Simple download service (Atom) of the dataset: Linear issue of the Plan for the Prevention of Predictable Natural Flood Risks of the Vienna Valley in the Indre-et-Loire

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，承险对象指受灾害威胁、可能遭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（Risk Prevention Plan，以下简称RPP）研究中涉及的全部风险对象。风险对象为具有时间属性的实体，其是否纳入考量取决于RPP的制定目的以及其对应所研究灾害的脆弱性。RPP风险对象可根据所应对的灾害类型决定是否纳入考量。
在开展风险对象分析阶段，上述要素构成了在研究区域及其周边制定RPP所需的土地覆盖知识基础。
本次数据集收录的风险对象数据，为风险预防计划制定阶段受灾害威胁的资产与个体的（具代表性但非穷尽的）快照。该类数据在RPP获批后不再更新。实际应用中此类数据已不再直接复用，风险对象需结合最新数据源按需重新计算生成。