Simple download service (Atom) of the data package: Data set for PPRNs in Paris

Risk Prevention Plans (RPPs) are the key government instrument for risk prevention. Their objective is to control development in areas at risk. The development of a risk prevention plan generates a set of spatial data organised into several data sets. The same PPR may include spatial datasets containing: • main PPR encompassing perimeters (study perimeter, prescription perimeter, regulated scope); • restricted areas of the plan once approved. RPP regulations generally distinguish between ‘construction ban areas’, so-called ‘red areas’, where the hazard level is high and where the general rule is the construction ban; ‘areas subject to requirements’, known as ‘blue zones’ where the hazard level is medium and projects are subject to requirements adapted to the type of issue and areas not directly exposed to risks but subject to prohibitions or prescriptions; • hazard areas represented on the map of hazards used for risk analysis by crossing with the stakes, specifying for each zone the level of hazards to which it is exposed; • stakes (persons, property, activities, cultural or environmental heritage elements) threatened by a hazard and likely to be affected or damaged by it; • origins of risk, i.e. the real-world entity which, through its presence, represents a potential risk. This entity may be characterised by a name, a reference to an external object or a geographical object that locates the actual entity causing the risk.

风险预防计划（Risk Prevention Plans, RPPs）是政府开展风险预防工作的核心工具，其核心目标为管控风险区域内的开发建设活动。一项风险预防计划的编制会生成一系列空间数据，并将其归类为多个数据集。单份RPP所包含的空间数据集通常可涵盖以下内容：
• 主风险预防计划涵盖的各类边界，包括研究范围、法定规制边界、管控范围；
• 计划获批后的限制开发区域；
RPP的相关规制通常会对区域进行分类区分：其一为“禁止建设区”（即所谓“红色区域”），此类区域灾害风险等级较高，通用规则为禁止开展建设活动；其二为“受规制区域”（又称“蓝色区域”），该类区域包含两类子区域：一是灾害风险等级为中等、建设项目需遵循适配于问题类型管控要求的区域；二是未直接暴露于风险之中但仍需遵守相关禁令或规制要求的区域；
• 风险区划数据集：用于风险分析的灾害地图上标注的灾害区域，通过与承灾体叠加分析生成，需明确每个区域所面临的灾害风险等级；
• 承灾体（stakes）：指受灾害威胁、可能遭受影响或损失的人员、财产、活动、文化或环境遗产要素；
• 风险源：指因自身存在而构成潜在风险的现实实体，该实体可通过名称、外部对象引用或用于定位致险实体的地理对象进行标识。