Simple download service (Atom) of the dataset: One-off issue of a PPRN (PPRI du Noireau et de la Vère) in the department of Orne

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.

一般而言，风险受体（stakes）指受致灾因子（hazard）威胁、并可能因此遭受影响或损毁的人员、财产、活动、文化或环境遗产要素。某一议题（issue）针对致灾因子的敏感性被定义为脆弱性（vulnerability）。本对象类别汇集了风险预防计划（Risk Prevention Plan，RPP）研究中涉及的全部议题。所谓议题，是指带有时间标记的对象，其是否被纳入考量取决于RPP的研究目标，以及其针对所研究致灾因子的脆弱性。因此，RPP相关议题是否被纳入分析，需结合当前关注的一种或多种致灾因子类型而定。在议题分析阶段，上述要素构成了研究区域及其周边区域开展RPP编制所需的土地覆盖认知基础。本议题数据集仅为风险预防计划编制阶段，受致灾因子影响的财产与人员状况的（示意性且非穷尽式）快照。该数据集在RPP获批后不再更新。实际应用中该数据集亦不再被直接使用，而是会根据需求，依托最新数据源重新计算相关议题。