Scope of the Verchaix Natural Risk Prevention Plan (Haute-Savoie) — approved on 24/11/2000

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.本数据集涵盖了PPRN开发各阶段的边界范围。此类边界的核心特征为：其由官方行政行为确立，并自指定生效日期起产生法律效力，具体如下： —— 纳入PPR（天然类或技术类）管控指令中的法定管控范围； —— 与经核准的RPP所规制范围相对应的风险暴露范围，该核准边界为公用役权（PPRN对应PM1，PPRT对应PM3）； —— 研究范围，即开展危害研究的范围包络。