PREDICTION OF ROAD TRAFFIC NOISE AROUND TUNNEL MOUTH

Prediction of road traffic noise in the vicinity of a road tunnel mouth has been one of the most difficult problems. The build-up noise in the tunnel radiates towards outside the mouth. A practical calculation model for this noise radiation is developed in this paper which is based upon a sound energy balance inside the tunnel. Two imaginary sources are assumed. One is a point source that represents a direct sound from a vehicle in the tunnel. The other is a surface source that represents residual sound with multiple reflection between the walls of the tunnel. Results of sound pressure level (LAeq) measurements at a highway tunnel show good agreement with an accuracy of less than 2dB between the calculated and the measured. It is shown that this model is also applicable to road traffic noise around a tunnel with a noise control of absorptive treatment on the walls. For the covering abstract see ITRD E107776.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/2951561946
• Corporate Authors:

  SOCIETE FRANCAISE D'ACOUSTIQUE

  23 AVENUE BRUNETIERE
  PARIS,   France  75017
• Authors:
  • Takagi, K
  • Miyake, T
  • Yamamoto, K
  • TACHIBANA, H
• Conference:
  • INTERNOISE 2000. PROCEEDINGS OF THE 29TH INTERNATIONAL CONGRESS ON NOISE CONTROL ENGINEERING, HELD 27-31 AUGUST 2000, NICE, FRANCE. VOLUME 5
• Publication Date: 2000

Language

• English

Media Info

• Features: References;
• Pagination: p. 3099-104

Subject/Index Terms

• TRT Terms: Calculation; Forecasting; Measurement; Noise; Traffic; Tunnels
• ITRD Terms: 6464: Calculation; 132: Forecast; 6136: Measurement; 2492: Noise; 755: Traffic; 3374: Tunnel
• Subject Areas: Bridges and other structures; Environment; Operations and Traffic Management;

Filing Info

• Accession Number: 00807901
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• ISBN: 2-9515619-4-6
• Files: ITRD
• Created Date: Apr 4 2001 12:00AM