Scope of the plan for the prevention of natural hazards of Saint-Ferréol (Haute-Savoie) — approved on 06/03/2015

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在不同发展阶段的边界信息。此类边界的核心特征为：由官方行为创设，并自指定日期起产生法律效力。具体包括以下三类： ——自然或技术类PPR规定令所载的法定范围； ——与经批准的RPP所规制范围相对应的风险暴露范围。该经核准的边界为公用役权（PPRN对应PM1，PPRT对应PM3）； ——与危险源研究包络范围相一致的研究范畴。