PREDICTION AND MITIGATION OF NOISE FROM SHINKANSEN TUNNEL PORTALS

This paper describes a model to help better understand what contributes to the noise measured near tunnel portals on the Shinkansen train lines. There has yet to be a comprehensive study of tunnel portal noise, which is a combination of ordinary wayside noise and noise radiating from the tunnel portal. Also, no mitigation system has been proposed. There is a prediction method for road tunnel noise, and this paper applies it to Shinkansen train noise. Higher sound barriers near tunnel portals and the installation of sound-absorbing materials on tunnel walls are proposed. It is found that the model for road tunnel noise can be modified and successfully used for train tunnel noise. The model shows that barriers outside the tunnel portal are likely to be more effective than sound-proofing the inside of the tunnel.

  • Availability:
  • Corporate Authors:

    Railway Technical Research Institute

    Transport Information Technology Division
    Tokyo 185-0034,   Japan 
  • Authors:
    • Nagakura, K
  • Publication Date: 2005-2

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00988245
  • Record Type: Publication
  • Source Agency: UC Berkeley Transportation Library
  • Files: BTRIS, TRIS
  • Created Date: Apr 1 2005 12:00AM