Simple download service (Atom) of the dataset: Multi-hazard PPR of risk types treated in the Marquenterre Baie de Somme PPRN

Hazard synthesis used to describe multi-random areas in the case of multi-hazard PPRN. This data is complementary to the hazard zone of the PPRN of Marquenterre Baie de Somme. Plans for the prevention of natural hazards (PPRN) 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 control development in areas exposed to a major risk. PPRNs 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 PPRN 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 PPRN 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 PPRNs on the department. Each PPRN document existing in this geographical table is linked with its GASPAR code of “ddd[PREF|DDT|DDT|DREAL]aaaannnn” (AAAA and NNNN correspond to the reference year and serial number of the associated PPRN procedure in GASPAR): 1. its administrative procedure for drafting (or revision) managed in the GASPAR application, on the one hand, 2. its set of constituent geographical data described in the metadata sheet N_PPRN_AAAANNNN, on the other hand.本灾害综合数据集用于描述多灾种自然风险防治计划（Plan de Prévention des Risques Naturels，PPRN）框架下的多随机影响区域。本数据集可补充马克南泰尔-索姆湾（Marquenterre Baie de Somme）地区PPRN的灾害区划相关内容。 自然风险防治计划（PPRN）依据1995年2月2日《加强环境保护法案》制定，是国家层面风险防治工作的核心工具。其宗旨为管控重大风险暴露区域的开发活动。PPRN由法国省长批准，通常由省领土事务总局（Direction Départementale des Territoires，DDT）牵头编制。此类计划通过针对新建或既有建筑的建设禁令、管控要求（含建设规范、减灾工程、使用限制或农业生产规范等），对土地利用与开发行为进行规制。PPRN可分为待编制（核准前）、先期实施与已核准三种状态。 PPRN档案包含说明文档、规制区划图与规制文本。其他有助于理解该计划的辅助图文资料（如灾害分布图、相关议题材料等）可作为附件追加归档。 每个PPRN均通过多边形空间要素进行标识：若处于待核准状态，该多边形对应指令覆盖范围内涉及的全部市镇；若处于已核准状态，则对应受限区域的外包边界。本地理数据表可用于绘制省内已生效PPRN的空间分布图。 本地理数据表收录的每份PPRN文件，均关联其专属GASPAR编码，格式为"ddd[PREF|DDT|DDT|DREAL]aaaannnn"（其中"AAAA"与"NNNN"分别对应GASPAR系统中关联PPRN流程的参考年份与流程序号），具体关联两项内容：其一为在GASPAR应用中管理的PPRN编制（或修订）行政流程；其二为元数据表单"N_PPRN_AAAANNNN"中描述的全套组成地理数据。