Dataset Direct Download Service (WFS): 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.针对自然风险预防规划（PPRs），《环境法典》（L562-1条款）划定了两类区域：风险暴露区域，以及虽未直接暴露于风险但可采取措施规避风险加剧的区域。 依据危险等级与相关问题的差异，每类区域均需遵守强制性监管条例，该条例以清晰且可实操的方式明确了适用于各受限区域的监管措施。该条例通常将区域划分为五类： 1. 建筑禁建区，又称“红区”：若某区域开发程度极低或无开发活动，或为农业/自然区域且存在对应危险等级，则通用规则为禁止建设； 2. 受监管要求约束区域，又称“品红区”“中蓝区”或“浅蓝区”：若城市化区域存在对应危险等级，则相关项目需遵守适配问题类型的监管要求； 3. 白色区域：本条例未对其作出定义，且因不受风险影响，故不适用风险预防与改进计划（RPIP）相关规则。 对这些均质区域的识别，可形成PPRi监管分区的制图成果。 支撑该监管分区划定的危险等级、相关影响权重，以及参考评级，均可通过档案编号gaspar 51DDT20170001查询获取。 空间分辨率：1/10000 数据谱系： 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，并不遵循地籍或行政边界。RPP通过计算场地危险事件的影响范围来确定不同受限区域的边界。部分RPP有时会包含与线性或点状配置（如空洞、径流轴等）相关的监管规则，此类场景下需分别使用线性与点状图形图元。