Map Viewing Service (WMS) of the dataset: Regulated areas of the Flood Risk Prevention Plans (PPRI) of the Seine-et-Marne department

Flood Risk Prevention Plans are the main flood risk prevention tool. Their objectives are to characterise flood risk and regulate the development of urbanisation in risk areas to reduce the vulnerability of people and property. The regulatory documents are approved after consultation with the municipalities and residents and the issuance of the prefectural decree. The regulations distinguish three types of zones: _ “red areas” where the hazard level is high and the general rule is the prohibition on construction; _ areas subject to so-called “blue zones” where the hazard level is average and the projects are subject to requirements adapted to the type of issue; _ areas not directly exposed to risks but in which constructions, works, developments or farms, agricultural, forestry, craftsmanship, comercial or industrial holdings 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. PPRI is a utility bondage (SUP PM1).防洪风险规划（Flood Risk Prevention Plans）是主流的防洪风险防控工具，其目标在于明确洪水风险特征，并规范风险区域内的城市化开发活动，以降低人员与财产的风险脆弱性。 该监管文件需经与市政当局及居民协商，并由省长政令发布后方可获批。该规划将区域划分为三类： - “红区”：风险等级为高，通用规则为禁止建设； - 即所谓“蓝区”，该区域风险等级为中等，相关项目需遵循适配问题类型的合规要求； - 未直接暴露于洪水风险的区域，但该区域内的建筑、工程、开发项目或农场、农林、手工业、商业或工业业态可能加剧既有风险或引发新的风险，需遵守相关禁令或合规要求（参见《环境法典》第L562-1条）。该类区域仅适用于自然类防洪风险规划（RPPs）。 PPRI属于公共役权（SUP PM1）。