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

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.自然灾害防治规划（Natural Hazard Prevention Plan，PPRN）的合规区划已依据COVADIS的国家规范要求完成数字化处理。针对自然类自然灾害防治规划（PPRN），《环境法典》第L562-1条将区域划分为两类：风险暴露区，以及未直接暴露于风险但可通过预先采取措施避免风险加剧的区域。依据灾害等级的差异，每类区域均需遵守可强制执行的管控规定。相关管控规范通常将区域划分为三类：1. 禁止建设区域（又称红色区域）：此类区域灾害等级较高，通用管控规则为严禁任何建设行为；2. 合规管控区域（又称蓝色区域）：此类区域灾害等级为中等，建设项目需遵守适配问题类型的专项管控要求；3. 未直接暴露于风险，但建设工程、开发活动或农林牧渔、手工业、商业及工业业态可能加剧既有风险或引发新风险的区域，需遵守相关禁止性规定或管控要求（详见《环境法典》第L562-1条）。此类区域仅适用于自然类灾害防治规划（RPPs）。