Une représentation du risque à l'intersection de l'aléa et de la vulnérabilité: cartographies des inondations lyonnaises

Abstract

Résumé.Essential to risk studies, vulnerability analysis of the assets of an area is often not suitable for practical application. It is usually more an assets census than a real vulnerability assessment, facing a given hazard. Its intersection with the hazards zoning poses also many methodological, cartographic and operational problems. This work starts with the key concepts of risk, thanks to a review of French and international literature study. Then, it provides a procedure which allows precise knowledge of the local vulnerability, available to all types of hazards and applicable to all areas. Finally, in order to get an overall perspective of risk, assets vulnerabilities are crossed with the hazards areas, in accordance to the spatial distribution of both components and using innovative geomatics operations. As part of this study, this methodology will be applied to the rivers flooding and overflowing runoff of the Greater Lyon.

Urban floods management using AHP and FMEA methods-case study of Bejaia, Algeria

“…Generally, the studies relied primarily on the multicriteria analysis, mapping, database, or GIS and remote sensing. Some authors proceed to urban flood impact assessment (Hammond et al, 2015), development of a method for characterizing and evaluating the human risk related to flooding in urban areas (Marion, 2016), application of the Functional Resonance Analysis Method (FRAM) for the qualitative risk analysis of multifunctional flood defenses (Anvarifar et al, 2017), a stress test of urban system flooding upon extreme rainstorms in Hong Kong (He et al, 2021), agent-based modeling and flood risk management (Zhuo & Han, 2020), mapping flood risk (Ouma et al, 2014), flood *Corresponding author, e-mail: azoune.noredine@gmail.com mapping per representation of the risk at the intersection of hazard and vulnerability (Renard & Soto, 2015), urban flood vulnerability zoning using remote sensing and GIS (Sowmya et al, 2015), integration of GIS and Hierarchical Multicriteria Analysis for Mapping Flood Vulnerability (Loumi & Redjem, 2021).…”