| Presentation | 2000/5/11 Effect of Tunnel on Noise Propagation in the Vicinity of Entrance Yasuaki OKADA, Koichi YOSHIHISA, Kazuhiro KUNO, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | It has been known that noise levels nearby tunnel entrance of a road are often higher than the ones for open roads site. In this paper, a model to explain the mechanism of this effect caused by tunnel exists has been proposed. We have also examined a unit pattern of noise level around tunnel due to a moving source. As a result, it has been found that noise level increase in the vicinity of tunnel entrance can be given by tunnel dimension and mean sound absorption coefficient of wall surface inside tunnel. An area influenced by effect of tunnel was calculated and shown around entrance. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | sound propagation inside tunnel / radiated noise from tunnel entrance / semi-diffuse sound field / road traffic noise / effect of tunnel / insertion gaiin |
| Paper # | EA2000-8 |
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| Conference Information | |
| Committee | EA |
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| Conference Date | 2000/5/11(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
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| Paper Information | |
| Registration To | Engineering Acoustics (EA) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Effect of Tunnel on Noise Propagation in the Vicinity of Entrance |
| Sub Title (in English) | |
| Keyword(1) | sound propagation inside tunnel |
| Keyword(2) | radiated noise from tunnel entrance |
| Keyword(3) | semi-diffuse sound field |
| Keyword(4) | road traffic noise |
| Keyword(5) | effect of tunnel |
| Keyword(6) | insertion gaiin |
| 1st Author's Name | Yasuaki OKADA |
| 1st Author's Affiliation | Japan Weather Association() |
| 2nd Author's Name | Koichi YOSHIHISA |
| 2nd Author's Affiliation | Faculty of Science and Technology, Meijo Univ. |
| 3rd Author's Name | Kazuhiro KUNO |
| 3rd Author's Affiliation | Faculty of Engineering, Mie Univ. |
| Date | 2000/5/11 |
| Paper # | EA2000-8 |
| Volume (vol) | vol.100 |
| Number (no) | 53 |
| Page | pp.pp.- |
| #Pages | 10 |
| Date of Issue | |