Map Viewing Service (WMS) of the dataset: Restricted areas of the plan for the prevention of natural hazards of the commune of Lesparrou

The regulated zoning of the Natural Hazard Prevention Plan (PPRN) is digitised in accordance with the national requirements of COVADIS.
For natural PPRs, the Environmental Code defines two categories of zones (L562-1): risk-exposed areas and areas that are not directly exposed to risks but where measures can be foreseen to avoid exacerbating the risk.
Depending on the hazard level, each area is subject to an enforceable settlement. The regulations generally distinguish three types of zones:
1- ‘Building prohibited areas’, known as ‘red areas’, where the hazard level is high and the general rule is the prohibition on construction;
2- ‘prescribed areas’, known as ‘blue zones’, where the hazard level is average and the projects are subject to requirements adapted to the type of issue;
3- areas not directly exposed to risks but where constructions, works, developments or farms, agricultural, forestry, craft, commercial or industrial could aggravate risks or cause new ones, subject to prohibitions or requirements (cf. Article L562-1 of the Environmental Code). The latter category applies only to natural RPPs.

本数据集依据COVADIS的国家规范要求，完成了自然灾害防治计划（Natural Hazard Prevention Plan，PPRN）管控区划的数字化处理工作。针对自然风险类PPRN，《环境法典》第L562-1条划定了两类管控区域：风险暴露区，以及非直接受风险影响但可预先实施管控措施避免风险加剧的区域。根据风险等级差异，各区域需执行可强制执行的建设管控规则。现行法规通常将管控区划分为三类：
1. 建筑禁建区（又称"红色区域"）：该区域风险等级较高，原则上禁止一切建设活动；
2. 约束性建设区（又称"蓝色区域"）：该区域风险等级为中等，建设项目需遵循适配问题类型的管控要求；
3. 非直接受风险影响，但建设工程、施工项目、开发活动或农林牧渔、手工业、商业及工业经营活动可能加剧既有风险或引发新风险的区域，需遵守相关禁止性规定或管控要求（参见《环境法典》第L562-1条）。该类区域仅适用于自然风险类PPRN。