Dataset Direct Download Service (WFS): Regulated zone of the PPRN flooding by overflow of the Charente River in the commune of Brives-sur-Charente en Charente-Maritime de

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.

针对天然潜在风险区域（natural PPRs），《环境法典》第L562-1条将其划分为两类：风险暴露区，以及虽未直接面临风险但可采取相关措施以避免风险加剧的区域。
根据危险等级的差异，每类区域均需遵循可强制执行的管控规则。相关法规通常将区域划分为三种类型：
1. 「禁止建设区」（俗称「红色区域」）：该区域危险等级较高，通用规则为禁止一切建设活动；
2. 「限制建设区」（俗称「蓝色区域」）：该区域危险等级为中等，建设项目需适配对应风险类型的管控要求；
3. 虽未直接面临风险，但建设工程、开发项目或农场、农业、林业、手工业、商业及工业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）。该类别仅适用于天然RPPs（natural RPPs）。