Perimeter of PPRGA of the municipality of Saint-André (Gers)

Perimeter of the Natural Risk Prevention Plan Withdrawal of the Argiles of the municipality of Saint-André 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.

热尔省圣安德烈市镇阿尔日勒片区自然风险预防计划（Natural Risk Prevention Plan，RPP）撤界范围数据集。
本数据集收录了该RPP不同发展阶段的边界范围。
此类边界的核心特征为均基于法定文书划定，并自指定生效日期起产生法律效力，具体包含以下三类边界：
- 法定划定边界：即依据PPR划定令所明确的边界范围；
- 风险暴露边界：即经批准的RPP所规制的边界，该经批准的边界属于公共役权范畴；
- 研究范围：即开展灾害风险评估所覆盖的空间范围。