Map Viewing Service (WMS) of the dataset: PPRN Restricted Areas RHONE AVAL — Central Area

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 areas:1- ‘Building prohibited areas’, so-called ‘red areas’, where the hazard level is high and the general rule is the construction ban;2- ‘prescription areas’, known as ‘blue zones’, where the hazard level is medium and 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, crafts, 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.

针对自然风险防范区域（PPRs），《环境法典》（Environmental Code）第L562-1条明确划定了两类区域：一是风险暴露区域，二是虽未直接面临风险但可通过预先采取措施避免风险加剧的区域。依据危险等级，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以下三类：
1. “禁止建设区域（又称‘红色区域’）”：该区域危险等级较高，基本原则为实施建设禁令；
2. “合规管控区域（又称‘蓝色区域’）”：该区域危险等级为中等，建设项目需根据具体风险类型适配相应管控要求；
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、开发活动或农业、林业、手工业、商业及工业经营场所可能加剧既有风险或引发新的风险，因此需遵守相关禁止性规定或管控要求（详见《环境法典》第L562-1条）。该类别仅适用于自然风险防范区域（RPPs）。