Regulated area of the RPP flooding of the Auzon basin (63DDT19980006) approved on 09/05/2007 — Puy-de-Dôme

The area covered by the perimeter of the Preventive Natural Risk Prevention Plan for the Auzon Basin consists of three types of areas: — Dark red area: urban area exposed to a severe hazard — Dark blue zone: urban area exposed to medium hazard. This area is subdivided into sectors: • ZBFa sector, for urban centres exposed to medium risk • zbfb sector, for other urban areas exposed to medium risk — Light red zone: flood expansion areas to be preserved or non-urban areas exposed to severe or medium hazard. This area is subdivided into sectors: sector 1 for areas exposed to severe hazards; — sector 2 for areas exposed to medium hazard.奥宗盆地（Auzon Basin）预防性自然风险防范计划的边界覆盖区域共分为三类： — 深红色区域：面临严重灾害风险的城市建成区 — 深蓝色区域：面临中等灾害风险的城市建成区。该区域进一步细分为以下子区域： • ZBFa子区域：针对面临中等风险的城镇中心 • zbfb子区域：针对面临中等风险的其他城市建成区 — 浅红色区域：需予以保护的洪水蔓延区域，或面临严重/中等灾害风险的非城市区域。该区域进一步细分为以下子区域： • 子区域1：针对面临严重灾害风险的区域 • 子区域2：针对面临中等灾害风险的区域