Simple download service (Atom) of the dataset: PPR Technological Document on the department of Bouches-du-Rhône

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 construction prohibitions or requirements on existing or future buildings (constructive provisions, vulnerability reduction work, restrictions on use or agricultural practices, etc.).These plans may be under development (prescribed), implemented in advance or approved.The PPR 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 affected municipalities within 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 mapping existing PPRTs on the department. Each PPRT document existing in the N_DOCUMENT_PPRT 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 order number of the associated PPR procedure in GASPAR): 1. its administrative procedure for the preparation (or revision) managed in the GASPAR application, on the one hand, 2. its set of numerical spatial constituent data described by the metadata sheet N_PPRT_AAAANNNN (#0001496) on the other hand.

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，是该国风险预防领域的核心政策工具，其目标为对面临重大风险区域的开发活动开展监测。风险预防计划由省长批准，通常由领土事务总局（departmental directorates of the territories, DDT）牵头实施，该类计划通过针对现有或未来建筑的建设禁令、相关要求（含建设规范、降脆弱性工程、使用限制或农业生产规范等）规制土地利用行为。风险预防计划可分为三种状态：处于制定阶段（已下达制定指令）、提前实施或已获批。风险预防计划档案包含说明性文件、监管分区规划及监管条例，亦可附有助理解该计划的其他图文资料（如风险点位、相关议题等）。每份风险预防计划均通过一个多边形进行标识：若计划处于制定指令阶段，该多边形对应指令覆盖范围内的所有受影响市镇；若处于获批阶段，则对应受限区域的边界范围。此地理数据表可用于绘制本省内已生效的PPRT。N_DOCUMENT_PPRT地理数据表中收录的每份PPRT文件，均与采用"ddd[PREF|DDT|DDTM|DREAL]aaaannnn"格式的GASPAR代码相关联，其中AAAA与NNNN分别对应GASPAR系统中关联的风险预防计划流程的参考年份与序号：其一为在GASPAR应用中管理的编制（或修订）行政流程，其二为以元数据表N_PPRT_AAAANNNN（#0001496）描述的空间组成数值数据集集合。