Map Viewing Service (WMS) of the dataset: Perimeter of the PPRMT of Saint Viance 2009 — Corrèze

N_PERIMETRE_PPRN_20070006_S_019
Perimeter of the PPRMT of Saint Viance 2009 — Corrèze

Plan for the Prevention of Natural Risks of Field Movements (PPRMT) in the northwest sector of the commune of Saint-Viance (in Corrèze)

Natural PPRs are established in accordance with the provisions of Article L. 562-1 of the Environmental Code. The regulatory mapping translates into a geographical demarcation of the territory concerned by the risk. This delimitation defines areas in which specific regulations apply. These by-laws are valid as easement. As such, depending on the intensity of the hazard, they regulate the use of the land or its use by demarcating areas where new constructions and installations are prohibited in order not to aggravate the risk, and areas where constructions and installations may be authorised subject to compliance with requirements.

The PPRMT on the northwest sector of the commune of Saint-Viance was approved on 3 November 2009. After several disturbances related to soil instability, the hazards were analysed according to the geological formations in the presence, hydrogeology, and morphology. Depending on the intensity of the hazard and the present challenges, three areas have been defined: a medium hazard zone, classified as a blue zone (built subject to compliance); a strong hazard area with stakes, classified as an urbanable orange zone only for individual housing and the open-air hotel industry subject to compliance with requirements and a strong hazard area with no stakes classified as an inconstructible area.

N_PERIMETRE_PPRN_20070006_S_019
圣维昂斯（Saint Viance）2009年坡面运动自然风险防治规划（PPRMT）边界——科雷兹省

科雷兹省圣维昂斯市镇西北部区域坡面运动自然风险防治规划（PPRMT）

自然风险防治规划（PPR）的制定须严格遵循《环境法典》第L.562-1条的相关规定。该监管测绘成果实质为受风险影响地域的地理边界划定，此边界明确了需适用特定监管要求的区域范围。此类地方监管细则以地役权形式生效，据此结合灾害强度差异，该规划通过划定两类区域规范土地利用行为：一类为禁止新建建筑与设施以避免加剧风险的区域，另一类为在满足相关要求的前提下可获批建设与安装设施的区域。

圣维昂斯市镇西北部区域的坡面运动自然风险防治规划（PPRMT）于2009年11月3日正式获批。在经历多次土体失稳相关的扰动事件后，规划编制团队结合现存地质构造、水文地质条件与地形地貌对灾害开展了系统性分析。结合灾害强度与当前面临的实际挑战，本次规划共划定三类区域：其一为中等风险区，划为蓝区（仅可在符合相关要求的前提下开展建设活动）；其二为带管控要求的高风险区，划为可开发橙色区，仅允许建设个人住宅与露天酒店业态且须严格符合相关规定；其三为无管控要求的高风险区，划为绝对禁止建设区域。