Transparency data

Strategic noise mapping (2017)

Explaining which noise sources were included in the 2017 (Round 3) strategic noise mapping dataset.

• From: Department for Environment, Food & Rural Affairs
• Published: 2 July 2019
• Last updated: 21 December 2022 — See all updates

Documents

Strategic noise mapping: explaining which noise sources were included in the 2017 noise maps

PDF, 1.71 MB, 12 pages

Details

Defra has published strategic noise map data that give a snapshot of the estimated noise from major road and rail sources across England in 2017. The data was developed as part of implementing the Environmental Noise Directive.

This publication explains which noise sources were included in 2017 strategic noise mapping process. It provides summary maps for major road and rail sources and provides links to the detailed Geographic Information Systems (GIS) noise datasets.

This data will help transport authorities to better identify and prioritise relevant local action on noise. It will also be useful for planners, academics and others working to assess noise and its impacts.

Noise mapping Geographic Information Systems (GIS) datasets

Rail noise

• Laeq 16h: indicates the annual average noise levels for the 16-hour period between 0700 – 2300

• Lden: indicates a 24 hour annual average noise level with separate weightings for the evening and night periods

• Lnight: indicates night time annual average noise level results in dB, where night is defined as 2300 - 0700

Road Noise

• Laeq 16h: indicates the annual average noise levels for the 16-hour period between 0700 – 2300

• Lden: indicates a 24 hour annual average noise level with separate weightings for the evening and night periods.

• Lnight: indicates night time annual average noise level results in dB, where night is defined as 2300 - 0700

Other

• Agglomerations: urban areas Defra is required to undertake strategic noise mapping
• Noise action planning important areas: provide a framework for the local management of the Important Areas.

Noise exposure data

We’ve published data which shows the estimated number of people affected by noise from road traffic, railway and industrial sources.

• Noise exposure data

Published 2 July 2019
Last updated 21 December 2022 + show all updates

1. 21 December 2022

   Added a link to the noise information survey. Defra wants to improve the way it tells you about noise levels where you live. Take part in the survey to tell them what information on noise you need. The survey is anonymous and voluntary. It should take 5 to 10 minutes to complete.

2. 2 July 2019

   First published.