Noise equivalent level (day) railways
Description
The noise material has been compiled from reports commissioned by the Finnish Transport Infrastructure Agency and from materials commissioned by the municipalities subject to the obligation to investigate. The areas and municipalities subject to the survey in Finland are the Helsinki Metropolitan Area (Helsinki, Espoo, Vantaa and Kauniainen), as well as Turku, Tampere, Lahti and Oulu. The surveys shall be carried out for roads with an annual traffic volume of at least 3 million vehicles and for railways with an annual traffic volume of at least 30 000 trains. In addition, the data include the noise areas of the street network of the municipalities subject to the obligation to investigate, as well as other roads in terms of the road network. The road and rail noise surveys commissioned by the Finnish Transport Infrastructure Agency have used the National Land Survey's laser scanning data. In the case of municipalities, the datasets used have mainly been the spatial datasets of municipalities and possibly the datasets of the National Land Survey of Finland.
Noise calculation is based on the spread of noise in a 3D terrain model, which is modelled on noise sources, buildings, noise barriers and terrain shapes, as well as their acoustic properties. The noise emission of traffic noise sources is determined on the basis of traffic volumes, driving speeds and correction terms. Correction terms are used to specify the starting values in situations where the starting value assumption is incorrect (for example, a special road surface, a traffic light junction, an abnormal rail or rail condition effect, or a bridge).
The reports are based on the EU Environmental Directive (2002/49/EC) and the Environmental Protection Act (527/2014), which require cities with more than 100,000 inhabitants to draw up a noise survey and a noise abatement action plan every five years.
Noise data for 2017 and 2022 have been published in the Finnish Transport Infrastructure Agency's open services.
Resources
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https://www.avoindata.fi/data/dataset/3f5cd9ef-5dfa-46d2-88c2-bcec7d06da52/resource/79fcfbf3-ee7d-443b-a720-e066922bcb1b |
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0 |
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https://www.avoindata.fi/data/dataset/3f5cd9ef-5dfa-46d2-88c2-bcec7d06da52/resource/b12c6e1e-0b7b-4669-897f-b8232c6a310f |
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0 |
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https://www.avoindata.fi/data/dataset/3f5cd9ef-5dfa-46d2-88c2-bcec7d06da52/resource/23e9308b-5500-471a-b8f6-da4839a06fe0 |
Tags
- raideliikenne
- meluntorjunta
- avoindata.fi
- ei-inspire