Map Viewing Service (WMS) of the dataset: Surface issue taken into account in a technological risk prevention plan — Picoty SA in Chasseneuil-du-Poitou

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 or near the study area, at the time of the analysis of the issues. The data on issues represent a (figible and non-exhaustive) photograph of assets and individuals 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，风险受体是指受灾害威胁、并可能因此遭受影响或损毁的人员、财产、生产活动、文化或环境遗产要素。某一对象对灾害的敏感程度被称为脆弱性（vulnerability）。 本对象类别涵盖了风险预防计划（RPP, Risk Prevention Plan）研究中涉及的全部研究对象。此处的“研究对象”为带有明确时间基准的实体，其是否纳入考量取决于风险预防计划的目标，以及该对象针对所研究灾害的脆弱性。因此，是否将某一风险预防计划研究对象纳入分析，需根据所应对的灾害类型而定。 在开展研究对象分析时，上述要素构成了在研究区域及其周边制定风险预防计划所需的土地覆盖认知基础。 本研究对象相关数据，是风险预防计划制定阶段受灾害威胁的资产与人群的可靠且非穷尽的快照。该数据在风险预防计划获批后不再更新。实际应用中此类数据已不再直接使用：研究对象会根据需要，通过最新数据源重新计算生成。