Simple download service (Atom) of the dataset: Surface challenge of a PPRN (PPRI de la Sarthe) in the department of the orne (shp)

Generally speaking, the stakes are people, property, activities, cultural or environmental heritage elements, threatened by a hazard and likely to be affected or damaged by it. The sensitivity of an issue to a hazard is called “vulnerability.”This object class brings together all the issues that have been addressed in the RPP study. An issue is a dated object whose consideration depends on the purpose of the RPP and its vulnerability to the hazards studied. A PPR issue can therefore be considered (or not) depending on the type or types of hazard being addressed. These elements form the basis of knowledge of the land cover necessary for the development of the RPP, in the study area or near it, at the time of the analysis of the issues. The data on the issues represent a photograph (figential and not exhaustive) of the property and of the people exposed to hazards at the time of the development of the risk prevention plan. This data is not updated after approval of the RPP. In practice they are no longer used: the issues are recalculated as necessary with up-to-date data sources.

简言之，承灾体（stakes）指的是受灾害威胁、并可能因此遭受影响或损毁的人员、财产、各类活动以及文化或环境遗产要素。某一研究对象对灾害的敏感程度被定义为脆弱性（vulnerability）。本对象类别涵盖了风险预防计划（Risk Prevention Plan，简称RPP）研究中涉及的全部研究对象。所谓研究对象，是指带有明确时间标识的实体，其是否纳入评估范围取决于该风险预防计划的目标，以及其对应研究所关注灾害的脆弱性。因此，风险预防计划相关研究对象是否纳入评估，需视所应对的灾害类型而定。在开展研究对象分析的阶段，上述要素构成了研究区域及周边区域内，制定风险预防计划所需的土地覆盖认知基础。该研究对象相关数据，仅为风险预防计划制定之时，受灾害影响的财产与人员情况的快照式记录（figential且非详尽完整）。该类数据在风险预防计划获批后不再更新，实际应用中亦不再直接复用；研究人员需根据实际需求，使用最新数据源重新计算相关研究对象的评估信息。