Risks of PPRT Tereos in Artenay

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 assignment 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 PPRTs the hazard levels are determined by effect effect on maps by type of effect and overall on an aggregated level on a synthesis map.All hazard areas represented on the hazard map are included. Areas protected by protective structures must be represented (possibly in a specific way) as they are always considered to be subject to hazard (cases of breakage or inadequacy of the structure).The hazard zones may be classified as data compiled in so far as they result from a synthesis using several sources of calculated, modelled or observed hazard data. These source data are not covered by this class of objects but by another standard dealing with the knowledge of hazards.Some areas of the study perimeter are considered “zero 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.本数据集涵盖用于RPP风险分析的危险性地图（hazard map）所标注的一处或多处受灾害影响区域。该危险性地图源自灾害研究，其研究目标为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，评估方法各有特异性，据此可在研究范围内划定若干区域，形成按灾害等级分级的分区方案。对区域内指定点位赋予灾害等级时，需综合考量该危险现象的发生概率及其强度等级。针对PPRTs，灾害等级需依据灾害影响类型区分标注于对应地图，并在综合地图上以聚合层级呈现整体灾害等级。危险性地图上标注的所有灾害影响区域均需纳入本数据集。受防护结构保护的区域亦需标注（可采用特定标注方式），因为此类区域仍存在灾害影响风险（如结构破损或防护不足的情形）。灾害区域可依据整合数据进行分类，前提是该分类基于对多源计算、建模或观测得到的灾害数据的综合分析。此类源数据不属于本对象类别的覆盖范围，而应由另一项关于灾害认知的标准规范。研究范围内的部分区域被划为“零灾害或微灾害区域”，即经研究确认无灾害影响的区域。此类区域不属于本对象类别的覆盖范围，无需作为灾害区域进行标注。