Simple download service (Atom) of the data package: Plan to prevent the foreseeable natural risks of flooding the Indre Valley in Indre-et-Loire

The COVADIS data standard for risk prevention plans includes all the technical and organisational specifications for the digital storage of geographical data represented in the risk prevention plans (RPPs). The major risks consist of the eight main natural hazards foreseeable in the national territory: floods, earthquakes, volcanic eruptions, terrain movements, coastal hazards, avalanches, forest fires, cyclones and storms, and four technological risks: the nuclear risk, the industrial risk, the risk of transport of dangerous materials and the risk of dam failure.The risk prevention plans (PPR) were established by the Law of 2 February 1995 on strengthening the protection of the environment. The PPR tool is part of the Law of 22 July 1987 on the organisation of civil security, the protection of the forest against fire and the prevention of major risks. The development of a RPP is the responsibility of the State. It is decided by the Prefect. Whether they are natural, technological or multi-risk, risk prevention plans have similarities. They contain three categories of information:• Regulatory mapping translates into a geographical delimitation of the territory concerned by the risk. This delimitation defines areas in which specific regulations apply. These regulations are easement and impose requirements varying according to the hazard level to which the area is exposed. The areas are represented on a zoning plan that fully covers the study area.• The hazards causing the risk are contained in hazard documents which can be inserted in the presentation report or annexed to the RPP. These documents are used to map the different levels of intensity of each hazard taken into account in the risk prevention plan.• The issues identified during the development of the PPR can also be annexed to the approved document in the form of maps.These similarities between the different types of RPPs and the desire to achieve a good level of standardisation of PPR data have led COVADIS to opt for a single data standard, sufficiently generic to process the different types of risk prevention plan (NRPP natural risk prevention plans, technological risk prevention plans PPRT)This data standard does not consist of a complete modelling of a risk plan dossier. The scope of this document is limited to geographical data in the RPPs, whether regulatory or not. Nor is the PPR standard intended to standardise knowledge of hazards.The challenge is to have a description for a homogeneous storage of PPR geographical data, since these data are of interest to several professions within the ministries responsible for agriculture, on the one hand, and ecology, and sustainable development, on the other.

COVADIS数据标准（COVADIS data standard）是面向风险预防计划的数据规范，涵盖风险预防计划（risk prevention plans, RPPs）中地理数据数字化存储所需的全部技术与组织规范。其覆盖的重大风险包含本国领土内可预见的8类主要自然灾害：洪水、地震、火山喷发、地形变动、海岸灾害、雪崩、森林火灾、气旋与风暴，以及4类技术风险：核风险、工业风险、危险物料运输风险与坝体溃决风险。
风险预防计划（risk prevention plans, PPRs）由1995年2月2日发布的《加强环境保护法》制定。该PPR工具同时纳入1987年7月22日发布的《民用安全组织、森林防火与重大风险预防法》的规范范畴。风险预防计划的编制工作由国家负责，最终由省长审批。
无论属于自然风险、技术风险还是多风险类型，各类风险预防计划均具备共通性，均包含三类信息：
• 规制性地图：对受风险影响的领土范围进行地理划定，明确适用特定规制的区域。此类规制为地役权性质，并根据区域面临的灾害等级设定差异化要求。上述区域会在全覆盖研究区域的分区规划图中予以标注。
• 致灾因子文档：相关灾害内容收录于灾害文档中，可嵌入汇报文本或作为风险预防计划的附件。此类文档用于绘制风险预防计划中考量的各类灾害的不同强度等级分布地图。
• 编制过程中识别出的问题：可通过地图形式作为附件附于获批文件之后。
不同类型风险预防计划之间的共通性，以及提升PPR数据标准化水平的需求，促使COVADIS选择单一数据标准——该标准具备足够的通用性，可适配各类风险预防计划，包括自然风险预防计划（natural risk prevention plans, NRPPs）与技术风险预防计划（technological risk prevention plans, PPRTs）。
本数据标准并非对风险计划档案的完整建模，本文档的适用范围仅局限于风险预防计划中的地理数据，无论其是否具备规制属性。同时，PPR标准亦无意对灾害认知进行标准化。
当前面临的核心挑战在于为PPR地理数据提供统一的存储描述规范，因为此类数据分别受到农业、生态与可持续发展相关部委内多个专业领域的关注。