PPRN document on the department of the Meuse (55)

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 building prohibitions or requirements on existing or future buildings (constructive provisions, vulnerability reduction work, restrictions on agricultural use or practices, etc.).
These plans may be under development (prescribed), implemented in advance or approved.
The RPP 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 municipalities
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.
Each PPRN document in the N_DOCUMENT_PPRN geographical table is linked with its GASPAR code in the format “ddd[PREF|DDT|DDTM|DREAL]aaaannnn” (AAAA and NNNN correspond to the reference year and the order number of the associated PPR procedure in GASPAR):
1. its administrative procedure for drawing up (or revising) managed in the GASPAR application, on the one hand,
2. its set of numeric spatial data as described in the metadata sheet N_PPRN_AAAANNNN (#0001495).

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，是国家开展风险预防工作的核心工具。其目标是对存在重大风险区域的开发活动进行监测。
PPR由省长审批，通常由领土事务总局（departmental directorates of the territories, DDT）负责落地实施。该计划通过对现有或拟建建筑设定建筑禁令或要求（含建筑条款、降低脆弱性工程、农业使用或作业限制等），对土地用途或土地利用方式进行管制。
此类计划可处于制定中（已下达指令）、提前实施或获批三种状态。
PPR档案包含说明性文件、管制区划图及管制条例，亦可附设有助于理解该方案的其他图文资料（如风险点位、相关议题等）。每份PPR由对应市镇集合的多边形标识：若处于制定中状态，该多边形对应指令覆盖范围；若处于获批状态，则对应受限区域的边界范围。
本地理数据表可实现省域内现有PPRN的制图展示。
N_DOCUMENT_PPRN地理数据表中的每份PPRN文档，均与其GASPAR编码绑定，编码格式为"ddd[PREF|DDT|DDTM|DREAL]aaaannnn"，其中AAAA与NNNN分别对应关联PPR流程在GASPAR系统中的参考年份与序号：
1. 其在GASPAR系统中管理的编制（或修订）行政流程；
2. 元数据表N_PPRN_AAAANNNN（编号#0001495）中描述的全套数值空间数据。