Defra has published strategic noise map data that give a snapshot of the estimated noise from road and rail sources across England in 2021. The data was developed as part of implementing the Environmental Noise (England) Regulations 2006 (‘the regulations’).

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.

Data indicating the level of noise according to the strategic noise mapping of road sources across England. The day-evening-night level (Lden) is a noise indicator for overall annoyance based upon annual average A-weighted long-term sound over 24 hours with a 5 dB(A) penalty for evening noise (19:00-23:00) and a 10 dB(A) penalty for night-time noise (23:00-07:00). The 16-hour equivalent continuous level (LAeq,16h) is a noise indicator which describes the annual average steady noise level over the 16-hour daytime period (07:00 to 23:00) which contains the same sound energy as the actual fluctuating sound across the same period. The day level (Lday) is a daytime noise indicator based upon annual average A-weighted long-term sound over the daytime period (07:00-19:00) which contains the same sound energy as the actual fluctuating sound across the same period. The evening level (Leve) is an evening noise indicator based upon annual average A-weighted long-term sound over the evening period (19:00-23:00) which contains the same sound energy as the actual fluctuating sound across the same period. The night level (Lnight) is a night-time noise indicator based upon annual average A-weighted long-term sound over the night period (23:00-07:00) which contains the same sound energy as the actual fluctuating sound across the same period.

The data show the estimated number of people affected by noise from road traffic, railway and industrial sources, based on an annual average 24 hour period for the situation in 2011. The information arose from the strategic noise mapping undertaken to meet the requirements of Directive 2002/49/EC (the Environmental Noise Directive (END)) and the corresponding regulations. The information is given for each agglomeration covered by the END and for the major road and railway sources outside agglomerations as defined in the END. Other notes: • There is no requirement to map industrial sources outside agglomerations. • Not all agglomerations have industrial sources covered by the END that cause population to be exposed to noise levels in the ranges shown • The noise exposure ranges shown reflect the requirements of the END • The END is not prescriptive over exactly what noise sources have to be included in the strategic noise mapping. • For all agglomerations, the road noise mapping was based on Motorways and A roads only, using data compiled by the Department for Transport. • For all agglomerations, the railway noise mapping was based on the standard passenger and freight network only. • For industry, only those sites which met the definition of a Part A(1) activity as described in the Environmental Permitting (England and Wales) Regulations 2010 were included.

The data show the estimated number of people affected by noise from road traffic, railway and industrial sources, based on an annual average 24 hour period for the situation in 2011. The information arose from the strategic noise mapping undertaken to meet the requirements of Directive 2002/49/EC (the Environmental Noise Directive (END)) and the corresponding regulations.

The information is given for each agglomeration covered by the END and for the major road and railway sources outside agglomerations as defined in the END. Other notes:

• There is no requirement to map industrial sources outside agglomerations.

• Not all agglomerations have industrial sources covered by the END that cause population to be exposed to noise levels in the ranges shown

• The noise exposure ranges shown reflect the requirements of the END

• The END is not prescriptive over exactly what noise sources have to be included in the strategic noise mapping.

• For all agglomerations, the road noise mapping was based on Motorways and A roads only, using data compiled by the Department for Transport.

• For all agglomerations, the railway noise mapping was based on the standard passenger and freight network only.

• For industry, only those sites which met the definition of a Part A(1) activity as described in the Environmental Permitting (England and Wales) Regulations 2010 were included.

Areas which the Secretary of State considers to be urban (with a population greater than or equal to 100,000 people) where, under the Environmental Noise Directive (Round 3), Defra is required to undertake Strategic Noise Mapping. Attribution statement: © Crown Copyright

Data indicating the level of noise according to the strategic noise mapping of road sources within areas with a population of at least 100,000 people (agglomerations) and along major traffic routes. Lnight indicates night time annual average noise level results in dB, where night is defined as 2300 - 0700. Noise levels are modeled on a 10m grid at a receptor height of 4m above ground, polygons are then produced by merging neighboring cells within the following noise classes: 70.0+ dB, 65.0-69.9 dB, 60.0-64.9 dB, 55.0-59.9 dB, 50-54.9 dB, <49.9 dB This data is a product of the strategic noise mapping analysis undertaken in 2017 to meet the requirements of the Environmental Noise Directive (Directive 2002/49/EC) and the Environmental Noise (England) Regulations 2006 (as amended). Attribution statement:

Data indicating the level of noise according to the strategic noise mapping of road sources within areas with a population of at least 100,000 people (agglomerations) and along major traffic routes. Lden indicates a 24 hour annual average noise level with separate weightings for the evening and night periods. Noise levels are modeled on a 10m grid at a receptor height of 4m above ground, polygons are then produced by merging neighboring cells within the following noise classes: 75.0+ dB, 70.0-74.9 dB, 65.0-69.9 dB, 60.0-64.9 dB, 55.0-59.9 dB, <54.9 dB This data is a product of the strategic noise mapping analysis undertaken in 2012 to meet the requirements of the Environmental Noise Directive (Directive 2002/49/EC) and the Environmental Noise (England) Regulations 2006 (as amended). Attribution statement:

Data indicating the level of noise according to the strategic noise mapping of road sources within areas with a population of at least 100,000 people (agglomerations) and along major traffic routes. LAeq,16h indicates the annual average noise levels for the 16-hour period between 0700 – 2300. Noise levels are modeled on a 10m grid at a receptor height of 4m above ground, polygons are then produced by merging neighboring cells within the following noise classes: 75.0+dB, 70.0-74.9dB, 65.0-69.9dB, 60.0-64.9dB, 55.0-59.9dB, <54.9dB. This data is a product of the strategic noise mapping analysis undertaken in 2012 to meet the requirements of the Environmental Noise Directive (Directive 2002/49/EC) and the Environmental Noise (England) Regulations 2006 (as amended) Attribution statement:

This dataset maps noise pollution in London. Data is available for noise pollution from road and rail sources. The following shapefiles are available to download below: 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. For the full datasets that covers all of England, please see DEFRA's strategic noise mapping pages.

Octave band data indicating the level of noise according to the strategic noise mapping of road sources across England.

PLEASE NOTE ALL DATA IS UNWEIGHTED

The day-evening-night level (Lden) is a noise indicator for overall annoyance based upon annual average A-weighted long-term sound over 24 hours with a 5 dB(A) penalty for evening noise (19:00-23:00) and a 10 dB(A) penalty for night-time noise (23:00-07:00). Unweighted octave band levels are provided. The 16-hour equivalent continuous level (Leq,16h) is a noise indicator which describes the annual average steady noise level over the 16-hour daytime period (07:00 to 23:00) which contains the same sound energy as the actual fluctuating sound across the same period. Unweighted octave band levels are provided. The day level (Lday) is a daytime noise indicator based upon annual average A-weighted long-term sound over the daytime period (07:00-19:00) which contains the same sound energy as the actual fluctuating sound across the same period. Unweighted octave band levels are provided. The evening level (Leve) is an evening noise indicator based upon annual average A-weighted long-term sound over the evening period (19:00-23:00) which contains the same sound energy as the actual fluctuating sound across the same period. Unweighted octave band levels are provided. The night level (Lnight) is a night-time noise indicator based upon annual average A-weighted long-term sound over the night period (23:00-07:00) which contains the same sound energy as the actual fluctuating sound across the same period. Unweighted octave band levels are provided. Noise levels are modelled on a 10m grid at a receptor height of 4m above ground, with a lower threshold cutoff of 35dB for the Lnight metric, and 40dB for all other metrics. Data is available for all road traffic sources.

The provided octave band levels are for 63Hz, 125Hz, 250Hz, 500Hz, 1kHz, 2kHz, 4kHz and 8kHz for each metric listed.

This data is a product of the strategic noise mapping analysis undertaken in 2022 to meet the requirements of the Environmental Noise (England) Regulations 2006 (as amended). Attribution statement: © Department for Environment, Food & Rural Affairs copyright and/or database right 2024. All rights reserved.

Data indicating the level of noise according to the strategic noise mapping of rail sources within areas with a population of at least 100,000 people (agglomerations) and along Network Rail and HS1 traffic routes. Lnight indicates night time annual average noise level results in dB, where night is defined as 2300 - 0700. Noise levels are modeled on a 10m grid at a receptor height of 4m above ground, polygons are then produced by merging neighboring cells within the following noise classes: 70.0+ dB, 65.0-69.9 dB, 60.0-64.9 dB, 55.0-59.9 dB, 50-54.9 dB, <49.9 dB This data is a product of the strategic noise mapping analysis undertaken in 2012 to meet the requirements of the Environmental Noise Directive (Directive 2002/49/EC) and the Environmental Noise (England) Regulations 2006 (as amended). Attribution statement:

Data indicating the level of noise according to the strategic noise mapping of rail sources within areas with a population of at least 100,000 people (agglomerations) and along Network Rail and HS1 traffic routes. LAeq,16h indicates the annual average noise levels for the 16-hour period between 0700 – 2300. Noise levels are modeled on a 10m grid at a receptor height of 4m above ground, polygons are then produced by merging neighboring cells within the following noise classes: 75.0+dB, 70.0-74.9dB, 65.0-69.9dB, 60.0-64.9dB, 55.0-59.9dB, <54.9dB. This data is a product of the strategic noise mapping analysis undertaken in 2017 to meet the requirements of the Environmental Noise Directive (Directive 2002/49/EC) and the Environmental Noise (England) Regulations 2006 (as amended) Attribution statement:

Data indicating the level of noise according to the strategic noise mapping of rail sources within areas with a population of at least 100,000 people (agglomerations) and along Network Rail and HS1 traffic routes. Lnight indicates night time annual average noise level results in dB, where night is defined as 2300 - 0700. Noise levels are modeled on a 10m grid at a receptor height of 4m above ground, polygons are then produced by merging neighboring cells within the following noise classes: 70.0+ dB, 65.0-69.9 dB, 60.0-64.9 dB, 55.0-59.9 dB, 50-54.9 dB, <49.9 dB This data is a product of the strategic noise mapping analysis undertaken in 2012 to meet the requirements of the Environmental Noise Directive (Directive 2002/49/EC) and the Environmental Noise (England) Regulations 2006 (as amended). Attribution statement:

The following shapefiles are available to download below: 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. For the full datasets that covers all of England, please see DEFRA's strategic noise mapping pages.

The file contains information about the estimated number of people in England exposed to road traffic, railway and industrial noise. These data come from the strategic noise mapping undertaken in 2017 to meet the requirements of the Environmental Noise Directive (Directive 2002/49/EC) (END) and the Environmental Noise (England) Regulations 2006 (as amended) (Regs).

Data indicating the level of noise according to the strategic noise mapping of airport sources across England. • The day-evening-night level (Lden) is a noise indicator for overall annoyance based upon annual average A-weighted long-term sound over 24 hours with a 5 dB(A) penalty for evening noise (19:00-23:00) and a 10 dB(A) penalty for night-time noise (23:00-07:00). • The 16-hour equivalent continuous level (LAeq,16h) is a noise indicator which describes the annual average steady noise level over the 16-hour daytime period (07:00 to 23:00) which contains the same sound energy as the actual fluctuating sound across the same period. • The day level (Lday) is a daytime noise indicator based upon annual average A-weighted long-term sound over the daytime period (07:00-19:00) which contains the same sound energy as the actual fluctuating sound across the same period. • The evening level (Leve) is an evening noise indicator based upon annual average A-weighted long-term sound over the evening period (19:00-23:00) which contains the same sound energy as the actual fluctuating sound across the same period. • The night level (Lnight) is a night-time noise indicator based upon annual average A-weighted long-term sound over the night period (23:00-07:00) which contains the same sound energy as the actual fluctuating sound across the same period. Noise levels are modelled on a 10m grid at a receptor height of 4m above ground. The lowest threshold cutoff is 35dB for the Lnight metric, and 40dB for all other metrics. However, modelling is completed by the competent authority for each airport and therefore actual thresholds vary depending on the data provided to Defra. Data is available for all airport sources required under the Regulations. This data is a product of the strategic noise mapping analysis undertaken in 2022 to meet the requirements of the Environmental Noise (England) Regulations 2006 (as amended). Attribution statement: © Department for Environment, Food & Rural Affairs copyright and/or database right 2024. All rights reserved.

Data indicating the level of noise according to the strategic noise mapping of all road sources within areas with a population of at least 100,000 people (agglomerations). Lden indicates a 24 hour annual average noise level with separate weightings for the evening and night periods. This data is a product of the strategic noise mapping analysis undertaken to meet the requirements of the Environmental Noise Directive (Directive 2002/49/EC).

Data indicating the level of noise according to the strategic noise mapping of industrial sources within areas with a population of at least 250,000 people (agglomerations). Lnight indicates night time annual average noise level results in dB, where night is defined as 2300 - 0700. This data is a product of the strategic noise mapping analysis undertaken to meet the requirements of the Environmental Noise Directive (Directive 2002/49/EC).

Noise maps showing areas that are relatively louder or quieter, measured in decibels (dB), for all road traffic noise in Scotland (both major and non-major sources) in 2021. The data represents the daytime levels (Lday) - the annual average A-weighted long-term sound over the daytime period (07:00-19:00).

Scottish Ministers commissioned strategic noise mapping analysis to meet the requirements of the Environmental Noise Directive (Directive 2002/49/EC), which is legally implemented in Scotland thorough the Environmental Noise (Scotland) Regulations 2006, as amended by the Environmental Noise (Scotland) Amendment Regulations 2018.

Noise maps are used to identify areas where noise levels are high and, by linking population data, estimate how many people are affected. This aids in the production of noise action plans to manage noise and reduce noise levels where appropriate.

Dataset Name: END Noise Data Round 2 - 2012Data Owner: DAERAContact: Air and Environmental Quality Unit amy.holmes@daera-ni.gov.ukSource URL: https://gis.daera-ni.gov.uk/arcgis/apps/MapSeries/index.html?appid=0bf4f42018224494b071b5dcd0ce4e56Uploaded to SPACE Hub: 12/06/23Update Frequency: Every 5 yearsScale Threshold: N/AProjection : Irish GridFormat: Esri Feature Layer (Hosted) Vector PolygonNotes: This data is a product of the strategic noise mapping analysis undertaken by DAERA Northern Ireland in 2012 to meet the requirements of the EU Environmental Noise Directive (Directive 2002/49/EC) and Environmental Noise Regulations (Northern Ireland) 2006. NOISE SOURCESAGGLOMERATION ROAD (agg-road) Data indicating the level of noise according to the strategic noise mapping of major road sources within areas with a population of at least 100,000 people (Belfast Metropolitan Urban Area agglomeration).AGGLOMERATION RAIL (agg_rail) Data indicating the level of noise according to the strategic noise mapping of major rail sources withinINDUSTRY (agg_ind) Data indicating the level of noise according to the strategic noise mapping of all Part A industrial activities as defined in Schedule 1 of the Pollution Prevention and Control Regulations (Northern Ireland) 2003 (as amended) and all ports within the Belfast Metropolitan Urban Area (BMUA) agglomeration.AGGLOMERATION AIRPORT (BCA) Data indicating the level of noise according to the strategic noise mapping of airport sources within areas with a population of at least 100,000 people (Belfast Metropolitan Urban Area agglomeration). In Northern Ireland, the agglomeration airport is George Best Belfast City Airport.CONSOLIDATED (con) Data indicating the level of noise according to the strategic noise mapping of all noise sources within the Belfast Metropolitan Urban Area (BMUA) agglomeration.MAJOR AIRPORT (BIA) Data indicating the level of noise according to the strategic noise mapping of airport sources withmore than 50,000 air traffic movements per year. In Northern Ireland, the major airport isBelfast International Airport (BIA).MAJOR RAIL (mrail) Data indicating the level of noise according to the strategic noise mapping along NI Translink routes with more than 30,000 train passages per year.MAJOR ROAD (mroad) Data indicating the level of noise according to the strategic noise mapping along major traffic routes withmore than 3,000,000 vehicle passages per year. NOISE INDICATORS Lden (lden) The LAeq over the period 0000-2400, but with the evening values (1900-2300) weighted by the addition of 5 dB(A), and the night values (2300-0700) weighted by the addition of 10dB(A)Lday (lday) The LAeq over the period 0700-1900, local time (for strategic noise mapping this is an annual average)Levening (leve) The LAeq over the period 1900-2300, local time (for strategic noise mapping this is an annual average)Lnight (lngt) The LAeq over the period 2300-0700, local time (for strategic noise mapping this is an annual average)LAeq,6h (l6h) The LAeq over the period 2400-0600, local time (for strategic noise mapping this is an annual average)LAeq,16h (l16h) The LAeq over the period 0700-2300, local time (for strategic noise mapping this is an annual average)LAeq,18h (l18h) The LAeq over the period 0600-2400, local time (for strategic noise mapping this is an annual average)-------------------------------------------------------------------------------------------For informations on the noise data and modelling methods used, please refer to the DAERA Northern Ireland website:https://www.daera-ni.gov.uk/services/noise-mapsContact details:Amy Holmes (amy.holmes@daera-ni.gov.uk)Air and Environmental Quality Unit - Regulatory and Natural Resources Policy DivisionDepartment of Agriculture, Environment and Rural Affairs (DAERA NI)