Dataset Direct Download Service (WFS): Plan for the prevention of natural flood risks — Municipalities of the Garonne sector upstream — Revision n°2 Verdun-sur-Garonne — Perimeter — Department of Tarn-et-Garonne

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。此类边界的核心属性为：其设立依据官方法定程序，且自指定生效日期起产生法律效力，具体包括以下三类：
—— 包含于PPR（自然型或技术型）指令中的规定范围；
—— 与经批准的RPP所规范范围一致的风险暴露范围，该核准后的边界为公用役权（PPRN对应PM1，PPRT对应PM3）；
—— 对应危害研究覆盖范围的研究边界。