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Predecessor
Volume 23, Issue 1
Displaying 1-11 of 11 articles from this issue
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Kunio Nakamura, Toru Hirose1999 Volume 23 Issue 1 Pages 3-5
Published: February 01, 1999
Released on J-STAGE: October 06, 2009
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Tatsumi Kannon1999 Volume 23 Issue 1 Pages 6-9
Published: February 01, 1999
Released on J-STAGE: October 06, 2009
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Shigehisa Fujita1999 Volume 23 Issue 1 Pages 10-13
Published: February 01, 1999
Released on J-STAGE: October 06, 2009
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Sonoko Kuwano1999 Volume 23 Issue 1 Pages 14-17
Published: February 01, 1999
Released on J-STAGE: October 06, 2009
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Fumitoshi Okiyama1999 Volume 23 Issue 1 Pages 18-23
Published: February 01, 1999
Released on J-STAGE: October 06, 2009
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Sadaki Kodera1999 Volume 23 Issue 1 Pages 24-27
Published: February 01, 1999
Released on J-STAGE: October 06, 2009
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Kenichi Morishita, Haruhiko Iwai, Yoshitaka Tada, Masato Sasaki1999 Volume 23 Issue 1 Pages 28-30
Published: February 01, 1999
Released on J-STAGE: October 06, 2009
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Hisao Tatsumi1999 Volume 23 Issue 1 Pages 31-33
Published: February 01, 1999
Released on J-STAGE: October 06, 2009
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Nobuyoshi Hakamaya1999 Volume 23 Issue 1 Pages 34-37
Published: February 01, 1999
Released on J-STAGE: October 06, 2009
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Masaki Yura1999 Volume 23 Issue 1 Pages 38-40
Published: February 01, 1999
Released on J-STAGE: October 06, 2009
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Rie Aoki, Katsumi Uesaka, Hirofumi Ohnishi, Syungo Ishiwata1999 Volume 23 Issue 1 Pages 41-45
Published: February 01, 1999
Released on J-STAGE: October 06, 2009
JOURNAL FREE ACCESSIn order to predict road traffic noise for environmental impact assessments, future sound power levels of the vehicles must be estimated. In this paper, the formulas of future sound power levels that were estimated based on the past regulation of accelerated running noise are compared with the ones based on sound power level data measured in 1996. As a result, the validity of the formulas has been partly verified. Further, we have estimated the future sound power levels with our proposed estimating method based on the regulation of steady running noise and with the usual one based on the regulation of accelerated running noise, reflecting the latest regulation for motor vehicles noise. Consequently, the future sound power levels calculated by both the methods are smaller than those obtained from the data measured above by 0.8-1.5dB.View full abstractDownload PDF (693K)
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