Simple download service (Atom) of the dataset: Plan to prevent the natural risks of landslides — Commune de Molières — Zone d’aléas — Department of Tarn-et-Garonne.

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 type of hazard. 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. Award from a hazard level to 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 specific) because they are always considered to be subject to hazard (case of breakage or inadequacy of the work). Hazard zones may be described as data compiled to the extent that they result from a synthesis using multiple calculated hazard data sources, modelled or observed. 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 in a prescribing zone (see definition of Class PPR).本数据集涵盖用于RPP风险分析的灾害风险地图（hazard map）上标注的、受一种或多种灾害（hazard）影响的区域。 该灾害风险地图源于灾害研究，其研究目标为评估研究区域内任意点位处各类灾害的强度。不同类型的灾害对应专属评估方法，该方法将在研究范围内划定若干区域，形成按灾害等级分级的分区体系。为区域内指定点位赋予灾害等级时，需综合考量该灾害现象的发生概率及其强度等级。 针对多随机PPRNs（multi-random PPRNs），通常会在灾害风险地图上为每个分区分配对应其所受各类灾害的专属编码。 本数据集包含灾害风险地图上标注的全部灾害影响区域。受防护结构保护的区域也必须予以标注（可采用专属标注形式），因为此类区域仍存在遭受灾害影响的风险（例如防护设施破损或防护能力不足的场景）。 灾害分区可被定义为经整合形成的数据集，其整合基础为多源计算得到的灾害数据、模拟数据或实测数据。本类数据并不涵盖上述源数据，源数据的相关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认定为无灾害或灾害影响可忽略区域，即经专项研究确认无灾害影响的区域。此类区域不属于本类数据范畴，无需作为灾害分区进行标注。 但针对天然RPP，监管分区可能会将部分未受灾害影响的区域归类为规定区域（详见PPR类别的定义）。