Simple download service (Atom) of the dataset: Regulatory zoning of the Marne River Flood Risk Prevention Plan — Épernay Sector — CAECPC

For natural PPRs, the Environmental Code defines two categories of zones (L562-1): risk-exposed areas and areas that are not directly exposed to risks but where measures can be foreseen to avoid exacerbating the risk. Depending on the level of hazard and the issues, each area is subject to an enforceable regulation that sets out, in a clear and operational manner, the regulatory measures that apply to each of the restricted areas. The Regulation generally distinguishes five types of zones: 1. “Building prohibited areas”, referred to as “red zone”, depending on the level of hazard in an area with little or no construction, or in an agricultural or natural area, then the general rule is the prohibition on construction; 2. “areas subject to requirements”, referred to as “magenta zone”, “medium blue zone” or “light blue zone”, depending on the level of hazard in an urbanised area, then the projects are subject to requirements adapted to the type of issue; 3. “white areas” not defined in the Regulation and for which the RPIP does not apply, as they are not subject to hazard. The identification of these homogeneous areas results in the development of a mapping of the regulatory zoning of the PPRi. The hazard, the stakes, which made it possible to construct this regulatory Zonage, as well as the reference ratings are located under the no. gaspar 51DDT20170001 Spatial resolution: 1/10 000 Genealogy: The boundaries of a restricted area are shown on the graphical documents of the RPP. Regulatory limits are generally set on natural phenomena, which do not follow cadastral or administrative boundaries. A RPP determines the boundaries of the different restricted areas based on the calculated right-of-way of the site’s hazardous events. Some RPPs may sometimes contain regulations associated with linear or point configurations (cavitates, runoff axis, etc.). Linear and point graphic primitives are to be used in these cases respectively.依据《环境法典》第L562-1条，自然型风险预防规划（PPRs）将区域划分为两类：风险暴露区，以及虽未直接面临风险但需预先采取防控措施以避免风险加剧的区域。 依据危险等级与具体问题类型，每类区域均需遵循一项可强制执行的监管规范，该规范以清晰且可落地的方式明确了适用于各受限区域的监管要求。该监管规范通常将区划分为五类： 1. "禁建区"（亦称"红区"）：针对开发程度极低或无开发的区域、农业区域或自然区域，依据其危险等级，通用规则为禁止一切建设活动； 2. "合规管控区"（亦称"品红区""中蓝区"或"浅蓝区"）：针对已城市化区域，依据其危险等级，所有建设项目需遵循适配具体问题类型的管控要求； 3. "空白区域"：此类区域未被本监管规范纳入定义范畴，且不受危险影响，因此不适用风险预防与改进规划（RPIP）的相关要求。 通过对上述同质区域的划定，可生成风险预防规划的监管区划地图。 支撑本监管区划制定的危险等级、影响权重以及参考评级，均可通过档案编号51DDT20170001查询获取。 空间分辨率：1:10000 数据溯源： 受限区域的边界在风险预防规划（RPP）的图形文档中予以标注。监管边界通常基于自然现象划定，并不依附于地籍或行政边界。风险预防规划依据场地危险事件的计算通行范围，确定各类受限区域的边界。部分风险预防规划可能包含与线性或点型配置（如空腔、径流轴等）相关的监管要求，此类场景下需分别使用线性与点型图形基元进行标注。