Map Viewing Service (WMS) of the dataset: Natural Risk Prevention Plan PPRN of Field Movements — Regulatory Area — Villetaneuse Municipality (93079)

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）是政府开展风险防控的核心工具，其核心目标为管控风险区域内的开发活动。编制风险预防计划会生成一系列空间数据，并整合为多个空间数据集（spatial datasets）。

同一份风险预防计划所涵盖的空间数据集通常包含以下类别：
• 覆盖全域的主体风险预防计划范围（含研究范围、法定适用范围及监管范畴）；
• 计划获批后划定的限制开发区域。风险预防计划的监管规则通常会区分两类管控区域：一是‘禁止建设区’，俗称‘红色区域’，此类区域灾害风险等级较高，通用规则为禁止建设；二是‘合规要求管控区’，又称‘蓝色区域’，该类区域灾害风险等级为中等，开发项目需根据问题类型适配管控要求，同时还包括未直接受风险影响但仍受禁令或管控要求约束的区域；
• 灾害风险区：即用于风险分析的灾害分布地图中所标注的区域，此类区域需与承灾体开展空间叠加分析，并明确标注各区域所承受的灾害风险等级；
• 承灾体（stakes）：即受灾害威胁、可能遭受影响或损失的对象，涵盖人员、财产、生产活动、文化遗产及环境遗产要素等；
• 风险源（origins of risk）：即实际存在的、其自身存在会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风险实际来源的地理对象进行标识。