Perimeter of the PPRN Garon GLOBAL

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.本数据集收录了PPRN发展各阶段的界址边界。此类界址的核心特征为：系官方行政行为的法定产物，且自指定日期起产生法律效力。具体包含以下三类范畴： - 自然或技术类PPR的规定令中载明的法定界址； - 与经核准RPP所规制范围相对应的风险暴露范围，该经核准的界址属于公共事业地役权范畴（PPRN对应PM1，PPRT对应PM3）； - 与危险源研究包络范围相对应的研究范畴。