Map Viewing Service (WMS) of the dataset: PPRT 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 makes it possible to map existing PPRTs on the department.
Each PPRT document existing in the geographical table N_DOCUMENT_PPRT 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_PPRT_AAAANNNN (#0001496).

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》确立，是国家在风险预防领域的核心工具，其目标是对存在重大风险的区域开展开发活动监测。
风险预防计划由省长审批，通常由省领土事务局（Direction départementale des territoires，DDT）牵头实施。此类计划通过对既有或新建建筑制定建筑禁令或相关要求（包括建设规范、降险工程、农业使用或作业限制等），对土地利用行为进行规制。
此类计划可处于编制（待颁布）、预实施或已获批三种状态。
风险预防计划档案包含编制说明、管制性分区规划及管理条例，可附加其他有助于理解该计划实施逻辑的图文资料（如风险隐患、相关问题等类型材料）。每个风险预防计划通过一个多边形进行标识：当计划处于待颁布状态时，该多边形对应管控指令覆盖的全部市镇范围；当计划处于已获批状态时，则对应受限区域的边界包络范围。
本地理表格可实现省内已收录PPRT的空间制图。
地理表格N_DOCUMENT_PPRT中收录的每一份PPRT文档，均与其GASPAR编码相关联，该编码格式为"ddd[PREF|DDT|DDTM|DREAL]aaaannnn"（其中AAAA与NNNN分别对应GASPAR系统中关联风险预防计划流程的参考年份与序号）：
1. 其一为在GASPAR系统中管理的编制（或修订）行政流程；
2. 其二为元数据表N_PPRT_AAAANNNN（编号#0001496）中所描述的数值空间数据集。