Map Viewing Service (WMS) of the dataset: Restricted areas of the natural risk prevention plan of the municipality of LISSAC

The regulated zoning of the Natural Hazard Prevention Plan (PPRN) is digitised in accordance with the national requirements of COVADIS.
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 hazard level, each area is subject to an enforceable settlement. The regulations generally distinguish three types of zones:
1- ‘Building prohibited areas’, known as ‘red areas’, where the hazard level is high and the general rule is the prohibition on construction;
2- ‘prescribed areas’, known as ‘blue zones’, where the hazard level is average and the projects are subject to requirements adapted to the type of issue;
3- areas not directly exposed to risks but where constructions, works, developments or farms, agricultural, forestry, craft, commercial or industrial could aggravate risks or cause new ones, subject to prohibitions or requirements (cf. Article L562-1 of the Environmental Code). The latter category applies only to natural RPPs.

本自然灾害预防规划（Natural Hazard Prevention Plan, PPRN）的法定区划已按照COVADIS的国家级相关要求完成数字化处理。针对自然类PPRN，《环境法典》（Environmental Code）第L562-1条将区划划分为两类：风险暴露区，以及虽未直接面临风险但可通过预先采取措施避免风险加剧的区域。依据灾害等级，每类区划均需遵循可强制执行的管控规则。相关法规通常将区划进一步划分为三类：1. 禁止建设区（又称“红区”）：该区域灾害等级较高，通用管控规则为严禁任何建设行为；2. 限制建设区（又称“蓝区”）：该区域灾害等级为中等，建设项目需遵循适配风险类型的专项管控要求；3. 间接风险影响区：此类区域虽未直接暴露于风险之中，但各类建设、工程、开发活动或农业、林业、手工业、商业及工业类经营场所可能加剧既有风险或引发新的风险，需遵守相关禁止性规定或管控要求（详见《环境法典》第L562-1条）。该类区划仅适用于自然类RPP规划。