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The Environmental Noise Directive requires, on a five yearly cycle, the Scottish Government to produce strategic noise maps. The Directive was transposed into Scottish legislation under the Environmental Noise (Scotland) Regulations 2006 and amended by the Environmental Noise (Scotland) Amendment Regulations 2018 following the United Kingdom\u2019s exit from the European Union.<\/span><\/p>

<\/p>

Strategic noise maps for the fourth round of mapping have been produced using the European Commission\u2019s common noise assessment methods (CNOSSOS-EU). This is a new method of producing strategic noise maps for the entirety of Scotland, meaning the previous three rounds are not comparable to this round. The analysis was completed using several in house, open source, and commercially available software tools, and was delivered by Noise Consultants Limited in collaboration with Mott MacDonald, Acustica and Stapelfeldt on behalf of the Scottish Ministers.<\/span><\/p>

<\/p>

The maps were created using specialised noise modelling software, which calculates the noise level on a 10m grid at a reception height of 4m above local ground level as required by the Environmental Noise Regulations. The software takes account of physical features such as buildings and the ground contours. The grid information is then used to create the series of noise contour bands, depicting an average noise level for an average day in the year. The data required for the calculations of noise levels have been determined by consultation with various organisations including Transport Scotland, SEPA, Network Rail, Airport Operators, Local Authorities, and others.<\/span><\/p>

<\/p>

For Round 4, the following noise sources were included:<\/span><\/p>

\u2022 Airports with more than 50,000 (fifty thousand) movements;<\/span><\/p>

\u2022 Airports with less than 50,000 (fifty thousand) movements but emit relevant noise levels into agglomerations;<\/span><\/p>

\u2022 Railways - both major (with more than 30,000 (thirty thousand) train passages a year) and non-major railways;<\/span><\/p>

\u2022 Roads - both major (with more than 3,000,000 (three million) vehicle passages per year) and non-major roads;<\/span><\/p>

\u2022 Industry within qualifying agglomerations (urban areas with populations in excess of 100,000 (one hundred thousand), i.e. Aberdeen, Dundee, Edinburgh, Falkirk and Glasgow).<\/span><\/p>

<\/p>

Results were produced for roads (both all sources and major roads only), rail (both all sources and major railways only) and industry using the following indicators:<\/span><\/p>

\u2022 Day-evening-night level (Lden) - the annual average noise level with separate weightings for the evening and night periods. Day, evening and night periods are defined as 07.00 to 19.00, 19.00 to 23.00 and 23.00 to 07.00 respectively;<\/span><\/p>

\u2022 Daytime level (Lday) - the annual average A-weighted long-term sound over the daytime period (07:00-19:00);<\/span><\/p>

\u2022 Evening level (Leve) \u2013 the annual average A-weighted long-term sound over the evening period (19:00-23:00);<\/span><\/p>

\u2022 Night level (Lnight) \u2013 the annual average A-weighted long-term sound over the night period (23:00-07:00);<\/span><\/p>

\u2022 6-hour night-time level (LAeq,6h) - the A-weighted equivalent continuous sound level over a 6-hour time period (24:00-06:00). It is the sound level of a steady state sound that has the same energy as a fluctuating sound over the same period;<\/span><\/p>

\u2022 16-hour daytime level (LAeq,16h) - the A-weighted equivalent continuous sound level over a 16-hour time period (07:00-23:00). It is the sound level of a steady state sound that has the same energy as a fluctuating sound over the same period;<\/span><\/p>

\u2022 18-hour daytime level (LAeq,18h) - the A-weighted equivalent continuous sound level over a 18-hour time period (06:00-24:00). It is the sound level of a steady state sound that has the same energy as a fluctuating sound over the same period.<\/span><\/p>

<\/p>

Consolidated results were also produced including outputs from each of the road, rail, industrial and airport noise grids. The consolidated maps are produced simply as a logarithmic sum of the separate source sound levels and are not subject to response or effects based corrections.<\/span><\/p><\/div>", "mapName": "Noise", "description": "The Environmental Noise Directive requires, on a five yearly cycle, the Scottish Government to produce strategic noise maps. The Directive was transposed into Scottish legislation under the Environmental Noise (Scotland) Regulations 2006 and amended by the Environmental Noise (Scotland) Amendment Regulations 2018 following the United Kingdom\u2019s exit from the European Union.Strategic noise maps for the fourth round of mapping have been produced using the European Commission\u2019s common noise assessment methods (CNOSSOS-EU). This is a new method of producing strategic noise maps for the entirety of Scotland, meaning the previous three rounds are not comparable to this round. The analysis was completed using several in house, open source, and commercially available software tools, and was delivered by Noise Consultants Limited in collaboration with Mott MacDonald, Acustica and Stapelfeldt on behalf of the Scottish Ministers.The maps were created using specialised noise modelling software, which calculates the noise level on a 10m grid at a reception height of 4m above local ground level as required by the Environmental Noise Regulations. The software takes account of physical features such as buildings and the ground contours. The grid information is then used to create the series of noise contour bands, depicting an average noise level for an average day in the year. The data required for the calculations of noise levels have been determined by consultation with various organisations including Transport Scotland, SEPA, Network Rail, Airport Operators, Local Authorities, and others.For Round 4, the following noise sources were included:\u2022 Airports with more than 50,000 (fifty thousand) movements;\u2022 Airports with less than 50,000 (fifty thousand) movements but emit relevant noise levels into agglomerations;\u2022 Railways - both major (with more than 30,000 (thirty thousand) train passages a year) and non-major railways;\u2022 Roads - both major (with more than 3,000,000 (three million) vehicle passages per year) and non-major roads;\u2022 Industry within qualifying agglomerations (urban areas with populations in excess of 100,000 (one hundred thousand), i.e. Aberdeen, Dundee, Edinburgh, Falkirk and Glasgow).Results were produced for roads (both all sources and major roads only), rail (both all sources and major railways only) and industry using the following indicators:\u2022 Day-evening-night level (Lden) - the annual average noise level with separate weightings for the evening and night periods. 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The Directive was transposed into Scottish legislation under the Environmental Noise (Scotland) Regulations 2006 and amended by the Environmental Noise (Scotland) Amendment Regulations 2018 following the United Kingdom\u2019s exit from the European Union.Strategic noise maps for the fourth round of mapping have been produced using the European Commission\u2019s common noise assessment methods (CNOSSOS-EU). This is a new method of producing strategic noise maps for the entirety of Scotland, meaning the previous three rounds are not comparable to this round. The analysis was completed using several in house, open source, and commercially available software tools, and was delivered by Noise Consultants Limited in collaboration with Mott MacDonald, Acustica and Stapelfeldt on behalf of the Scottish Ministers.The maps were created using specialised noise modelling software, which calculates the noise level on a 10m grid at a reception height of 4m above local ground level as required by the Environmental Noise Regulations. The software takes account of physical features such as buildings and the ground contours. The grid information is then used to create the series of noise contour bands, depicting an average noise level for an average day in the year. The data required for the calculations of noise levels have been determined by consultation with various organisations including Transport Scotland, SEPA, Network Rail, Airport Operators, Local Authorities, and others.For Round 4, the following noise sources were included:\u2022 Airports with more than 50,000 (fifty thousand) movements;\u2022 Airports with less than 50,000 (fifty thousand) movements but emit relevant noise levels into agglomerations;\u2022 Railways - both major (with more than 30,000 (thirty thousand) train passages a year) and non-major railways;\u2022 Roads - both major (with more than 3,000,000 (three million) vehicle passages per year) and non-major roads;\u2022 Industry within qualifying agglomerations (urban areas with populations in excess of 100,000 (one hundred thousand), i.e. Aberdeen, Dundee, Edinburgh, Falkirk and Glasgow).Results were produced for roads (both all sources and major roads only), rail (both all sources and major railways only) and industry using the following indicators:\u2022 Day-evening-night level (Lden) - the annual average noise level with separate weightings for the evening and night periods. 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