Dataset Direct Download Service (WFS): Perimeter of the Villards-sur-Thônes natural risk prevention plan (Haute-Savoie) — approved on 21/06/2019

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在各开发阶段的边界范围。此类边界的核心特征为：均由官方行为催生，且自指定日期起正式生效。具体涵盖以下三类： — 自然型或技术型PPR指令文书所载明的规定范围； — 与经批准的RPP所规制范围相对应的风险暴露范围；该经核准的边界属于公用役权范畴，其中PPRN对应PM1，PPRT对应PM3； — 与危险源研究包络范围相对应的研究范围。