Map visualisation service (WMS) of the dataset: Areas of stakes taken into account in the establishment of Risk Prevention Plans Movement de terrain (PPRMT) of the department of Seine-et-Marne

In general, the stakes are people, property, activities, elements of cultural or environmental heritage, threatened by hazards and likely to be affected or damaged by it. The sensitivity of an issue to a hazard is called “vulnerability”. This class of object includes all the issues that have been taken into account in the PPR study. An issue is a dated object whose consideration is based on the object of the PPR and its vulnerability to the hazards studied. A PPR issue can therefore be taken into account (or not) depending on the type or types of hazard being treated. These elements form the basis of knowledge of the land use required for the development of the RPP, in or near the study area, at the time of the analysis of the issues.The issue data represent a photograph (fixed and not exhaustive) of assets and persons 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 stakes are recalculated as needed with up-to-date data sources.一般而言，受险对象指受灾害威胁、可能遭受影响或破坏的人员、财产、活动及文化或环境遗产要素。风险单元对灾害的敏感性被称为脆弱性(vulnerability)。该对象类别涵盖了PPR研究中已纳入考量的全部风险单元。风险单元是一类带时间标记的对象，其纳入考量的依据为PPR的研究对象，以及该对象针对所研究灾害的脆弱性。因此，PPR相关风险单元是否被纳入考量，取决于当前处置的灾害类型。在风险单元分析阶段，上述要素构成了研究区域及周边区域开展RPP编制所需的土地利用认知基础。该风险单元数据为风险预防规划（RPP）编制阶段，受灾害威胁的资产与人员的静态快照（非穷尽式记录）。该数据在RPP获批后不再更新。实际应用中该数据已不再被使用，相关受险对象会根据需求通过最新数据源重新计算得出。