Dataset Direct Download Service (WFS): Perimeter of Risk Prevention Plans Loire River Flood

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PPRN发展各阶段的边界范围。此类边界的核心特征为：均由官方行为产生，并自指定日期起生效。具体包含以下三类：——PPR审批令所载的法定范围（涵盖自然类与技术类PPR）；——风险暴露范围：与经审批的RPP所规制的范围一致。该经审批的边界属于公用役权，其中PPRN对应PM1，PPRT对应PM3；——研究范围：即开展灾害隐患研究所覆盖的空间边界。