A proposal for improved source model for predicting railway noise in Sweden

The current noise prediction model used in Sweden for rail traffic noise, NMT96, was finalised in 1996. Since then nearly 20 years passed. At European level, advanced noise prediction methods have been developed based on state-of-the-art scientific, technical and practical knowledge about environment noise assessment. Such examples can be e.g. TWINS for railway noise, the Harmonoise-Imagine methods for road, railway, aircraft and industry noise, and Nord 2000 Road for road noise in Nordic countries. Moreover, for strategic noise mapping over European member states, it has recently been decided that the European common noise assessment method, CNOSSOS-EU, is mandatory to be used. To follow these developments in fighting environmental noise, the Swedish Transport Administration (Trafikverket) requires to update the prediction models for road and rail traffic noise as well as to elaborate noise emission data for the extended noise source models. This pilot study aims at proposing an improved source model for railway noise, with railway track standard respected. Explicitly, rail roughness, track type, and noise measures on a track should be taken as input parameters in the source model. The traditional Nordic method NMT96 and the following one Nord 2000 Rail are first reviewed in Chapter 2. In Chapter 3, the focus is put on discussing CNOSSOS-EU source model for railway noise, which is based on and differs only a little from the advanced Harmonoise-Imagine source model. This discussion serves as the starting point to propose an improved source model for railway noise, which is described in Chapter 4. The important practical issue, how to apply rail grinding technique to reduce rolling noise, is also discussed in Chapter 3. Finally, the report is ended by Chapter 5 wherein two issues are discussed: to collect source data and to verify the source model.

• Record URL:
  http://fudinfo.trafikverket.se/fudinfoexternwebb/Pages/PublikationVisa.aspx?PublikationId=3014
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/02845172
• Corporate Authors:

  SP Technical Research Institute of Sweden

  Borås,   Sweden 
• Authors:
  • Zhang, Xuetao
  • JONASSON, HANS
• Publication Date: 2014

Language

• English

Media Info

• Pagination: 34
• Serial:
  • SP Report
  • Issue Number: 2014:60
  • Publisher: SP Technical Research Institute of Sweden
  • ISSN: 0284-5172

Subject/Index Terms

• TRT Terms: Calculation; Forecasting; Mathematical models; Methodology; Noise; Railroad tracks; Railroad traffic
• ITRD Terms: 6464: Calculation; 132: Estimation; 6473: Mathematical model; 9102: Method; 2492: Noise; 132: Prediction; 771: Rail traffic; 1062: Railway track
• Subject Areas: Environment; Railroads; I15: Environment;

Filing Info

• Accession Number: 01664451
• Record Type: Publication
• Source Agency: Swedish National Road and Transport Research Institute (VTI)
• Files: ITRD, VTI
• Created Date: Mar 28 2018 10:24AM