Loiret Rail Network 24-Hour Noise Exposure Zones (A-Lden)

A 2022 dataset from the Bureau de Recherches Géologiques et Minières (BRGM) describing noise exposure zones along railways in the Loiret department of France. The data show exposure characteristics for day, evening, and night populations for rail lines with at least 30,000 trains per year. It is used for strategic noise mapping under the Environmental Code.

Use Cases

• Modeling population exposure to rail noise based on day-evening-night (Lden) indicators.
• Strategic noise mapping for compliance with Article R.572-5 of the French Environmental Code.
• Assessing environmental impact for railways with significant traffic (≥30,000 trains/year).
• Analyzing spatial noise zones for urban and transport planning in the Loiret region.

Strengths

• Data is specifically for strategic noise mapping as defined by French law.
• Covers railways with significant traffic (≥30,000 trains per year).
• Includes separate exposure metrics for day, evening, and night periods.

Limitations

• Description metadata is limited; actual data quality requires manual inspection after download.
• Last updated 2022-02-16 00:00:00; freshness should be verified.
• Column-level documentation is absent; field semantics must be inferred after download.

Provenance

Source

Bureau de Recherches Géologiques et Minières (BRGM)

Collection Method

Likely derived from noise modeling and traffic data for strategic noise mapping.

Time Range

Snapshot from 2022; temporal coverage of underlying data is unspecified.

Freshness

Last updated 2022-02-16 00:00:00

Geography

Loiret department rail network, France.