Flood risk assessment for infrastructure networks

Emanuelsson, M.A.E.; McIntyre, Neil; Hunt, Claire F.; Mawle, R.; Kitson, James; Voulvoulis, Nikolaos

doi:10.1111/jfr3.12028

Cited by 65 publications

(38 citation statements)

References 32 publications

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“…Ivanov et al, 2004;Martina and Entekhabi, 2006;Noto et al, 2008) with specific regard to the application of the width function (WF) geomorphic approach Rodriguez-Iturbe et al, 1994;Rodríguez-Iturbe and Rinaldo, 1997) also considering varying geomorphoclimatic (Graf, 1977;Rodriguez-Iturbe and Valdes, 1979;Rodriguez-Iturbe et al, 1982;Naden, 1992;Di Lazzaro and Volpi, 2011;Volpi et al, 2013) and urban settings (Veitzer and Gupta, 2001;Smith et al, 2002;Ogden et al, 2011) for providing flood risk managers and decision makers an accurate informative framework to develop safe river basin and urban area development and management plans (e.g. Cunha et al, 2011;Faulkner et al, 2012;Pedersen et al, 2012;Ciervo et al, 2014;Emanuelsson et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

On the impact of urbanization on flood hydrology of small ungauged basins: the case study of the Tiber river tributary network within the city of Rome

Nardi

Annis

Biscarini

2015

J Flood Risk Management

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The small ungauged basins of the highly urbanized area of the city of Rome are often the subject of critical flood conditions for the significant human‐made transformations. In this work the EBA4SUB framework, implementing the hydrogeomorphic width function instantaneous unit hydrograph rainfall run‐off model, and using digital elevation model, land use and synthetic precipitation as main input information, is applied for evaluating extreme hydrologic forcing conditions at the basic scale. The goal is to understand the rationale behind the observed increasing frequency of local urban inundations that are also observed in the uplands. Results present the impact of urbanization expressed by both the run‐off coefficient, the artificial drainage, impacted by paved surfaces and a dramatic number of river–road intersections (i.e. culverts), and the upstream to downstream non‐natural scaling behaviour of hydrologic parameters and in particular the peak discharge per unit drainage area.

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Section: Introductionmentioning

confidence: 99%

On the impact of urbanization on flood hydrology of small ungauged basins: the case study of the Tiber river tributary network within the city of Rome

Nardi

Annis

Biscarini

2015

J Flood Risk Management

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“…Complex frameworks, such as the one presented by Emanuelsson et al . (), introduces losses not only to the urban fabric but also to services and the environment. More complex models, where the urban fabric is decomposed into several utilities, have been used by Gain and Hoque ().…”

Section: Introductionmentioning

confidence: 99%

Influence of sewer network models on urban flood damage assessment based on coupled 1D/2D models

Martins

Leandro

Djordjević

2016

J Flood Risk Management

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One of the main steps in assessing flood risk in urbanised areas is the quantification of damage costs. Damage is often estimated based on depth-damage curves for which depth maps are obtained (ideally) from coupled flood models. While the comparative analysis of flood damage models has been extensively researched in the literature, the influence of the underlying sewer network model has not been investigated. In this study, a 2D locally inertial equations flood risk analysis model (GWM) is coupled with two stormwater models (SWMM, tested with three different configurations, and SIPSON). The assessment of the network performance is made through the total exchanged volume between the surface and stormwater system, the surcharged conduits and manholes, maximum overland inundation and costs using a stepped version of the multi-coloured manual depth-damage curves for continuous urban fabric. The models behave similarly; however, they do show differences in the head pressures, number of surcharged manholes and maximum depth in some locations. The case study results show that despite the good agreement in damage between the four configurations (≈6% maximum disagreement), some localised high differences in maximum depth observed [0.25 (m)] exist. It was also shown that SWMM needs to be calibrated in order to perform similarly to Preissmann slot models.

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“…Complexity of decision-making is increased given the large number of alternatives for scale and placement within an urban catchment (Birgani, Yazdandoost, and Moghadam 2013). In addition, the computational expense of 2D above-ground flood modelling limits the number of options that can be analysed prior to detailed design (Emanuelsson et al 2014). This leads to a limited evidence base for decision-makers.…”

Section: Introductionmentioning

confidence: 99%

Rapid assessment of surface-water flood-management options in urban catchments

Webber

Gibson

Chen

et al. 2018

Urban Water Journal

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Surface-water flooding in urban areas has become a pressing issue due to changing precipitation patterns, expanding urban areas and ageing drainage infrastructure. Selection of flood-management options for widespread implementation using quantitative performance measures is both technically and computationally demanding, which limits the evidence available for decision support. This study presents a new framework for surface-water flood-intervention assessment at high resolution. The framework improves computational efficiency through utilisation of accessible data, simplified representations of interventions and a resource efficient cellular automata flood model. The advantages of this framework are demonstrated through an example case study where the performance of 12 high-level intervention strategies has been evaluated. Results from the case study demonstrate that the framework is able to provide quantitative performance values for a range of interventions. The speed of analysis supports the application of the framework as a decision-making tool for urban water planning.

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Flood risk assessment for infrastructure networks

Cited by 65 publications

References 32 publications

On the impact of urbanization on flood hydrology of small ungauged basins: the case study of the Tiber river tributary network within the city of Rome

On the impact of urbanization on flood hydrology of small ungauged basins: the case study of the Tiber river tributary network within the city of Rome

Influence of sewer network models on urban flood damage assessment based on coupled 1D/2D models

Rapid assessment of surface-water flood-management options in urban catchments

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