Road Traffic Noise Attenuation by Vegetation Belts at Some Sites in the Tarai Region of India

• Autorzy: Tyagi V. , Kumar K. , Jain V. K.
• Języki publikacji: EN

Abstrakty

EN

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).

Słowa kluczowe

EN

noise; attenuation; traffic; frequency; vegetation belt; Tarai

• Wydawca: Instytut Podstawowych Problemów Techniki PAN ; Komitet Akustyki PAN ; Polskie Towarzystwo Akustyczne
• Czasopismo: Archives of Acoustics
• Rocznik: 2013
• Tom: Vol. 38, No. 3
• Strony: 389--395
• Opis fizyczny: Bibliogr. 21 poz., tab., wykr.

Twórcy

autor

Tyagi V.

• Urban Management Masters Programme, Ethiopian Civil Service College P.Box No. 5648, Addis Ababa, Ethiopia

autor

Kumar K.

• School of Environmental Sciences, Jawaharlal Nehru University New Delhi, India

autor

Jain V. K.

• School of Environmental Sciences, Jawaharlal Nehru University New Delhi, India

Bibliografia

• 1. Attenborough K. (1988), Review of Ground Effects on Outdoor Sound Propagation from Continuous Broadband Sources, Applied Acoustics, 24, 289-319.
• 2. Aylor D. (1972), Noise Reduction by Vegetation and Ground, Journal of the Acoustical Society of America, 51, 1, 197-205.
• 3. Aylor D. (1972), Sound Propagation in Relation to Leaf Density, Leaf Width, and Breadth of Canopy, Journal of the Acoustical Society of America, 1, 1, 411-414.
• 4. Bullen F., Fricke F. (1982), Sound Propagation through Vegetation, Journal of Sound and Vibration, 80, 1, 11-23.
• 5. Carlson D.E., Mc Daniel O.H., Reethof G. (1977), Noise control by forest, In: Internoise international conference on noise control engineering, Zurich, Switzerland, B567-86.
• 6. Cook D.I., Van Haverbeke D.F. (1971), Trees and Shrubs for Noise Abatement, The forest service, US Department of Agriculture, Research Bulletin, 246.
• 7. Fang C.F., Ling D.L. (2003), Investigation of the noise reduction provided by tree belts, Landscape Ur- ban Plan, 63, 187-95.
• 8. Garg N., Sharma O., Mohanan V., Maji S. (2012), Passive noise control measures for traffic noise abatement in Delhi, India, Journal of Scientific and Indus- trial Research, 71, 226-234.
• 9. Huddart L. (1990), The use of vegetation for traffic noise screening, Department of transport TRRL report ISSN 0266-5247, Transport and Road Research Laboratory, Crowthorne.
• 10. ISO 9613-1 (1992), Acoustic - Attenuation of Sound during Propagation Outdoors, Part 1: Methods of calculation of the Attenuation of Sound by Atmospheric Absorption, International Organization for Standardization.
• 11. ISO 9613-2 (1992), Acoustic - Attenuation of Sound during Propagation Outdoors, Part 2: Methods of calculation of the Attenuation of Sound by Atmospheric Absorption, International Organization for Standardization.
• 12. Kumar K., Jain V.K., Rao D.N. (1998), A predictive model of noise for Delhi, J. Acoust. Soc. Am., 103, 3, 1677-79.
• 13. Linskens H.F., Martens M.J.M., Hendriksen H.J.G.M., Reostenberg-Sinnige A.M., Brouwers W.A.J.M., Van Der Staak A.L.H.C., Strik-Jansen A.M.J. (1976), The Acoustic Climate of Plant Communities, Oecologia (Berl.), 23, 165-177.
• 14. Martens M.J.M. (1980), Foliage as a Low Pass Filter: Experiments with model Forests in a Anechoic Chamber, Journal of Acoustical Society of America, 67, 1, 66-72.
• 15. Maleki K., Hosseini S.M., Nasiri P. (2010), The Effect of Pure and Mixed Plantations of Robinia Pseudoacasia and Pinus Eldarica on Traffic Noise Decrease, International Journal of Environmental Sciences, 1, 213-224.
• 16. Martens M.J.M. (1981), Noise Abatement in Plant Monocultures and Plant Community, Applied Acoustics, 14, 167-189.
• 17. Pal A.K., Kumar V., Saxena N.C. (2000), Noise attenuation by green belts, Journal of Sound and Vibration, 234, 1, 149-165.
• 18. Pathak V., Tripathi B.D., Mishra V.K. (2008), Dynamics of traffic noise in a tropical city Varanasi and its abatement through vegetation, Environmental Monitoring Assessment, 146, 67-75.
• 19. Price M.A., Attenborough K., Heap N. (1988), Sound Attenuation through Trees - Measurements and Models, Journal of Acoustical Society of America, 84, 5, 1836-1844.
• 20. Tyagi V., Kumar K., Jain V.K. (2006), A study of the spectral characteristics of traffic noise attenuation by vegetation belts in Delhi, Applied Acoustics, 67, 926-935.
• 21. Yamada S., Watanabe T., Nakamura S., Yokoyama H., Takeoka S. (1977), Noise reduction by vegetation, Internoise 77 - International Conference on Noise Control Engineering, Zurich, Switzerland, B599-B606.