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

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.根据COVADIS的国家规范要求，已完成自然灾害预防计划（Natural Hazard Prevention Plan，PPRN）的合规区划数字化工作。针对自然类PPRN，《环境法典》（Environmental Code）将区划划分为两类（条款编号L562-1）：风险暴露区，以及虽未直接面临风险但可采取防控措施避免风险加剧的区域。依据灾害等级，各区域需遵守强制性处置规则。相关法规通常将区划细分为三类：1. 建筑禁止区（又称"红色区域"）：该区域灾害等级偏高，原则上禁止一切建设活动；2. 规定管控区（又称"蓝色区域"）：该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要求；3. 非直接风险暴露区：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风险，需遵守相关禁令或专项要求（详见《环境法典》第L562-1条）。该类区划仅适用于自然类RPPs。