Map Viewing Service (WMS) of the dataset: Natural Risk Prevention Plan “ground movements” — Regulatory Area — Commune de Romainville (93063)

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，其核心目标为对风险区域内的开发活动实施管控。编制风险预防计划过程中会生成一系列空间数据，并将其整合为多个数据集。
每份风险预防计划均可涵盖以下空间数据集：
• 核心RPP覆盖范围：包含研究范围、法定管控范围及监管范畴；
• 计划获批后的限制管控区域：RPP的监管规则通常会区分两类管控区域：一是“禁止建设区”，即所谓的“红色区域”，该区域灾害等级较高，原则上禁止开展建设活动；二是“约束管控区”，俗称“蓝色区域”，此类区域灾害等级为中等，项目需根据问题类型适配相应管控要求，此外还涵盖未直接受风险影响但仍需遵守禁令或管控要求的区域；
• 灾害风险区域：用于风险分析的灾害风险地图上标注的区域，通过与承险对象叠加分析划定，需明确各区域所面临的灾害等级；
• 承险对象：指受灾害威胁、可能遭受影响或破坏的人员、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实际致险实体的地理对象进行标识。