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Article Dans Une Revue Wildbach und Lawinenverbau Année : 2011

Standards and methods of hazard assessment for rapid mass movements in France

Résumé

Hazard assessment is required for different purposes and is carried out through expertise assessments at differents levels, using various approaches. Hazard assessment and mapping methods are standardized at least for their use in the frame of land-use planning in what is called the plan for the prevention of natural hazards (plan de prévention des risques naturels prévisibles, PPR). This is one of the main instruments used bu the French national authorities for preventing natura hazards while taking them into account in land use development. Within this procedure, a general methodological guidelines document and other documents specific to the different types of hazards specify the conditions and clarify the method and approach proposed to draw up the PPR. One of these documents is dedicated to mass movement hazards. In this procedure, the hazard map is an intermediate step in elaborating the risk map, i.e. the regulations stemming from the PPR (together with the associated regulations). Various types of information available and databases can be used for hazards assessment and hazard mapping, based on an inventory of phenomena and a back-analysis of current and past events. Hazard assessment must characterize a given hazard in terms of intensity and frequency of occurence. For mass movements, specific approaches are proposed, given the specific characteristics of these phenomena.

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Dates et versions

hal-02596913 , version 1 (15-05-2020)

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Citer

Didier Richard. Standards and methods of hazard assessment for rapid mass movements in France. Wildbach und Lawinenverbau, 2011, 166, pp.136-147. ⟨hal-02596913⟩

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