Simple download service (Atom) of the dataset: PPRi Restricted Area of the Issoirian Alloy Valve (63DDT20110004) approved on 19-12-2013 — Puy-de-Dôme

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. This PPR defines 2 types of zones: — red zone corresponding to the urbanised areas located in strong hazard and non-urbanised areas, regardless of the level of hazard (fields of expansion of floods to be preserved). In these areas, only new constructions and developments directly linked to the management, maintenance and operation of space, subject to compliance with requirements to reduce vulnerability and very limited extensions of existing buildings. All urbanisation is prohibited. It is subdivided into 3 sub-areas: — UK: area of strong hazards in urban center — RD: upstream sector of the Constellium dam — R: other red zone — orange area corresponding to urbanised areas affected by medium or low hazard where urbanisation is allowed provided that the vulnerability is not aggravated针对自然风险预防规划（PPR），《环境法典》（Environmental Code）在条款L562-1中划定了两类区域：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。 依据危险等级的不同，每类区域均需遵循可强制执行的管控要求。本风险预防规划划定了两类区域： — 红区：指位于高危险区域内的建成区，以及无论危险等级如何的非建成区（即需予以保护的洪水漫溢范围）。此类区域内仅允许开展与空间管理、维护及运营直接相关的新建工程与开发活动，且需满足降低区域脆弱性的相关要求，同时仅可对既有建筑进行极为有限的扩建；所有城市化建设活动均被禁止。红区进一步划分为3个子区域： — UK：城市中心高危险区域 — RD：康斯特利厄姆（Constellium）大坝上游区段 — R：其余红区 — 橙区：指受中低危险影响的建成区，若未加剧区域脆弱性，则允许开展城市化建设活动。