Map Viewing Service (WMS) of the dataset: PPRMT Montigny-lès-cormeilles (Perimeter)

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:- prescribed perimeter set out in the Prescribing Order of a PPR (natural or technological);- scope of exposure to risks 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 that corresponds to the envelope in which the hazards were studied.

本数据集收录了PPRN发展各阶段的边界信息。此类边界的核心特征为：其由官方法令确立，并自指定生效日期起产生法律效力。具体涵盖以下三类边界范畴：
- 由PPR划定令所载明的法定边界（涵盖自然型与技术型PPR）；
- 对应经核准RPP所规制范围的风险暴露范围，该经核准边界属于公用役权范畴（PPRN对应PM1，PPRT对应PM3）；
- 与危险评估所覆盖的包络范围相对应的研究范畴。