology 021110 strategic defence & security studies lcsh:TD201-500 Cost efficiency Flood myth Cost–benefit analysis business.industry Flooding (psychology) Settore ICAR/02 - Costruzioni Idrauliche E Marittime E Idrologia flood proofing flood inundation Damages Environmental science cost–benefit analysis business |
| Zdroj: | Water, Vol 12, Iss 2395, p 2395 (2020) |
| Popis: | Non-structural measures for flood risk mitigation are often more economically accessible, easier to implement, and are highly effective, especially in view of the pursuit of risk resilience objectives. Among the non-structural measures, more importance is increasingly being attributed to flood proofing interventions. There are two main types of flood proofing: dry proofing and wet proofing. An example of dry proofing is shielding, which involves the use of flood barriers that can be installed in the entrances of buildings or outside the buildings in order to avoid contact with the houses and deviate the water flow. Their use must be supported by a detailed hydraulic analysis to ensure the correct design is used. This kind of intervention also avoids inducing a feeling of false security (the levee effect) in the exposed population, and therefore contributes to increasing their resilience. The aim of the work presented here is to determine an optimal combination of and choice between different types of structural and non-structural measures through the development of a methodology for assessing the real efficiency levels of different measures, using a cost–benefit analysis (CBA) and starting from the estimation of the direct flood damage. The application of the CBA to a case study of the Mela river in northeastern Sicily, which suffered a flooding event in October 2015, is supported by the determination of the real damages after the flood and the modeling of the same damages for alternative scenarios. The results affirm the possibility of reducing or avoiding some of the damage using the proposed flood proofing measures instead of classical ones. |
| Databáze: | OpenAIRE |
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