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Alemania noise mapping example11/5/2022 ![]() ![]() The complex task of geo-data preparation is not possible by hand and can only be performed with database-supported, highly-scalable and automated dataflow processes with integrated quality control and in combination with high-performance computers. These must be reconciled and verified against one another so that in the end the noise map can be calculated. This data not only comes from different sources, it comes in different formats, levels of quality and spatial layouts. ![]() “On the one hand there is data for the railway infrastructure such as railway lines, stations, noise protection walls and German rail timetables, on the other hand, there is also data on buildings, terrain and landscape models, area usage information and data on residents from the books of various authorities such as the Federal Agency for Cartography and Geodesy, the Federal Statistics Office, the Federal Office of Civil Protection and Disaster Assistance as well as the Federal States”. “The particular challenge with this noise calculation lay in the sheer unimaginable size and heterogeneity of the raw data set that had to be edited and prepared for the noise calculation”, says Disy project leader Markus Beck of the large-scale project that he has had responsibility for, on behalf of the EBA, since November 2015. Heterogeneous input data requires complex data management The current mapping thereby covers an area of over 50,000 square kilometres. The calculation incorporates some 16,500 kilometres of main railway lines and 70 urban areas. The EBA has now completed the third round of noise mapping for all urban areas with more than 100,000 residents and respectively for main lines with over 30,000 trains per year. The Eisenbahn-Bundesamt (EBA) (German Federal Railway Authority) is thus required to prepare noise maps for German railway lines every 5 years. The European Union therefore provides various instruments in the EU environmental noise regulations to reduce this. The results of this nationwide noise mapping are the basis for noise action planning and are available to the public as of now.Įconomic growth and rising prosperity are closely linked with growing passenger and freight traffic, and hence, increasing noise pollution. In addition to the actual noise calculations, this large-scale project includes a very complex data management system to check, clean, and homogenize huge data sets as a basis for the noise propagation calculations. EU noise mapping based on complex data managementĬommissioned by the German Federal Railway Authority, and under the direction of Disy Informationssysteme GmbH, the consortium of firms Disy, Pöyry and SoundPLAN have completed the EU environmental noise mapping of the main German railway lines. ![]()
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