Map Viewing Service (WMS) of the dataset: Perimeter of the PPRi de l’Ouanne

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. 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：其效力源自法定行政行为，并自指定日期起生效。具体分类如下： —— 法定范围：包含于PPR处置令中的法定范围，涵盖自然类与技术类两类； —— 风险暴露范围：与经批准的RPP所规制的范围相一致；该经批准的边界为公用设施地役权（PPRN对应PM1，PPRT对应PM3）； —— 研究范围：即开展灾害研究的覆盖边界。