Scope of the PPRL of the Bourret Boudigau sector

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（PPRN）开发各阶段的边界范围。此类边界的核心特征为：系官方行为所产生之结果，且自指定日期起发生法律效力。具体包括以下三类：
— （自然或技术类）PPR（PPR）核准文书中载明的规定范围；
— 对应经核准RPP（RPP）所规制范围的风险暴露范围；该核准边界为地役权，其中PPRN对应PM1，PPRT（PPRT）对应PM3；
— 对应危险源研究覆盖包络的研究范畴。