Dataset Direct Download Service (WFS): List of Natural Risk Prevention Plans (PPRN) in the Department of Landes

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，下文简称PPR）由1995年2月2日《加强环境保护法》制定，是国家在风险预防领域的核心管控工具，其目标为对存在重大风险的区域的开发活动实施监测。
PPR由省长（prefects）批准，通常由领土部门主管局（departmental directorates of the territories，DDT）牵头落实。此类计划通过对现有或未来建筑制定建筑禁令或相关要求（含建设性规定、减灾工程、农业使用或作业限制等），对土地利用行为进行规范约束。
风险预防计划可分为三类状态：处于编制指令阶段、提前实施阶段或已获批阶段。
PPR档案包含说明性说明文档、监管分区规划方案及监管条例。其他有助于理解该方案的图示资料（如风险点位、相关问题等）可作为附件附入档案。每份PPR通过一个多边形进行唯一标识：当计划处于编制指令状态时，该多边形对应指令覆盖的全部市镇范围；当计划处于获批状态时，则对应受限区域的包络边界范围。
本地理数据表可用于在各省域范围内绘制现有PPRN的空间分布图谱。
N_DOCUMENT_PPRN地理数据表中的每份PPRN文档，均与其GASPAR代码相关联，该代码格式为"ddd[PREF|DDT|DDTM|DREAL]aaaannnn"（其中"AAAA"与"NNNN"分别对应GASPAR系统中关联PPR流程的参考年份与流程序号）：
1. 其一为该PPRN在GASPAR应用中管理的编制（或修订）行政流程；
2. 其二为元数据表"N_PPRN_AAAANNNN"（#0001495）中描述的全套数值空间数据。