Hazard Zones of the Natural Risk Prevention Plan (PPRN) of Saint-Martin-de-Seignanx – Landes (40)

Area exposed to one or more hazards shown on the hazard map used for risk analysis of the Risk Prevention Plan (RCP). The hazard map is 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 assessment method is specific to each type of hazard. It leads to the delimitation of a set of zones on the perimeter of study constituting a graduated zoning according to the level of the hazard. The assignment 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 spotted on the hazard map by a code for each hazard to which it is exposed. All hazard areas shown on the hazard map are included. Areas protected by protective structures must be represented (possibly specifically) because they are always considered to be subject to hazard (case of rupture or insufficiency of the structure). Hazard zones may be classified as compiled data to the extent that they result from a synthesis using several sources of hazard data calculated, modelled or observed. These source data are not concerned by this class of objects but by another standard dealing with knowledge of hazards. Some areas of the study perimeter are considered “zero or insignificant hazard zones”. These are the areas where the hazard has been studied and is zero. 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 PPRs, regulatory zoning may classify certain areas not exposed to hazard as a prescription zone (see definition of ZonePPR class). Area exposed to one or more hazards shown on the hazard map used for risk analysis of the Risk Prevention Plan (RCP). The hazard map is 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 assessment method is specific to each type of hazard.It leads to the delimitation of a set of zones on the perimeter of study constituting a graduated zoning according to the level of the hazard. The assignment 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 spotted on the hazard map by a code for each hazard to which it is exposed. All hazard areas shown on the hazard map are included.Areas protected by protective structures must be represented (possibly specifically) because they are always considered to be subject to hazard (case of rupture or insufficiency of the structure). Hazard zones may be classified as compiled data to the extent that they result from a synthesis using several sources of hazard data calculated, modelled or observed. These source data are not concerned by this class of objects but by another standard dealing with knowledge of hazards. Some areas of the study perimeter are considered “zero or insignificant hazard zones”. These are the areas where the hazard has been studied and is zero. 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 PPRs, regulatory zoning may classify certain areas not exposed to hazard as a prescription zone (see definition of ZonePPR class).本数据集对应风险预防计划（Risk Prevention Plan, RCP）风险分析所用灾害地图中，暴露于一种或多种灾害的区域。灾害地图为灾害研究的成果，其研究目标为评估研究区域内任意点位的各类灾害强度。针对不同灾害类型，需采用专属评估方法，据此在研究范围内划定若干区域，形成基于灾害等级的分级分区。对某一特定领土点位进行灾害等级赋值时，需综合考量危险现象的发生概率及其强度等级。针对多随机PPRN（multi-random PPRNs），每个区域通常会在灾害地图上通过代码标注其所暴露的各类灾害。 所有灾害地图中展示的灾害区域均需纳入本数据集。受防护结构保护的区域也必须予以标注（可采用专属标注方式），因为即便设有防护结构，该区域仍可能面临灾害风险（例如结构发生破裂或失效的情形）。若灾害区域由多份经计算、建模或观测得到的灾害数据合成而来，则可将其归类为综合数据集。此类源数据不属于本对象类别的范畴，而应由另一项涉及灾害认知的标准规范进行处理。研究范围内的部分区域被视为"零灾害或微灾害区域"，即经研究确认灾害风险为零的区域。此类区域不属于本对象类别的范畴，无需作为灾害区域进行标注。但对于自然PPR（Natural PPRs）而言，监管分区可将部分未暴露于灾害的区域划定为管控区域（详见ZonePPR类别的定义）。 本数据集对应风险预防计划（Risk Prevention Plan, RCP）风险分析所用灾害地图中，暴露于一种或多种灾害的区域。灾害地图为灾害研究的成果，其研究目标为评估研究区域内任意点位的各类灾害强度。针对不同灾害类型，需采用专属评估方法，据此在研究范围内划定若干区域，形成基于灾害等级的分级分区。对某一特定领土点位进行灾害等级赋值时，需综合考量危险现象的发生概率及其强度等级。针对多随机PPRN（multi-random PPRNs），每个区域通常会在灾害地图上通过代码标注其所暴露的各类灾害。 所有灾害地图中展示的灾害区域均需纳入本数据集。受防护结构保护的区域也必须予以标注（可采用专属标注方式），因为即便设有防护结构，该区域仍可能面临灾害风险（例如结构发生破裂或失效的情形）。若灾害区域由多份经计算、建模或观测得到的灾害数据合成而来，则可将其归类为综合数据集。此类源数据不属于本对象类别的范畴，而应由另一项涉及灾害认知的标准规范进行处理。研究范围内的部分区域被视为"零灾害或微灾害区域"，即经研究确认灾害风险为零的区域。此类区域不属于本对象类别的范畴，无需作为灾害区域进行标注。但对于自然PPR（Natural PPRs）而言，监管分区可将部分未暴露于灾害的区域划定为管控区域（详见ZonePPR类别的定义）。