Map Viewing Service (WMS) of the data batch: 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。编制风险预防计划会生成一系列空间数据，并将其归类为多个数据集。同一份风险预防计划可包含以下空间数据集：
• 涵盖各类边界的主体风险预防计划（研究边界、管控边界、法定范围）；
• 计划获批后的限制开发区域。
风险预防计划的监管规则通常会对以下区域进行明确区分：
• 「禁建区」（亦称「红色区域」）：该区域灾害风险等级较高，通用规则为禁止建设；
• 「合规管控区」（亦称「蓝色区域」）：此类区域包含两类，一类为灾害风险等级中等、项目建设需根据问题类型适配相应管控要求的区域；另一类为未直接暴露于风险之中，但仍需遵守相关禁令或管控规定的区域；
• 灾害风险区划图：用于与承灾体（stakes）叠加开展风险分析的灾害分布图，需明确标注每个区域所面临的灾害风险等级；
• 承灾体：指受灾害威胁、可能因灾害遭受影响或损失的对象，包括人员、财产、生产活动、文化或自然遗产元素等；
• 风险源：指实际存在的、因其存在而构成潜在风险的实体。该实体可通过名称、外部对象引用或定位该风险实际来源的地理对象进行表征。