Perimeter of the Risk Prevention Plan Saône Flood — Les Bordes

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.本数据集收录了PPRN在不同发展阶段的边界信息。此类边界的核心特征为：系官方行为的产物，且自指定日期起产生法律效力，具体如下： — 纳入PPR（自然型或技术型）政令 (prescription order) 的规定范围； — 与获批RPP所规制范围相对应的风险暴露范围 (risk exposure)。该获批边界属于公共地役权 (utility easement)（PPRN对应PM1，PPRT对应PM3）； — 研究范围，即开展危险源 (hazards) 研究所覆盖的包络范围 (envelope)。