Simple download service (Atom) of the dataset: Regulated area of the PPRN flooding by overflow of the Charente River on the commune of Chaniers 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（natural PPRs），《环境法典》（Environmental Code）划定了两类区域（L562-1条款）：风险暴露区域，以及虽未直接面临风险但可采取措施规避风险加剧的区域。根据危险等级，每类区域均需遵守强制性建设管控要求。该法规通常将区域划分为三类：1. "禁止建设区"，又称"红色区域"：此类区域危险等级较高，原则上禁止任何建设活动；2. "限制建设区"，又称"蓝色区域"：此类区域危险等级中等，建设项目需适配对应风险类型的管控要求；3. 虽未直接暴露于风险中，但各类建设工程、开发活动或农林牧渔、手工业、商业、工业业态可能加剧既有风险或引发新风险的区域，需遵守相应禁止或管控要求（参见《环境法典》L562-1条款）。该类别仅适用于自然风险预防规划（natural RPPs）。