Simple download service (Atom) of the dataset: Perimeter of the PPRi of Val du Louet and Confluence of Maine and Loire

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：均为官方行为的产物，并自指定日期起产生法律效力。具体如下：
— 载于PPR（自然类或技术类）法定指令中的规定范围；
— 对应经核准RPP所规制范围的风险暴露范围。该核准边界为公用事业地役权（PPRN对应PM1，PPRT对应PM3）；
— 研究范围，即开展危险研究的覆盖包络区间。