Dataset Direct Download Service (WFS): PPR USTARITZ (64DDTM20160012) — Hazard Zone of the Ustaritz Flood Prevention Plan (64547), Pyrenees-Atlantiques department.

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 where it 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). Tables of areas exposed to one or more hazards, shown on the map of hazards of the PPR. Warning: The data disseminated is informative and not enforceable against the third party. GIS data were standardised from the digital data used in the development of approved PPRNs. We do not guarantee their completeness and accuracy in relation to the applicable documents. Official documents against third parties may be consulted at the Town Hall or the Prefecture.本类对象指用于风险防护规程（RPP）的风险分析所用灾害地图上标注的、受一种或多种灾害影响的区域。灾害地图源于灾害专项研究，其研究目标为评估研究区域内任意点位的各类灾害强度。针对不同灾害类型需采用专属评估方法，据此可在研究范围内划定一系列按灾害等级分级的区域，形成灾害区划。针对辖区内指定点位的灾害等级赋值，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PPRN，灾害地图上的每个区域通常会通过其受影响灾害对应的专属编码进行标识。本类对象涵盖灾害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（可采用专属方式），因为即便有防护结构，仍存在结构破损或失效导致灾害影响的可能。 灾害区域可被视为经加工的数据集，其数据源于对多源计算、建模或观测得到的灾害数据的综合整合。本类对象不涉及上述源数据，相关源数据由另一项针对灾害认知的标准规范进行管理。 研究区域内部分区域被视为"无灾害或灾害可忽略区域"，即经研究确认灾害影响为零的区域。此类区域不属于本类对象范畴，无需作为灾害区域进行标注。但针对天然RPP，监管区划可能将部分未受灾害影响的区域划定为管控区域（详见PPR类的定义）。 本数据集包含RPP灾害地图上标注的、受一种或多种灾害影响的区域统计表。 ⚠️ 警告：本数据集仅为参考信息，不得作为对第三方具有约束力的执行依据。地理信息系统（GIS）数据由经批准的PPRN编制过程中使用的数字数据标准化而来。本单位不对数据相对于适用文件的完整性与准确性作出保证。针对第三方的正式文件可前往市政厅或地方行政公署查阅。