Perimeter of the Meythet natural hazard prevention plan (Haute-Savoie) — approved on 29/01/2009

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在各开发阶段的边界范围。此类边界的核心特征为：均由官方文书所确立，且自指定日期起产生法律效力，具体包含以下三类： — 纳入PPR（自然类或技术类）核准令中的法定适用范围； — 与经批准的RPP所规制范围相对应的风险暴露范围，该经核准的边界属于公共地役权（PPRN对应PM1，PPRT对应PM3）； — 研究范围，即开展危险评估时所覆盖的边界域。