Simple download service (Atom) of the dataset: Perimetre of the PPRN of the Lower Bresle Valley

Perimetre of the PPRN of the Lower Valley of Bresle. 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:- prescribed perimeter set out in the Prescribing Order of a PPR (natural or technological);- scope of exposure to risks 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 that corresponds to the envelope in which the hazards were studied.布雷勒河下游河谷PPRN边界 本数据集收录了PPRN在不同发展阶段的边界范围。此类边界的核心特征为：其制定依据为官方正式文书，并自指定生效日期起正式生效。具体涵盖以下三类边界： - 由PPR（自然类或技术类）划定令中载明的法定边界； - 经核准的RPP所规制的风险暴露范围，该核准边界属于公用役地范畴（PPRN对应PM1，PPRT对应PM3）； - 危害研究覆盖范围，即开展风险危害研究的区域范围。