Dataset Direct Download Service (WFS): Plan for the prevention of natural flood risks — Municipalities of the Garonne sector upstream — Revision n°1 Grisolles Pompignan — 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，缩写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管控工具，其目标是对重大风险暴露区域的开发活动进行监测。 PPR由省长审批，通常由领土部门主管局（departmental directorates of the territories，缩写DDT）负责落地实施。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（包括建设条款、降低脆弱性工程、农业使用或作业限制等），规范土地利用行为。 此类计划可处于编制（待核定）、提前实施或已获批三种状态。 PPR档案包含说明性文档、管制分区图则及管制条例。此外可附加有助于理解该计划的各类图文资料（如风险点位、相关议题等）。每项PPR均由多边形地理要素标识：当计划处于编制（待核定）状态时，该多边形对应管控范围内的全部市镇范围；当计划处于获批状态时，则对应受限区域的外包络范围。 本地理数据表可实现省内现有PPRN的空间制图。 N_DOCUMENT_PPRN地理数据表中的每份PPRN文档，均与格式为"ddd[PREF|DDT|DDTM|DREAL]aaaannnn"的GASPAR代码相关联（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）： 1. 一方面是在GASPAR系统中管理的编制（或修订）行政流程； 2. 另一方面是元数据表N_PPRN_AAAANNNN（编号#0001495）中所描述的数值空间数据集集合。