Dataset Direct Download Service (WFS): Perimeter of PPRN flooding by overflow of the Charente River of the commune of La Vallée in Charente-Maritime

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);
— scope of risk exposure that corresponds to the scope regulated by the approved RPP.
This approved perimeter is a utility easement (PM1 for PPRNs); — scope of study which corresponds to the envelope in which the hazards were studied.

本数据集涵盖PPRN不同发展阶段的边界范围。此类边界的核心特征为：均由官方行为所确立，且自指定日期起产生法律效力。具体如下：
— 自然PPR处置令中载明的法定适用范围；
— 风险暴露范围，与经核准的RPP所规制的范围一致，该类经核准的边界属于公共役权（utility easement，适用于PPRN的PM1类型）；
— 研究范围，即针对危险开展评估的覆盖范围。