Description succincte
(Français)
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Notre recherche se concentre sur l'étude des dynamiques territoriales et des processus d'apprentissage liés à des épisodes d'inondation dans des zones urbanisées. A l'aide de trois études de cas régionales dans trois parties de la Suisse (canton de Genève, région de Saillon dans le canton du Valais, et vallée de la Thur dans le canton de Thurgovie), nous étudierons les impacts provoqués par des situations de crise hydrologique en considérant deux paramètres principaux : la création de connaissances en matière de risques d'inondation et de gestion de crise, ainsi que les modifications des dynamiques territoriales, tant du point de vue socio-économique qu'institutionnel.
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Partenaires et organisations internationales
(Anglais)
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CZ, FI, FR, EL, IT, NL, NO, PT, CS, SI, CH, UK
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Résumé des résultats (Abstract)
(Anglais)
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The last decade has shown that despite the efforts made to control river flooding for over a century, Switzerland is not safe from the danger of flooding. The catastrophic floods of 1987, 1993, 1994, 1999 and 2000 in different regions of the country are only the most important national events and do not include localised events. Following storms, these floods showed just how highly vulnerable our country is to hydrological disasters. The cost of these catastrophes is more and more important due to the intensive land use and the sophistication of the property effected by flooding, especially in highly urbanised areas. In addition to the damage caused by the flooding and the consequent rebuilding, compensation and insurance processes, which follow, flooding also often leads to large scale territorial changes (modification of property value, changes in zonage plans/territorial planning) and important changes in the organisation domain (for instance, structure modification in crisis management, institutional changes or the emergence of new actors). Our research is essentially focused on the study of territorial dynamics and the learning processes linked to flooding episodes in urban areas. In basing ourselves on three regional case studies in three different regions of Switzerland (canton of Geneva, urban agglomeration in Valais (Saillon), and the Thur valley), we will study the impact of catastrophic events on two main parameters: creation of flood hazard and hydrological crisis management knowledge, and modifications in territorial dynamics, not only from the socio-economical point of view (for example, changes in property value) but also at the institutional level. In particular, we have been focusing on the following points: - How is the flood hazard taken into account by territorial planning practice (anticipation and planning of the hazard); - What water management activities (for instance, sampling, flow control or river revitalisation) and which actors influence, positively or negatively, flood hazard management; - How is the information learnt from crisis events or disasters taken into account? What actors (in-stitutional or other) are concerned. In conclusion, this research documents the analysis of the social and territorial mecanisms involved in flood crisis situations.
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