Simple download service (Atom) of the dataset: PPRMT Argenteuil (Area area)

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 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 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. However, in the case of natural PPRs, regulatory zoning may classify certain areas not exposed to hazard as a prescribing area (see the definition of the class “ZonePPR”).

用于RPP风险分析的灾害图上标注的、受一种或多种灾害影响的区域。灾害图是灾害专项研究的成果，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。评估方法因灾害类型而异，据此可在研究范围内划定一系列区域，形成按灾害等级分级的灾害分区。对区域内特定点位的灾害等级赋值时，需综合考量该危险现象的发生概率及其强度等级。针对多随机PPRNs，灾害图上的每个分区通常会通过其受影响的各类灾害对应的编码进行标识。本类对象涵盖灾害图上标注的全部灾害影响区域。受防护结构保护的区域必须（可采用特定方式）予以标注，因为即便有防护结构，仍存在结构破损或失效而导致灾害影响的可能。灾害分区数据可进行分类汇总，前提是该数据由多源计算、建模或观测得到的灾害数据综合生成。本对象类不涵盖这些源数据，相关源数据由另一项灾害认知相关标准进行规范。研究范围内部分区域被视为“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范畴，无需作为灾害分区进行标注。但对于天然PPRs，监管分区可将部分未受灾害影响的区域划定为规定区域（详见“ZonePPR”类的定义）。