Map Viewing Service (WMS) of the dataset: PPRN hazard zone flooding by overflow of the Charente river of the commune of Courcoury

Area exposed to one or more hazards represented on the hazard maps used for risk analysis of the RPP.
Hazard maps are the result of the study of hazards whose objective is to assess the intensity of each hazard at any point in the study area. The evaluation method is specific to each hazard type. It leads to the delimitation of a set of areas on the study perimeter constituting a zoning graduated according to the level of the hazard. The allocation of a hazard level at a given point in the territory takes into account the probability of occurrence of the dangerous phenomenon and its degree of intensity.
For multi-random PPRNs, each zone is usually identified on the hazard maps by a code for each hazard to which it is exposed.

All hazard areas represented on the hazard maps are included. Areas protected by protective structures must be represented (possibly in a specific way) as they are always considered subject to hazard (case of breakage or inadequacy of the structure).
Hazard zones can be described as developed data to the extent that they result from a synthesis using multiple sources of calculated, modelled or observed hazard data. These source data are not concerned by this class of objects but by another standard dealing with the knowledge of hazards.
Some areas within the study area are considered “no or insignificant hazard zones”. These are the areas where the hazard has been studied and is nil. These areas are not included in the object class and do not have to be represented as hazard zones. However, in the case of natural RPPs, regulatory zoning may classify certain areas not exposed to hazard as prescribing areas (see definition of the PPR class).

本类对象指用于RPP风险分析的 hazard图（hazard map）上标注的、受一种或多种危险源（hazard）影响的区域。
hazard图（hazard map）是危险源研究的成果，该类研究旨在评估研究区域内任意点位处每种危险源的强度。评估方法因危险源类型而异，其会在研究范围内划定一系列区域，形成按危险源等级分级的分区方案。对区域内特定点位的危险源等级进行赋值时，需综合考虑该危险现象的发生概率及其强度等级。
针对多随机PPRN（PPRN）对象，通常会在hazard图上通过对应其受影响的每种危险源的编码来标识每个分区。
所有在hazard图上标注的危险源区域均需纳入本类对象。受防护结构保护的区域也必须（可采用特定方式）进行标注，因为即便设有防护结构，此类区域仍可能因结构破损或功能失效而面临危险源威胁。
危险源分区可视为经整合加工的数据集，其依托多来源的计算、建模或观测得到的危险源数据合成而来。本类对象不涵盖这些源数据，相关源数据由另一项针对危险源认知的标准进行规范。
研究区域内的部分区域被视为"无危险源或危险源可忽略区域"，即经研究确认无危险源的区域。此类区域不纳入本类对象，也无需作为危险源分区进行标注。不过对于天然RPP对象，监管分区可能会将未受危险源影响的区域划定为规定区域（详见PPR类（PPR class）的定义）。