Rail Noise - LAeq 16h: Strategic Noise Mapping for England

Rail Noise - LAeq 16h - England Round 2 is a geospatial dataset from the UK Department for Environment, Food and Rural Affairs. It contains modeled annual average rail noise levels for the 16-hour day period (0700–2300) across major English population centers and rail corridors. The data is derived from strategic noise mapping conducted to meet the Environmental Noise Directive, with noise levels classified into polygons representing specific decibel ranges.

Use Cases

• Assessing population exposure to rail noise based on modeled LAeq,16h levels within agglomerations.
• Planning noise mitigation measures along Network Rail and HS1 traffic routes using the 10m grid-based noise class polygons.
• Evaluating compliance with the Environmental Noise Directive (2002/49/EC) for strategic noise mapping in England.
• Modeling the spatial distribution of noise levels (75.0+ dB to <54.9 dB) for environmental impact studies.

Strengths

• Data is modeled on a detailed 10m grid at a 4m receptor height, suggesting a high spatial resolution for noise assessment.
• Derived from a formal strategic noise mapping process mandated by the Environmental Noise Directive, indicating a standardized methodology.
• Covers all major English agglomerations (population >=100,000) and key national rail infrastructure (Network Rail, HS1).

Limitations

• Sources conflict on the analysis year, citing both 2012 and 2017, creating uncertainty about the data's temporal reference.
• Critical metadata is missing, including column names, row counts, file size, specific license, and author details.
• The data is modeled, not measured, and its freshness is unclear despite a recent platform update date in 2026.

Provenance

Source

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

Collection Method

Strategic noise mapping analysis, with noise levels modeled on a 10m grid and aggregated into classified polygons.

Time Range

Analysis conducted in either 2012 or 2017 (conflict in sources).

Freshness

Platform metadata indicates a last updated date of 2026-06-29, but the underlying analysis is from either 2012 or 2017.

Geography

England, specifically areas with a population of at least 100,000 (agglomerations) and along Network Rail and HS1 traffic routes.