Natural risk zoning: Perimeter of the Creuse PPRN on the agglomeration of Argenton sur Creuse

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.本数据集涵盖了PPRN在不同发展阶段的各类边界。此类边界的核心特征为：其设立依据官方文书，且自指定日期起产生法律效力。具体包含以下三类边界：1. 由PPR（天然类或技术类）的划定法令所规定的法定划定边界；2. 与经核准的RPP所规制的范围相一致的风险暴露范围；该核准边界属于公用役地（PPRN对应PM1，PPRT对应PM3）；3. 与危害研究所覆盖的范围相一致的研究范围。