INVESTIGATIONS INTO REDUCING RAILWAY NOISE BY SHIELDING METHODS ON THE DB AND OTHER EUROPEAN RAILWAYS

Partly as a result of environmental awareness of the general public, the DB and other European railways have been investigating the effects of anti-noise walls and cuttings on both new and improved railway lines. On the basis of noise measurements obtained, the DB has evolved a calculation procedure which allows an assured forecast of the effect of noise-shielding measures. The measurements carried out by the various European railways on noise- shielding walls have complemented each other rather well. The calculation procedure developed by the DB has shown good agreement between calculated and measured values. Where future anti-noise measures have to be effected on new or improved railway lines because of excessive emission levels, correct dimensioning of the shielding will present no problem. A comparison with noise-shielding measures for road traffic shows that for the same geometric situation the mean level of railway noise will be a few dB(A) better reduced. The reasons for this are the different frequency composition (the higher frequencies of rail traffic noise are more effectively reduced by shielding), and the fact that the noise emitted by rail vehicles is mainly radiated at right angles to the direction of travel (directional characteristics). In addition, this directional radiation means that--in comparison to the situation in road traffic-the shielding does not have to be extended so far beyond the perpendicular drawn from the place of emission to the shielding which means that the length of the shielding can be less.

  • Corporate Authors:

    Hestra Verlag

    Holzhofallee 33, Postfach 4244
    6100 Darmstadt 1,   Germany 
  • Authors:
    • Hoelzl, G
    • Hafner, P
  • Publication Date: 1980-9

Language

  • German

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00329960
  • Record Type: Publication
  • Source Agency: British Railways
  • Files: TRIS
  • Created Date: Mar 12 1981 12:00AM