Quantification of flood risk mitigation benefits: A building-scale damage assessment through the RASOR platform

Arrighi, Chiara; Rossi, Lauro; Trasforini, Eva; Rudari, Roberto; Ferraris, Luca; Brugioni, Marcello; Franceschini, Simone; Castelli, Fabio

doi:10.1016/j.jenvman.2017.11.017

Cited by 65 publications

(64 citation statements)

References 34 publications

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“…Against such background, which identifies a CPA role in Italia Sicura structure, we focus on the case of the reduction of flood risk for the city of Florence, deriving model parameters from updated studies (Arrighi, Brugioni, Castelli, Franceschini, & Mazzanti, ; Arrighi et al., ).…”

Section: Italia Sicura and The Case Of Florencementioning

confidence: 99%

“…Arrighi et al. () estimated this reduction to be about 20%, while the “target risk” corresponding to the standard 200 years safety level would require a 82% reduction.…”

Section: Italia Sicura and The Case Of Florencementioning

confidence: 99%

“…() and Arrighi, Rossi, et al. (), where a quantification of flood risk and mitigation benefits is assessed.…”

Section: Italia Sicura and The Case Of Florencementioning

confidence: 99%

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Financial Instruments for Mitigation of Flood Risks: The Case of Florence

2018

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This article analyzes the mechanisms and effects of innovative financial instruments that a central public administration (CPA) may adopt to minimize the flood risk in particularly exposed regions. The pattern we suggest assumes that in risky areas the CPA can issue two financial instruments, called project options and CAT-bonds, producing a dynamic interaction among three types of agents: the CPA itself, the local public administrations, and private investors. We explore the possible scenarios of such interaction and the conditions under which the CPA's goal of maximal risk reduction is attained. This pattern is proposed for flood risk mitigation in the city of Florence, where the model dynamics are tested assuming parameters obtained from engineering studies.

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Section: Italia Sicura and The Case Of Florencementioning

confidence: 99%

“…Arrighi et al. () estimated this reduction to be about 20%, while the “target risk” corresponding to the standard 200 years safety level would require a 82% reduction.…”

Section: Italia Sicura and The Case Of Florencementioning

confidence: 99%

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Financial Instruments for Mitigation of Flood Risks: The Case of Florence

2018

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“…The objective of public decision-makers is to maximise the ratio between the advantage of a measure and its construction cost. The advantage can be estimated in terms of avoided flood losses obtained by comparing current state with a future state where mitigation works are operational (Arrighi et al, 2018;Garrote, Alvarenga, & Diez-Herrero, 2016).…”

Section: Introductionmentioning

confidence: 99%

Effects of digital terrain model uncertainties on high‐resolution urban flood damage assessment

Arrighi

Campo

2019

J Flood Risk Management

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This work investigates the impact of high‐resolution digital terrain model (DTM) uncertainties on the estimation of urban flood losses. Starting from a Light Detection And Ranging (LiDAR)‐derived DTM of an urban area, four digital terrain representations (raw data, building footprints filled, buildings as waterproof blocks, and different elevation data merged) are used to generate a computational mesh to run a 2D flood model for three inundation scenarios, differing in flood volumes. The most detailed DTM is obtained by merging the DTM with elevation points based on a two‐step optimal interpolation algorithm. A flood damage model based on stage‐damage curves is used to estimate monetary losses to structures at the building scale. Flood maps and flood losses are then compared for each terrain representation. The application of the method to an Italian urban district shows that (a) a significant mismatch between manually surveyed elevation points and DTM can be observed, (b) different sources of elevation data can be merged to obtain an optimal representation of the terrain, (c) in dense urban settlements, important differences in flood extent and losses (up to 180%) occur depending on terrain representation. Considerations on time effort required by the increasing detail of the DTM and on the transferability of the results are presented.

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“…In addition, free and open-source software for modeling flood risk has also been developed and it can be easily applied by stakeholders to establish efficient mitigation strategies [25,26]. Flood risk assessment is also important to estimate the benefit of flood mitigation strategies and to quantify residual risk [27]. The identification of flood hazard areas will contribute to prioritizing risk prevention measures to optimize investments [23].…”

Section: Introductionmentioning

confidence: 99%

Assessment of Tangible Direct Flood Damage Using a Spatial Analysis Approach under the Effects of Climate Change: Case Study in an Urban Watershed in Hanoi, Vietnam

Kefi

Mishra

Kumar

et al. 2018

IJGI

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Due to climate change, the frequency and intensity of Hydro-Meteorological disasters, such as floods, are increasing. Therefore, the main purpose of this work is to assess tangible future flood damage in the urban watershed of the To Lich River in Hanoi, Vietnam. An approach based on spatial analysis, which requires the integration of several types of data related to flood characteristics that include depth, in particular, land-use classes, property values, and damage rates, is applied for the analysis. To simulate the future scenarios of flooding, the effects of climate change and land-use changes are estimated for 2030. Additionally, two scenarios based on the implementation of flood control measures are analyzed to demonstrate the effect of adaptation strategies. The findings show that climate change combined with the expansion of built-up areas increases the vulnerability of urban areas to flooding and economic damage. The results also reveal that the impacts of climate change will increase the total damage from floods by 26%. However, appropriate flood mitigation will be helpful in reducing the impacts of losses from floods by approximately 8% with the restoration of lakes and by approximately 29% with the implementation of water-sensitive urban design (WSUD). This study will be useful in helping to identify and map flood-prone areas at local and regional scales, which can lead to the detection and prioritization of exposed areas for appropriate countermeasures in a timely manner. In addition, the quantification of flood damage can be an important indicator to enhance the awareness of local decision-makers on improving the efficiency of regional flood risk reduction strategies.

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Quantification of flood risk mitigation benefits: A building-scale damage assessment through the RASOR platform

Cited by 65 publications

References 34 publications

Financial Instruments for Mitigation of Flood Risks: The Case of Florence

Financial Instruments for Mitigation of Flood Risks: The Case of Florence

Effects of digital terrain model uncertainties on high‐resolution urban flood damage assessment

Assessment of Tangible Direct Flood Damage Using a Spatial Analysis Approach under the Effects of Climate Change: Case Study in an Urban Watershed in Hanoi, Vietnam

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