Map Viewing Service (WMS) of the dataset: PPRN of La Boisse

For natural RPPs, the Environmental Code defines two categories of areas (L562-1): risk-prone areas and areas that are not directly exposed to risks but on which measures may be provided for avoid increasing the risk. Depending on the hazard level, each area is subject to a enforceable regulation. The regulations generally distinguish three types of zones: 1- “Building prohibited areas”, so-called “red zones”, when the level of D’aléa is strong and that the general rule is the prohibition on construction; 2- “areas” subject to requirements, referred to as ‘blue zones’, where the hazard level is average and that projects are subject to requirements adapted to the type of issue; 3- Areas not directly exposed to risks, but where constructions, works, development or agricultural, forestry, artisanal, commercial or industrials could aggravate risks or cause new, submitted prohibitions or prescriptions (cf. Article L562-1 of the Environmental Code). This last category applies only to natural RPPs.针对自然风险敏感区域（Natural Risk-Prone Areas，RPPs），《环境法典》（Environmental Code）于条款L562-1中将其划分为两类：一类为风险敏感区域，另一类为未直接暴露于风险之中，但可通过采取相关措施避免风险加剧的区域。依据危险等级差异，每类区域均需遵守强制性监管要求。该类监管规则通常将区域细分为三种类型：1. 禁建区（又称"红色区域"）：当危险等级较高时，通用规则为禁止一切建设活动；2. 受限建设区（又称"蓝色区域"）：危险等级为中等，建设项目需根据具体风险类型适配相应合规要求；3. 间接风险区域：未直接暴露于风险之中，但任何建设、工程、开发活动或农业、林业、手工业、商业及工业行为均可能加剧既有风险或引发新的风险，因此需遵守相应禁止性规定或合规要求（详见《环境法典》条款L562-1）。该第三类区域仅适用于自然风险敏感区域（RPPs）。