RPP Aalea Zone Vincou/Gartempe Flood

Area exposed to one or more hazards represented on the hazard map used for risk analysis of the RPP. The hazard map is the result of the study of hazards, the objective of which is to assess the intensity of each hazard at any point in the study area. The evaluation method is specific to each hazard type. It leads to the delimitation of a set of areas on the study perimeter constituting a zoning graduated according to the level of the hazard. The allocation of a hazard level at a given point in the territory takes into account the probability of occurrence of the dangerous phenomenon and its degree of intensity. For multi-random PPRNs, each zone is usually identified on the hazard map by a code for each hazard to which it is exposed. All hazard areas shown on the hazard map are included. Areas protected by protective structures must be represented (possibly in a specific way) as they are always considered subject to hazard (case of breakage or inadequacy of the structure). Hazard zones can be described as developed data to the extent that they result from a synthesis using multiple sources of calculated, modelled or observed hazard data. These source data are not concerned by this class of objects but by another standard dealing with the knowledge of hazards. Some areas within the study area are considered “no or insignificant hazard zones”. These are the areas where the hazard has been studied and is nil. These areas are not included in the object class and do not have to be represented as hazard zones. However, in the case of natural RPPs, regulatory zoning may classify certain areas not exposed to hazard as prescribing areas (see definition of the PPR class).本类指代用于反应堆电厂（RPP）风险分析的灾害地图（hazard map）上标注的、遭受一种或多种灾害影响的区域。 灾害地图是灾害研究的成果，该研究的目标是评估研究区域内任意点位的各类灾害强度。针对不同灾害类型，需采用专属的评估方法，由此在研究范围内划定若干区域，形成按灾害等级分级的区划。对区域内某一特定点位的灾害等级进行赋值时，需综合考虑该危险现象的发生概率及其强度等级。 对于多随机PPRNs而言，灾害地图上的每个区域通常会针对其所承受的每种灾害，分配对应的专属代码进行标识。 本类包含灾害地图上标注的所有灾害影响区域。即便区域设有防护结构，也必须予以标注（可采用专属方式），因为防护结构可能发生破损或失效，该区域仍会被视作处于灾害风险之中。 灾害区域可被视为经开发的数据集，其源于对多源计算、建模或观测得到的灾害数据的综合整合。本类数据对象不涵盖这些源数据，相关源数据由另一项针对灾害认知的标准进行规范。 研究区域内的部分区域被视作“无灾害或灾害影响可忽略区域”。这类区域已完成灾害评估且灾害等级为零，因此不纳入本数据类，也无需作为灾害区域进行标注。但对于天然RPPs而言，监管区划可能将部分未受灾害影响的区域划为规定区域（详见PPR类（PPR class）的定义）。