scholarly journals A GIS based urban flood risk analysis model for vulnerability assessment of critical structures during flood emergencies

2014 ◽  
Vol 2 (4) ◽  
pp. 2405-2441
Author(s):  
R. Albano ◽  
A. Sole ◽  
J. Adamowski ◽  
L. Mancusi
Keyword(s):  
Risk Analysis ◽  
Urban Area ◽  
Flood Risk ◽  
Urban Areas ◽  
Quantitative Estimation ◽  
Urban System ◽  
Analysis Model ◽  
Urban Flood ◽  
Practical Applications ◽  
Flood Risk Analysis

Abstract. Risk analysis has become a priority for authorities and stakeholders in many European countries, with the aim of reducing flooding risk by considering the priority and benefits of possible interventions. Within this context, a flood risk analysis model was developed in this study that is based on GIS, and integrated with a model that assesses the degree of accessibility and operability of strategic emergency response structures in an urban area. The proposed model is unique in that it provides a quantitative estimation of flood risk on the basis of the operability of the strategic emergency structures in an urban area, their accessibility, and connection within the urban system of a city (i.e., connection between aid centres and buildings at risk) in the emergency phase. The results of a case study in the Puglia Region in Southern Italy are described to illustrate the practical applications of this newly proposed approach. The main advantage of the proposed approach is that it allows for the defining of a hierarchy between different infrastructures in the urban area through the identification of particular components whose operation and efficiency are critical for emergency management. This information can be used by decision makers to prioritize risk reduction interventions in flood emergencies in urban areas.

scholarly journals A quantitative flood risk analysis methodology for urban areas with integration of social research data

2012 ◽  
Vol 12 (9) ◽  
pp. 2843-2863 ◽  
Author(s):  
I. Escuder-Bueno ◽  
J. T. Castillo-Rodríguez ◽  
S. Zechner ◽  
C. Jöbstl ◽  
S. Perales-Momparler ◽  
...  
Keyword(s):  
Decision Making ◽  
Risk Analysis ◽  
Flood Risk ◽  
Urban Areas ◽  
Risk Mitigation ◽  
Quantitative Estimation ◽  
Mitigation Measures ◽  
Risk Awareness ◽  
Flood Risk Analysis ◽  
Flooding Risk

Abstract. Risk analysis has become a top priority for authorities and stakeholders in many European countries, with the aim of reducing flooding risk, considering the population's needs and improving risk awareness. Within this context, two methodological pieces have been developed in the period 2009–2011 within the SUFRI project (Sustainable Strategies of Urban Flood Risk Management with non-structural measures to cope with the residual risk, 2nd ERA-Net CRUE Funding Initiative). First, the "SUFRI Methodology for pluvial and river flooding risk assessment in urban areas to inform decision-making" provides a comprehensive and quantitative tool for flood risk analysis. Second, the "Methodology for investigation of risk awareness of the population concerned" presents the basis to estimate current risk from a social perspective and identify tendencies in the way floods are understood by citizens. Outcomes of both methods are integrated in this paper with the aim of informing decision making on non-structural protection measures. The results of two case studies are shown to illustrate practical applications of this developed approach. The main advantage of applying the methodology herein presented consists in providing a quantitative estimation of flooding risk before and after investing in non-structural risk mitigation measures. It can be of great interest for decision makers as it provides rational and solid information.

scholarly journals A review of advances in urban flood risk analysis over China

2014 ◽  
Vol 29 (3) ◽  
pp. 1063-1070 ◽  
Author(s):  
Jie Yin ◽  
Mingwu Ye ◽  
Zhane Yin ◽  
Shiyuan Xu
Keyword(s):  
Risk Analysis ◽  
Flood Risk ◽  
Urban Flood ◽  
Flood Risk Analysis ◽  
Urban Flood Risk

A flood risk analysis model with topographical inundation and life-loss

2015 ◽  
Vol 168 (3) ◽  
pp. 116-128 ◽  
Author(s):  
Ben Gouldby ◽  
Julien Lhomme ◽  
Sam R. Jamieson ◽  
Dave Hornby ◽  
Stefan Laeger
Keyword(s):  
Risk Analysis ◽  
Flood Risk ◽  
Analysis Model ◽  
Flood Risk Analysis

scholarly journals Flood Risk Analysis for Cascade Dam Systems: A Case Study in the Dadu River Basin in China

Water ◽  
2019 ◽  
Vol 11 (7) ◽  
pp. 1365 ◽  
Author(s):  
Cai ◽  
Zhu ◽  
Peng ◽  
Wang ◽  
Fan
Keyword(s):  
Risk Analysis ◽  
River Basin ◽  
Flood Risk ◽  
Analysis Model ◽  
System A ◽  
Flood Risk Analysis ◽  
Regulation Method ◽  
Flood Regulation ◽  
Dadu River ◽  
Dam Breaking

To quantify the flood risks in cascade dam systems, it is critical to analyze the risk factors and potential breaking failure paths. In this study, Bayesian networks (BNs) were applied to create a flood risk analysis model for a cascade dam system. Expert experiment, historical data, and computational formulas were employed to estimate the prior probability and original conditional probability tables (CPTs) in the BN model; sensitivity analysis was used to ensure the original continuous breaking failure path in the system. To avoid the possible misperceptions of the probability of a certain event, Dam Breach Analysis Model (DB-IWHR) 2014 software and the flood regulation method were used to simulate the dam breaking progress. The posteriori continuous breaking failure paths were obtained, and then the original CPTs were refined based on the new evidence. The proposed method was applied to the Bala-Busigou-Shuangjiangkou (BL-BSG-SJK), which is located upstream of the Dadu River basin in China. The results show that three continuous breaking failure paths could be identified in the researched cascade dam system. A new BN model was created to determine the failure probability of the cascade dam system under the three continuous breaking failure paths. This analytical method may also be useful for other similar cases.

scholarly journals An approach to the implementation of European Directive 2007/60/EC on flood risk management in the Czech Republic

2010 ◽  
Vol 10 (9) ◽  
pp. 1977-1987 ◽  
Author(s):  
A. Dráb ◽  
J. Říha
Keyword(s):  
Risk Management ◽  
Czech Republic ◽  
Risk Analysis ◽  
Flood Risk ◽  
Flood Hazard ◽  
Flood Risk Management ◽  
The Czech Republic ◽  
Practical Applications ◽  
Analysis Methods ◽  
Flood Risk Analysis

Abstract. Directive 2007/60/EC of the European Parliament and of the Council of 23 October 2007 on the assessment and management of flood risks (the Flood Risk Directive) signifies that flood risk analysis methods are gaining ground in EC Member States and, therefore, also in the Czech Republic (CR). Procedures of flood risk analysis have been developed in the Czech Republic since the catastrophic floods of 1997 in line with European and worldwide trends and have been tested and applied in hundreds of case studies to date. Currently, the Flood Risk Directive Guideline based on past experience with flood risk analysis applications is being processed. The aim of the paper is to present flood risk analysis procedures and specially developed techniques for the assembly of flood hazard, danger and flood risk maps. Methods related to flood risk management plans are briefly mentioned as well. The following particular problems are discussed in more detail: an application and extension of the "danger matrix" approach, the definition of residual danger, the formulation of efficiency criteria and preliminary multi-criteria flood risk assessment. These issues were tested in practical applications at pilot locations in the Czech Republic. Present experience provides evidence that the flood risk analysis methods used in the Czech Republic are in harmony with the requirements of the Flood Risk Directive. The proposed and applied methods are based primarily on existing available data such as flood extent maps, cadastral maps, the Register of Census Districts and Structures and others.

scholarly journals COASTAL FLOOD RISK: THE IMPORTANCE OF INTANGIBLE LOSSES AND THEIR INTEGRATION

2012 ◽  
Vol 1 (33) ◽  
pp. 80 ◽  
Author(s):  
Dilani Rasanjalee Dassanayake ◽  
Andreas Burzel ◽  
Hocine Oumeraci
Keyword(s):  
Risk Analysis ◽  
Urban Area ◽  
Flood Risk ◽  
Climate Scenarios ◽  
Joint Research ◽  
Coastal Flood ◽  
Joint Research Project ◽  
Flood Risk Analysis ◽  
Coastal Flood Risk ◽  
Flooding Probability

The joint research project “XtremRisK” was initiated with the main objective of enhancing the knowledge with respect to the uncertainties of extreme storm surge predictions as well as quantifying exemplarily the flood risk under current conditions and future climate scenarios exemplarily for two pilot sites in Germany: Sylt Island representative for an open coast and Hamburg for an estuarine urban area. Flood risk is generally determined by the product of the flooding probability and the possible losses associated with the flood event. Flood losses are categorized as tangible and intangible depending on whether or not the losses can be assessed in monetary values. Up to date, intangible loses are not or only partially incorporated in flood risk analysis due to the lack of appropriate evaluation and integration methodologies. This study focuses on developing methodologies for the evaluation of intangible losses due to flooding and for their integration with tangible losses in flood risk analysis

Flood risk analysis and communication using digital twins of urban areas

2020 ◽  
pp. 1409-1414
Author(s):  
T. Heyer ◽  
H. Hammoudi ◽  
R. Zimmermann ◽  
L. Backhaus ◽  
J. Stamm ◽  
...  
Keyword(s):  
Risk Analysis ◽  
Flood Risk ◽  
Urban Areas ◽  
Digital Twins ◽  
Flood Risk Analysis

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

2014 ◽  
Vol 14 (11) ◽  
pp. 2847-2865 ◽  
Author(s):  
R. Albano ◽  
A. Sole ◽  
J. Adamowski ◽  
L. Mancusi
Keyword(s):  
Risk Reduction ◽  
Urban Area ◽  
Emergency Response ◽  
Urban Areas ◽  
Emergency Services ◽  
Urban System ◽  
Decision Makers ◽  
Practical Applications ◽  
Proposed Model

Abstract. Efficient decision-making regarding flood risk reduction has become a priority for authorities and stakeholders in many European countries. Risk analysis methods and techniques are a useful tool for evaluating costs and benefits of possible interventions. Within this context, a methodology to estimate flood consequences was developed in this paper that is based on GIS, and integrated with a model that estimates the degree of accessibility and operability of strategic emergency response structures in an urban area. The majority of the currently available approaches do not properly analyse road network connections and dependencies within systems, and as such a loss of roads could cause significant damages and problems to emergency services in cases of flooding. The proposed model is unique in that it provides a maximum-impact estimation of flood consequences on the basis of the operability of the strategic emergency structures in an urban area, their accessibility, and connection within the urban system of a city (i.e. connection between aid centres and buildings at risk), in the emergency phase. The results of a case study in the Puglia region in southern Italy are described to illustrate the practical applications of this newly proposed approach. The main advantage of the proposed approach is that it allows for defining a hierarchy between different infrastructure in the urban area through the identification of particular components whose operation and efficiency are critical for emergency management. This information can be used by decision-makers to prioritize risk reduction interventions in flood emergencies in urban areas, given limited financial resources.

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