Dataset Direct Download Service (WFS): PPRN — PPRN MT Perimeter — Vittonville (54589)

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开发各阶段的边界范围。此类边界范围的核心特征为：由官方行为所催生，且自指定日期起生效。

具体包括以下三类：
— 纳入PPR核定令的法定范围（涵盖天然PPR与工程化PPR）；
— 风险暴露范围，即经核准的RPP所规制的对应范围。该核准边界为地役权（PPRN对应PM1，PPRT对应PM3）；
— 研究范围，即开展危害研判所依托的覆盖区间。