Dataset Direct Download Service (WFS): The PPRMT of Loir en Vallée en Sarthe

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.

总体而言，风险承险体（stakes）指受灾害威胁、并可能因此遭受影响或损毁的人员、财产、活动及文化或环境遗产要素。承险对象（issue）对灾害的敏感程度被称为易损性（vulnerability）。本数据集的对象类涵盖了风险预防计划（Risk Prevention Plan, RPP）研究中涉及的全部承险对象。所谓承险对象，是一类带有时间标识的研究对象，其是否纳入分析取决于RPP的研究目标，以及其针对所研究灾害的易损性。因此，某一承险对象是否纳入RPP分析，取决于当前研究涉及的灾害类型。在开展承险对象分析阶段，上述要素构成了研究区域及周边区域编制RPP所需的土地覆盖认知基础。该类承险对象数据，是风险预防计划编制阶段所涉及的受灾害影响财产与人员的示意性而非穷尽式快照。该类数据在RPP获批后不再更新，实际应用中也不再直接沿用；研究人员会根据需要，使用最新数据源重新计算承险对象相关信息。