Plan for the prevention of natural risks of landslide — Municipality of Puycornet — Document — Department of Tarn-et-Garonne

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，以下简称PPR）由1995年2月2日《加强环境保护法》确立，是国家在风险预防领域的核心治理工具，其目标为对存在重大风险的区域开展开发活动动态监测。
PPR由省长审批，通常由领地总局（Departmental Directorates of the Territories，以下简称DDT）牵头实施。此类计划通过对现有及未来建筑实施建筑禁令或提出建设要求（含建设规范、脆弱性降低工程、农业使用或作业限制等），以此规范土地利用行为。
此类计划可处于编制（报批）、预实施或已获批三种状态。
PPR档案包含说明性简报、管控分区图与管控规程，其他有助于理解该计划逻辑的可视化文档（如危险源分布图、问题梳理图等）可作为附件补充。每份PPR均通过多边形矢量进行标识：当计划处于报批状态时，该多边形对应纳入管控范围的所有市镇辖区；当计划获批后，则对应受限区域的范围包络。
本地理数据表可实现省内现有PPRN的空间制图展示。
地理数据表N_DOCUMENT_PPRN中的每份PPRN文档，均与格式为"ddd[PREF|DDT|DDTM|DREAL]aaaannnn"的GASPAR编码相关联（其中AAAA与NNNN分别对应GASPAR系统中关联PPR流程的参考年份与序号），具体关联两类信息：
1. 其一为在GASPAR系统中运行的PPR编制（或修订）行政流程；
2. 其二为元数据表N_PPRN_AAAANNNN（编号#0001495）中所描述的数值型空间数据集。