Road Noise Lden: Strategic Noise Mapping for England

Strategic noise mapping for England models 24-hour annual average road noise (Lden) on a 10-meter grid at a 4-meter receptor height. The data covers major traffic routes and urban areas with populations over 100,000, classifying noise into six bands from below 54.9 dB to over 75.0 dB. This geospatial dataset is produced to meet the requirements of the European Environmental Noise Directive.

Use Cases

• Assessing population exposure to traffic noise based on noise class polygons.
• Informing urban planning and development decisions using modeled noise levels on a 10m grid.
• Evaluating compliance with the Environmental Noise Directive for major roads and agglomerations.
• Modeling health impacts from long-term noise exposure using the Lden 24-hour weighted average.

Strengths

• Data is modeled on a detailed 10-meter spatial grid, suggesting high granularity.
• Covers all major English traffic routes and urban areas with populations over 100,000.
• Produced to meet a specific regulatory standard (the Environmental Noise Directive).

Limitations

• Metadata is incomplete: specific column names, row counts, file size, and license details are unknown.
• There is a conflict in the source data year: descriptions reference analyses from both 2012 and 2017.
• The 'last updated' metadata field (2026) appears to be a future date, indicating potential system errors.

Provenance

Source

Department for Environment, Food and Rural Affairs (UK Government)

Collection Method

Modeled strategic noise mapping analysis for road sources.

Time Range

Analysis years: 2012 and 2017.

Freshness

The analysis years referenced are 2012 and 2017, though platform metadata lists a 'last updated' date of 2026-06-29.

Geography

England, specifically major traffic routes and urban agglomerations with populations of at least 100,000.