Road Traffic Noise Attenuation by Vegetation Belts at Some Sites in the Tarai Region of India
Noise measurements have been carried out at eleven different sites located in three prominent cities of the Tarai region of India to evaluate the effectiveness of vegetation belts in reducing traffic noise along the roadsides. Attenuation per doubling of distance has been computed for each site and...
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Institute of Fundamental Technological Research Polish Academy of Sciences
2013-09-01
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| Series: | Archives of Acoustics |
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| Online Access: | https://acoustics.ippt.pan.pl/index.php/aa/article/view/58 |
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| author | Vikrant TYAGI Krishan KUMAR V. JAIN |
| author_facet | Vikrant TYAGI Krishan KUMAR V. JAIN |
| author_sort | Vikrant TYAGI |
| collection | DOAJ |
| description | Noise measurements have been carried out at eleven different sites located in three prominent cities of the Tarai region of India to evaluate the effectiveness of vegetation belts in reducing traffic noise along the roadsides. Attenuation per doubling of distance has been computed for each site and excess attenuation at different 1/3 octave frequencies has been estimated. The average excess attenuation is found to be approximately 15 dB over the low frequencies (200 Hz to 500 Hz) and between 15 dB to 20 dB over the high frequencies (8 kHz to 12.5 kHz). Over the critical middle frequencies (1–4 kHz), the average excess attenuation (between 10–15 dB) though not as high, is still significant, with a number of sites showing an excess attenuation of 15 dB or more at 1 kHz. The results indicate that sufficiently dense vegetation belts along the roadsides may prove as effective noise barriers and significant attenuation may be achieved over the critical middle frequencies (1–4 kHz). |
| format | Article |
| id | doaj-art-225ec2b24cf9478f8c2cf4a563aa6d21 |
| institution | Kabale University |
| issn | 0137-5075 2300-262X |
| language | English |
| publishDate | 2013-09-01 |
| publisher | Institute of Fundamental Technological Research Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Acoustics |
| spelling | doaj-art-225ec2b24cf9478f8c2cf4a563aa6d212025-08-20T03:50:48ZengInstitute of Fundamental Technological Research Polish Academy of SciencesArchives of Acoustics0137-50752300-262X2013-09-01383Road Traffic Noise Attenuation by Vegetation Belts at Some Sites in the Tarai Region of IndiaVikrant TYAGIKrishan KUMARV. JAINNoise measurements have been carried out at eleven different sites located in three prominent cities of the Tarai region of India to evaluate the effectiveness of vegetation belts in reducing traffic noise along the roadsides. Attenuation per doubling of distance has been computed for each site and excess attenuation at different 1/3 octave frequencies has been estimated. The average excess attenuation is found to be approximately 15 dB over the low frequencies (200 Hz to 500 Hz) and between 15 dB to 20 dB over the high frequencies (8 kHz to 12.5 kHz). Over the critical middle frequencies (1–4 kHz), the average excess attenuation (between 10–15 dB) though not as high, is still significant, with a number of sites showing an excess attenuation of 15 dB or more at 1 kHz. The results indicate that sufficiently dense vegetation belts along the roadsides may prove as effective noise barriers and significant attenuation may be achieved over the critical middle frequencies (1–4 kHz).https://acoustics.ippt.pan.pl/index.php/aa/article/view/58noiseattenuationtrafficfrequencyvegetation beltTarai |
| spellingShingle | Vikrant TYAGI Krishan KUMAR V. JAIN Road Traffic Noise Attenuation by Vegetation Belts at Some Sites in the Tarai Region of India Archives of Acoustics noise attenuation traffic frequency vegetation belt Tarai |
| title | Road Traffic Noise Attenuation by Vegetation Belts at Some Sites in the Tarai Region of India |
| title_full | Road Traffic Noise Attenuation by Vegetation Belts at Some Sites in the Tarai Region of India |
| title_fullStr | Road Traffic Noise Attenuation by Vegetation Belts at Some Sites in the Tarai Region of India |
| title_full_unstemmed | Road Traffic Noise Attenuation by Vegetation Belts at Some Sites in the Tarai Region of India |
| title_short | Road Traffic Noise Attenuation by Vegetation Belts at Some Sites in the Tarai Region of India |
| title_sort | road traffic noise attenuation by vegetation belts at some sites in the tarai region of india |
| topic | noise attenuation traffic frequency vegetation belt Tarai |
| url | https://acoustics.ippt.pan.pl/index.php/aa/article/view/58 |
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