STATISTICAL INVESTIGATION OF THE NOISE SITUATION IN MARITIME OPERATIONS

Sound levels measured by the See-Berufsgenossenschaft on board German sea-going ships have been used for statistical investigations of noise levels in ships. In the machinery spaces of "new ships" (built between 1975 and 1979) the Mean Sound Level (Median value L) of all measured data was determined to be 104 dB(A). This exceeded that on board "old ships" (built before 1974) by 2 dB(A). The mean sound level (L) in new ships with high-speed engines (rpm > 300) was found to be reduced by 4 dB(A) and with slow-speed engines (rpm 300) to be increased by 6 dB(A) in relation to those in old ships having the corresponding engines. In the living quarters of new ships L of all measured sound levels was reduced by 3 dB(A) in comparison with that in old ships. Further, the mean sound levels in the living quarters of new ships driven by slow as well as fast speed engines were found to be less by 3 and 4 dB(A) respectively than those on board old ships with the corresponding engines.

  • Supplemental Notes:
    • Schiff u. Hafen, 35 (1983), p.34 (No.2) (4 pp., 11 ref., 4 tab., 2 graphs)
  • Authors:
    • Majumder, D
  • Publication Date: 1983

Language

  • German

Subject/Index Terms

  • Subject Areas: Marine Transportation;

Filing Info

  • Accession Number: 00684487
  • Record Type: Publication
  • Source Agency: British Maritime Technology
  • Files: TRIS
  • Created Date: Aug 14 1995 12:00AM