Simple download service (Atom) of the dataset: Restricted area of the PPRN flooding by overflow of the Boutonne on the commune of Torxé in Charente-Maritime

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.

针对自然风险预防规划（PPRs），《环境法典》第L562-1条将区域划分为两类：风险暴露区域，以及虽未直接面临风险但可采取相应措施避免风险加剧的区域。根据危险等级不同，每类区域均需遵守可强制执行的管控要求。相关法规通常将区域细分为三类：
1. 建筑禁止区（又称"红色区域"）：该区域危险等级较高，基本原则为禁止一切建设活动；
2. 合规管控区（又称"蓝色区域"）：该区域危险等级中等，建设项目需遵守适配风险类型的具体管控要求；
3. 非直接风险暴露区域：此类区域虽未直接面临风险，但各类建设、工程、开发活动或农场、农业、林业、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，需遵守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预防规划（RPPs）。