A GIS-based model to estimate flood consequences and the degree of accessibility and operability of strategic emergency response structures in urban areas

Albano, Raffaele; Sole, Aurelia; Adamowski, Jan; Mancusi, Leonardo

doi:10.5194/nhess-14-2847-2014

Cited by 54 publications

(47 citation statements)

References 19 publications

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“…The intensity criteria of torrent (steep stream) processes, encompassing clear water, hyperconcentrated and debris flows, has been considered in terms of impact forces Quan Luna et al, 2011;Hu et al, 2012); deposit height (Mazzorana et al, 2012;Fuchs et al, , 2007Akbas et al, 2009;Totschnig et al, 2011;Lo et al, 2012;Papathoma-Köhle et al, 2012;Totschnig and Fuchs, 2013); kinematic viscosity (Quan Luna et al, 2011;Totschnig et al, 2011); flow depth (Jakob et al, 2013;Tsao et al, 2010;Totschnig and Fuchs, 2013); flow velocity times flow depth (Totschnig and Fuchs, 2013); and velocity squared times flow depth (Jakob et al, 2012). Different types of elements at risk will show different levels of damage given the same intensity of hazard (Jha et al, 2012;Albano et al, 2014;Liu et al, 2014), therefore vulnerability curves are developed for a particular type of exposed element (such as construction type, building dimensions or road access conditions). A limited number of vulnerability curves for torrent processes have been proposed, and the efforts have been mainly oriented to residential buildings (Totschnig and Fuchs, 2013).…”

Section: Conceptualisation Of Vulnerabilitymentioning

confidence: 99%

Regional prioritisation of flood risk in mountainous areas

Rogelis

Werner

Obregón

et al. 2016

Nat. Hazards Earth Syst. Sci.

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Abstract. In this paper a method is proposed to identify mountainous watersheds with the highest flood risk at the regional level. Through this, the watersheds to be subjected to more detailed risk studies can be prioritised in order to establish appropriate flood risk management strategies. The prioritisation is carried out through an index composed of a qualitative indicator of vulnerability and a qualitative flash flood/debris flow susceptibility indicator. At the regional level, vulnerability was assessed on the basis of a principal component analysis carried out with variables recognised in literature to contribute to vulnerability, using watersheds as the unit of analysis. The area exposed was obtained from a simplified flood extent analysis at the regional level, which provided a mask where vulnerability variables were extracted. The vulnerability indicator obtained from the principal component analysis was combined with an existing susceptibility indicator, thus providing an index that allows the watersheds to be prioritised in support of flood risk management at regional level. Results show that the components of vulnerability can be expressed in terms of three constituent indicators: (i) socio-economic fragility, which is composed of demography and lack of well-being; (ii) lack of resilience and coping capacity, which is composed of lack of education, lack of preparedness and response capacity, lack of rescue capacity, cohesiveness of the community; and (iii) physical exposure, which is composed of exposed infrastructure and exposed population. A sensitivity analysis shows that the classification of vulnerability is robust for watersheds with low and high values of the vulnerability indicator, while some watersheds with intermediate values of the indicator are sensitive to shifting between medium and high vulnerability.

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Section: Conceptualisation Of Vulnerabilitymentioning

confidence: 99%

Regional prioritisation of flood risk in mountainous areas

Rogelis

Werner

Obregón

et al. 2016

Nat. Hazards Earth Syst. Sci.

View full text Add to dashboard Cite

show abstract

“…The values can be expressed as either replacement costs, i.e., the estimated new value of the object or class, or depreciated/repair costs, i.e., an estimate of the present-day cost of replacement or reparation. Replacement costs represent total expected monetary flows and are estimated to be higher than depreciated costs, which express real economic loss [32]. Moreover, the function gives expected losses to a specific property or land use type.…”

Section: General Approach For Flood Risk Analysis Modelsmentioning

confidence: 99%

Collaborative Strategies for Sustainable EU Flood Risk Management: FOSS and Geospatial Tools—Challenges and Opportunities for Operative Risk Analysis

Albano

Mancusi

Sole

et al. 2015

IJGI

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An analysis of global statistics shows a substantial increase in flood damage over the past few decades. Moreover, it is expected that flood risk will continue to rise due to the combined effect of increasing numbers of people and economic assets in risk-prone areas and the effects of climate change. In order to mitigate the impact of natural hazards on European economies and societies, improved risk assessment, and management needs to be pursued. With the recent transition to a more risk-based approach in European flood management policy, flood analysis models have become an important part of flood risk management (FRM). In this context, free and open-source (FOSS) geospatial models provide better and more complete information to stakeholders regarding their compliance with the Flood Directive (2007/60/EC) for effective and collaborative FRM. A geospatial model is an essential tool to address the European challenge for comprehensive and sustainable FRM because it allows for the use of integrated social and economic quantitative risk outcomes in a spatio-temporal domain. Moreover, a FOSS model can support governance processes using an interactive, transparent and collaborative approach, providing a meaningful experience OPEN ACCESS ISPRS Int. J. Geo-Inf. 2015, 4 2705 that both promotes learning and generates knowledge through a process of guided discovery regarding flood risk management. This article aims to organize the available knowledge and characteristics of the methods available to give operational recommendations and principles that can support authorities, local entities, and the stakeholders involved in decision-making with regard to flood risk management in their compliance with the Floods Directive (2007/60/EC).

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“…Indeed, the area has been affected in the past by a great number of flood disasters (AVI project, 2000). Furthermore, recent flood events that have occurred in the south-east of the region have shown the inadequacy of existing structural protection measurements and, hence, the need for the development and use of non-structural mitigation strategies (Albano et al, 2014). Within this context, the READY platform has been developed in order to increase the user's knowledge of flood-risk issues that affect this area.…”

Section: Usefulness and Transportability Of The Ready Webgis: Site-spmentioning

confidence: 99%

READY: a web-based geographical information system for enhanced flood resilience through raising awareness in citizens

Albano

Sole

Adamowski

2015

Nat. Hazards Earth Syst. Sci.

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Abstract.As evidenced by the EU Floods Directive (2007/60/EC), flood management strategies in Europe have undergone a shift in focus in recent years. The goal of flood prevention using structural measures has been replaced by an emphasis on the management of flood risks using nonstructural measures. One implication of this is that public authorities alone not only take responsibility for flood management. A broader range of stakeholders, who may personally experience the negative effects of flooding, also take on responsibility for protecting themselves. Therefore, it is vital that information concerning flood risks is conveyed to those who may be affected in order to facilitate the selfprotection of citizens. Experience shows that problems persist even where efforts have been made to communicate flood risks.There is a need for the development of new tools that are able to rapidly disseminate flood-risk information to the general public. To be useful these tools must be able to present information relevant to the location of the user. Moreover, the content and design of the tool need to be adjusted to laypeople's needs. Dissemination and communication influence both people's access to and understanding of natural risk information. Such a tool could be a useful aid to effective management of flood risks.To address this gap, a web-based geographical information system (WebGIS) has been developed through the collaborative efforts of a group of scientists, hazard and risk analysts and managers, GIS analysts, system developers and communication designers.This tool, called "READY: Risk, Extreme Events, Adaptation, Defend Yourself", aims to enhance the general public knowledge of flood risk, making citizens more capable of responding appropriately during a flood event. The READY WebGIS has allowed for the visualization and easy querying of a complex hazard and risk database thanks to a high degree of interactivity and easily read maps. In this way, READY has enabled fast exploration of alternative flood scenarios or past calamitous events. Combined also with a system of graphic symbols designed ad hoc for communication of selfprotection behaviours, it is believed READY could lead to an increase in citizen participation, informed discussion and consensus building.The platform has been developed for a site-specific application: the Basilicata region, Italy, has been selected as pilot application area. The goal of the prototype is to raise citizen awareness of flood risks and to build social capacity and enhanced resilience to flood events.

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A GIS-based model to estimate flood consequences and the degree of accessibility and operability of strategic emergency response structures in urban areas

Cited by 54 publications

References 19 publications

Regional prioritisation of flood risk in mountainous areas

Regional prioritisation of flood risk in mountainous areas

Collaborative Strategies for Sustainable EU Flood Risk Management: FOSS and Geospatial Tools—Challenges and Opportunities for Operative Risk Analysis

READY: a web-based geographical information system for enhanced flood resilience through raising awareness in citizens

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