Surface Issue of PPRT DUPONT DE NEMOURS in Haut-Rhin

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，受险标的（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、文化或环境遗产要素。某一对象对灾害的敏感程度被称为“易损性（vulnerability）”。 该对象类别涵盖了风险预防计划（Risk Prevention Plan，下称RPP）研究中涉及的全部风险对象。所谓风险对象，是一类具备时间属性的对象，其是否被纳入考量取决于RPP的目标以及其对所研究灾害的易损性。因此，是否纳入某一RPP风险对象，需结合当前研究涉及的灾害类型而定。 在开展风险对象分析阶段，上述要素构成了研究区域及其周边区域风险预防计划编制所需的土地覆盖认知基础。 该风险对象数据，是风险预防计划编制阶段内暴露于灾害威胁下的资产与受影响群体的（贴合实际且非穷尽的）快照。该数据在RPP获批后不再更新，实际应用中也不再直接沿用：后续需结合最新数据源，按需重新计算风险对象相关信息。