Simple download service (Atom) of the dataset: Hazard area of the risk prevention plan for terrain movements of the Clain Valley department of Vienna

Area exposed to one or more hazards land movements 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.本类对象指用于RPP风险分析的灾害地图（hazard map）上标注的、受一处或多处地面移动灾害（land movements）影响的区域。 该灾害地图源自灾害专项研究，其核心目标为评估研究区域内任意点位处各类灾害的强度。不同灾害类型对应专属的评估方法，最终会在研究范围内划定一系列区域，形成按灾害等级分级的区划。在某一特定地域点位分配灾害等级时，需综合考量该危险现象的发生概率及其强度等级。 针对多随机PPRNs场景，通常会在灾害地图上为每个区划分配对应其受影响灾害的专属编码以作标识。 所有灾害地图上标注的灾害区域均需纳入本类对象范畴。受防护结构保护的区域也必须（可采用专属标注方式）予以呈现，因为即便设有防护结构，仍存在结构破损或防护不足而引发灾害影响的可能。 灾害区划可视为经整合加工的数据产物，其整合了多源的计算、建模或实测灾害数据。本类对象不涉及上述源数据，相关源数据的规范由另一项灾害认知相关标准予以规定。 研究区域内部分区域被划为“无灾害或灾害可忽略区域”，即经专项研究确认无灾害风险的区域。此类区域不属于本类对象范畴，无需作为灾害区划进行标注。但针对天然RPPs场景，监管区划可能会将部分未受灾害影响的区域划定为管控区域。