Dataset Direct Download Service (WFS): N_PERIMETRE_PPRN_20140299_S_032

Perimeter of the Natural Risk Prevention Plan Withdrawal of the Argiles of the commune of Saint-Avit-Frandat in the department of Gers. This dataset contains the boundaries at the different stages of the development of the RPP. 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 a PPR’s prescription order;- risk exposure perimeter that corresponds to the perimeter regulated by the approved RPP, this approved perimeter is a utility easement;- study scope that corresponds to the envelope in which the hazards were studied.热尔省（Gers）圣阿维-弗朗达（Saint-Avit-Frandat）市镇黏土层自然风险防治计划（Natural Risk Prevention Plan）退出边界。本数据集收录了自然风险防治计划（Natural Risk Prevention Plan，以下简称RPP）不同发展阶段的边界范围。此类边界的核心特征为：均以官方法定文书为依据，并自指定日期起生效。具体包含以下三类边界： - 法定边界：即自然风险防治规划（Plan de Prévention des Risques naturels，PPR）指令文书中载明的法定边界； - 风险暴露边界：对应经批准的RPP所规制的边界，该经批准的边界属于公用地役权范畴； - 研究范围：即开展灾害风险研究所覆盖的范围。