Tests carried out since May near the mouth of Kibita tunnel on Japanese National Railways' new Sanyo line have shown that ceramic wall panels erected at the trackside can reduce noise levels by between 13 and 15 dB(A). Further information may be obtained from NGK Insulators Limited, 20 Mori Building, Nishishinbashi 2-chome, Minatoku, Tokyo, Japan.

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  • Corporate Authors:

    IPC Transport Press, Limited

    Dorset House, Stamford Street
    London SE1 9LU,   England 
  • Publication Date: 1973-9

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Filing Info

  • Accession Number: 00050351
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jan 11 1974 12:00AM