Scope of the plan for the prevention of natural hazards of Praz-sur-Arly (Haute-Savoie) — approved on 13/04/2012

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（PPRN）发展各阶段的边界信息。此类边界的核心特征为：均由官方法定文书确立，并自指定生效日期起产生法律效力，具体分类如下： — 自然类或技术类PPR（PPR）审批指令中载明的核定范围； — 风险暴露范围，与经正式批准的RPP（RPP）所规制的范围一致。该经批准的边界为法定地役权，其中PPRN对应PM1，PPRT（PPRT）对应PM3； — 研究范围，即开展危险性研究的覆盖空间边界。