Tarn-et-Garonne Flood Risk Prevention Plans (PPRN) for Municipalities

Risk Prevention Plans (PPR) are the French state's primary instrument for controlling development in areas exposed to major natural risks, established under the Act of 2 February 1995. The dataset, provided by the Bureau de Recherches Géologiques et Minières, is a WMS service mapping these plans for the Tarn sector communes in the Tarn-et-Garonne department. Each plan is linked to its administrative procedure via a unique GASPAR code in the format 'dd[PREF|DDT|DDTM|DREAL]AAAANNNN'.

Use Cases

• Map flood risk zones for municipal planning based on the regulatory zoning plans described.
• Analyze land use restrictions for construction and agriculture based on the PPR regulatory by-law.
• Identify municipalities under prescribed or approved risk prevention status based on the polygon envelopes.
• Link spatial flood data to administrative procedures using the unique GASPAR codes mentioned.

Strengths

• Data is explicitly linked to formal administrative procedures via unique GASPAR codes.
• Includes graphical documents for understanding hazards and issues, as mentioned in the description.
• Last updated on 2022-09-07, providing a recent snapshot.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and dataset size are unknown, which may limit suitability assessment.
• Data may reflect geographic bias inherent to the Tarn-et-Garonne department.

Provenance

Source

BUREAU DE RECHERCHES GÉOLOGIQUES ET MINIÈRES

Collection Method

Likely compiled and maintained by departmental directorates of the territories (DDT) as part of the PPR establishment process.

Freshness

Last updated 2022-09-07 00:00:00

Geography

Communes of the Tarn sector, Department of Tarn-et-Garonne, France.