Simple download service (Atom) of the dataset: Regulatory zoning of the Flood Risk Prevention Plan (PPRI) of the Gulf of Calvi in Upper Corsica

Plans for the prevention of natural hazards were established by the Act of 2 February 1995 on strengthening the protection of the environment. They are the key instrument of the State in the field of risk prevention. Their objective is to monitor the development of urban planning and land use in areas at risk.
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.

This PPRI concerns the catchment areas of Figarella, Fiume Seccu and Vivariu in the municipalities of Moncale, Lumio, Calenzana and Montegrosso.
The zoning on the municipality of Calvi was annulled by the Administrative Court of Appeal of Marseille.

1995年2月2日出台的《加强环境保护法（Act of 2 February 1995 on strengthening the protection of the environment）》确立了自然灾害防治规划，该规划是国家在风险防控领域的核心工具，其目标是对风险区域内的城市规划与土地利用开发情况进行动态监测。
针对自然风险防控规划（PPRs），《环境法典（Environmental Code）》将区域划分为两类（L562-1）：直接受风险影响区域，以及未直接暴露于风险但可采取措施避免风险加剧的区域。
根据灾害等级的不同，各区域需执行相应的强制性管控要求。相关法规通常将区域划分为三类：
1. 「建筑禁建区（又称『红色区域』）」：此类区域灾害等级较高，通用规则为禁止任何建设活动；
2. 「合规建设区（又称『蓝色区域』）」：此类区域灾害等级为中等，建设项目需符合适配该类风险的相关要求；
3. 未直接暴露于风险，但建设工程、作业项目、开发活动或农场、农业、林业、手工艺、商业及工业经营活动可能加剧既有风险或引发新风险的区域，需遵守相关禁令或管控要求（详见《环境法典》第L562-1条）。该类区域仅适用于自然风险防控规划（RPPs）。
本次风险防控规划（PPRI）涉及蒙卡莱（Moncale）、卢米奥（Lumio）、卡伦扎纳（Calenzana）与蒙特格罗索（Montegrosso）各自治市境内的菲加雷拉（Figarella）、谢库河（Fiume Seccu）与维瓦里乌（Vivariu）流域汇水区。
卡尔维（Calvi）自治市的区域划定方案已被马赛行政上诉法院撤销。