Data batch direct download service (WFS): Plans for the prevention of natural hazards (PPRN, PPRI) of the Rhône

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 scopes of the RPP; — 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 the hazards to which it is exposed; — issues which are persons, property, activities and elements of cultural or environmental heritage threatened by a hazard and likely to be affected or damaged by it; — origins of risk, i.e. the entity of the real world 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. Each element in the same PPRN dataset is bound by the GASPAR format identifier “ddd[PREF|DDT|DDT|DREAL]aaaannnn” (AAAA and NNNN correspond to the reference year and the order number of the PPR procedure associated in GASPAR) to a single object in the PPRN document table described by the N_DOCUMENT_PPRN metadata sheet.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。 风险预防计划的编制会产出一系列空间数据，并按类别划分为多个数据集。同一风险预防计划（Risk Prevention Plan，PPR）可包含以下空间数据集： — 风险预防计划的核心范围； — 计划获批后的限制区域。风险预防计划的监管规范通常将此类区域区分为两类：其一为“禁建区”（即所谓“红区”），此类区域风险等级较高，通用规则为禁止建设；其二为“受限要求区”（又称“蓝区”），此类区域风险等级为中等，其中既包含需根据问题类型适配相关要求开展项目的区域，也包含未直接暴露于风险但需遵守禁令或规定的区域； — 用于风险分析的风险地图所标注的风险区域，该地图通过与风险受体叠加匹配绘制而成，需为每个区域明确其面临的风险等级； — 风险受体：即受风险威胁、可能因风险遭受影响或损失的人员、财产、活动及文化或环境遗产要素； — 风险源：即现实世界中因其存在而构成潜在风险的实体。该实体可通过名称、外部对象引用或用于定位实际致险实体的地理对象进行标识。 同一PPRN数据集内的每个元素，均需通过GASPAR格式标识符“ddd[PREF|DDT|DDT|DREAL]aaaannnn”（其中AAAA与NNNN分别对应GASPAR系统中关联的风险预防计划程序的参考年份与序号），与由元数据表N_DOCUMENT_PPRN所描述的PPRN文档表中的单个对象绑定。