Risk Prevention Plans (RPPs) are the French State's key instrument for controlling development in areas at risk. The R111-3 plan from Nantes was approved on 21/01/1987 and includes spatial datasets delineating exposure zones and restricted areas. The data are informative, with authentic regulations held in paper documents by the prefecture.
Use Cases
- Mapping areas prohibited for construction based on 'red zone' delineations
- Analyzing development requirements for projects in 'blue zones' subject to adapted regulations
- Identifying areas indirectly exposed to risks but still subject to prohibitions or requirements
- Assessing the spatial scope of exposure to risks as defined by the plan
Strengths
- Plan is officially approved, providing a regulatory basis for land-use decisions
- Spatial datasets are organized into distinct sets for exposure zones and restricted areas
- Data originates from the authoritative Bureau de Recherches Géologiques et Minières
Limitations
- Description metadata is limited; actual data quality requires manual inspection after download
- Column-level documentation is absent; field semantics must be inferred after download
- Last updated 2021-05-06 00:00:00; freshness should be verified
Provenance
- Source
- Bureau de Recherches Géologiques et Minières
- Geography
- Nantes, France