PPRN — PPR Geographic Data Set Flood — LIVERDUN (54318)

The Risk Prevention Plans (PPR) were established by the Act of 2 February 1995 on strengthening the protection of the environment. They are the key instrument of the State in the field of risk prevention. Their objective is to monitor development in areas exposed to a major risk.The PPRs are approved by the prefects and generally carried out by the departmental directorates of the territories (DDT). These plans regulate land use or land use through construction prohibitions or requirements on existing or future buildings (constructive provisions, vulnerability reduction work, restrictions on use or agricultural practices, etc.).These plans may be under development (prescribed), implemented in advance or approved.The PPR file contains a presentation note, a regulatory zoning plan and a regulation. Other graphic documents that are useful for understanding the approach (e.g. hazards, issues, etc.) can be attached. Each PPR is identified by a polygon that corresponds to the set of affected municipalities within the scope of the prescription when it is in the prescribed state; and the envelope of restricted areas when it is in the approved state. This geographical table allows to map existing PPRNs on the department.

风险预防计划（Risk Prevention Plans，PPR）由1995年2月2日颁布的《加强环境保护法案》确立，是该国风险预防领域的核心政策工具，其目标为对存在重大风险的区域开展开发动态监测。风险预防计划由省长审批，通常由省领土事务总局（Direction Départementale des Territoires，DDT）负责实施。此类计划通过对新建或既有建筑制定施工禁令、相关要求（包括施工规范、减灾工程、使用限制或农业作业规范等），对土地利用与开发活动进行规制。此类计划可处于三种状态：制定中（已下达制定指令）、提前实施或已获批。PPR文件包含说明性报告、规制分区图及正式规制文本。其他有助于理解该计划实施逻辑的图示资料（如风险点位、核心议题等）可作为附件附加。每份PPR通过一个多边形进行唯一标识：当计划处于已下达制定指令的状态时，该多边形对应指令覆盖范围内的所有受影响市镇；当计划处于获批状态时，则对应受限区域的边界包络范围。本地理数据表可用于绘制省内现存的PPRN空间分布。