Sobre Aena - Frequently asked questions
Sobre Aena
Acoustic isolation
Frequently asked questions about sound insulation
Strategic noise map (SNM)
What is this?
The noise footprint corresponding to the acoustic situation in a specific year, providing information on noise levels and the population exposed to them.
What are they used for?
To assess the noise from different means of transport in a uniform manner and according to comparable criteria, enabling local authorities to jointly assess all sources of noise with an impact on urban areas.
Acoustic easement
What is this?
It is the main tool for assessing and predicting the noise impact from airports on the current and future situation, leading to an action plan that defines improvement processes (including the Noise Abatement Plan).
What are they used for?
To make airport activity compatible with the various land uses, activities and buildings in the surrounding area.
Noise Abatement Plan (NAP)
What is this?
The noise footprint associated with the Environmental Impact Statements (EIS) and/or acoustic easements.
What are they used for?
To minimise the inconveniences caused by aircraft noise through sound-proofing actions that enable sustainable compliance with acoustic quality objectives inside homes and buildings.
What are the steps and requirements to enrol in the noise abatement plan?
- You must be located within the noise footprint associated with the corresponding airport.
- You must have a construction license issued prior to the environmental impact statement or Royal Decree that applies to you.
- The building must be used for residential purposes or other sensitive purposes, such as education, healthcare or culture, that require special protection from noise pollution.
- Noise level measurements must be taken inside the homes to demonstrate the need for soundproofing action to be undertaken for compliance with the noise quality objectives listed in Table B of Annex II of Spanish Royal Decree 1367/2007, of 19 October.
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Greenhouse gas emissions (Scope 1,2 y 3) (tCO2e)
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| 2019 | 2020 | 2021 | 2022 | 2023 | Reduction 2023 vs 2019 |
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| Emissions scope 1 | 22.770 | 17.113 | 16.793 | 17.805 | 14.309 | -37,16% |
| Emissions scope 2 (market-based) |
113.861 | 26.199 | 31.871 | 26.990 | 26.263 | -76,93% |
| Emissions scope 31 | 1.870.884 | 1.870.884 | 2.255.476 | 3.280.638 | 3.375.955 | -12,69% |
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Greenhouse gas emissions (Scope 1,2 y 3) (tCO2e)
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2019 22.770 2020 17.113 2021 16.793 2022 17.805 2023 14.309
Reduction -37,16% |
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2019 113.861 2020 26.199 2021 31.871 2022 26.990 2023 26.263
Reduction -76,93% |
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2019 1.870.884 2020 1.870.884 2021 2.255.476 2022 3.280.638 2023 3.375.955
Reduction -12,69% |
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What work is included under the noise abatement plan?
- The soundproofing of existing doors and windows in homes by installing better quality frames while maintaining the aesthetic conditions of the buildings and their integration with the surroundings.
- The actions to be taken will depend on the noise level detected in each home, which is generally defined by the value of the isophone curve for the nocturnal period (the most unfavourable).
- In exceptional cases, a situation may arise in which actions also need to be taken on the roof and façade.