Scope of the plan for the prevention of natural hazards of Marin (Haute-Savoie) — approved on 27/12/2007

This dataset contains the boundaries at the different stages of the development of the PPRN. The characteristic of these perimeters is to be the consequence of an official act and to produce their effects from a specified date. This is the following: — prescribed scope contained in the prescription order of a PPR (natural or technological); — scope of risk exposure that corresponds to the scope regulated by the approved RPP. This approved perimeter is a utility easement (PM1 for PPRNs and PM3 for PPRTs); — scope of study which corresponds to the envelope in which the hazards were studied.本数据集收录了PPRN发展各阶段的边界范围。此类边界的核心特征为：由官方行为所确立，并自指定日期起生效。具体如下： — 包含于自然类或技术类PPR核准指令中的规定范围； — 与经核准RPP所规制范围相对应的风险暴露范围；该核准边界为公用设施地役权（utility easement），PPRN对应PM1，PPRT对应PM3； — 对应于危险研究覆盖包络的研究范围。