Dataset Direct Download Service (WFS): Surface issues of the PPRN of the catchment area of the Seine Valley — Boucle d’Elbeuf — Seine-Maritime

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，承险体指受致灾因子（hazard）威胁、并可能受其影响或损毁的人员、财产、活动、文化或环境遗产要素。某一议题针对致灾因子的敏感程度，被定义为易损性（vulnerability）。 该对象类涵盖了风险预防规划（Risk Prevention Plan，RPP）研究中涉及的全部议题。议题是一类带有时间标记的对象，其是否被纳入考量取决于RPP的目标，以及其针对所研究致灾因子的易损性。因此，PPR议题是否被纳入考量，取决于当前所针对的致灾因子类型。 在开展议题分析阶段，上述要素构成了研究区域及其周边区域RPP编制所需的土地覆盖认知基础。 该类议题数据呈现了风险预防规划编制阶段，受致灾因子威胁的资产与人员的（可呈现且非穷尽）快照。该数据在RPP获批后不再更新。实际应用中该数据不再被直接使用，而是根据需要以最新数据源重新计算相关议题。