Map Viewing Service (WMS) of the dataset: Noise zones (Type A map, LD index) of the A50, n

Strategic noise maps for the A50 national road network, created under the European Directive 2002/49/EC. The dataset, published by the Bureau de Recherches Géologiques et Minières, contains noise zones (Type A maps) representing areas exposed to more than 55 dB(A) in Lden and 50 dB(A) in Ln indicators. Maps are reviewed at least every five years, with this version last updated on January 10, 2020.

Use Cases

• Modeling noise exposure for public health studies based on Lden and Ln noise indicators.
• Assessing compliance with EU environmental noise regulations for major road infrastructure.
• Planning urban development and noise mitigation measures around the A50 road network.
• Visualizing noise pollution isophone curves for environmental impact reporting.

Strengths

• Based on standardized EU noise assessment indicators (Lden and Ln).
• Maps are defined to be reviewed and revised at least every five years.
• Specific noise thresholds are defined: 55 dB(A) for Lden and 50 dB(A) for Ln.

Limitations

• Last updated 2020-01-10 00:00:00; freshness should be verified.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and specific data scale are unknown, which may limit suitability assessment.

Provenance

Source

Bureau de Recherches Géologiques et Minières

Collection Method

Developed as strategic noise maps (CBS) under the authority of the prefect of the department, following European Directive 2002/49/EC.

Time Range

Maps are reviewed at least every five years; data reflects status as of the last update in 2020.

Freshness

Last updated 2020-01-10 00:00:00

Geography

Covers the A50 national road network, likely within the jurisdiction of the relevant EU member state.