Effect of Plantings on Radiation of Highway Noise

Reethof, G.

doi:10.1080/00022470.1973.10469763

Cited by 18 publications

(11 citation statements)

References 2 publications

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“…For this, it may be suggested for the new areas to be planned near the arteries that a green band of at least 100 m width with pine trees must be left along the arteries and suitable plantation techniques and plant species must be chosen considering noise reduction effects of the plants in addition to their ecological and aesthetical features (Haverbeke 1971;Erlbeck et al 1974;Reethof 1973;Booth 1990). For the noise control, additional planning (e.g.…”

Section: Discussionmentioning

confidence: 99%

Determination of roadside noise reduction effectiveness of Pinus sylvestris L. and Populus nigra L. in Erzurum, Turkey

Özer

Irmak

Yılmaz

2007

Environ Monit Assess

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This study was carried out to determine the noise-reduction effectiveness of the Pinus sylvestris L. and Populus nigra L. trees along the E-80 State highway in Erzurum-Turkey. Noise values were taken at three measurement points; open (without trees and taken as control), the urban forests of pure P. sylvestris L. and P. nigra L. areas, and at four different distances; 0 (near the noise source), 25, 50 and 75 m from the noise source. At the distance of 25 m from the source, the noise value was 78.5 dB(A) in the control area, which was reduced 75.5 dB(A) and 69.2 dB(A) in the P. nigra L. and P. sylvestris L. areas, with the reduction rates of 24.7 and 31% compared to the control, respectively. This value was 69.6, 67.1 and 64.3 at the distance of 50 m and 64.9, 62.5 and 59.2 at 75 m for the naked, P. nigra L. and P. sylvestris L. areas, respectively. From the results of the study, it was suggested that for the noise pollution from the traffic flow on the roads, in especially the big cities, noise reduction zones with suitable width and plant species should be formed along the main arteries of the cities.

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Section: Discussionmentioning

confidence: 99%

Determination of roadside noise reduction effectiveness of Pinus sylvestris L. and Populus nigra L. in Erzurum, Turkey

Özer

Irmak

Yılmaz

2007

Environ Monit Assess

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“…Tree belt reduce noise through various means viz. absorption by leaves, dispersion, reflection and diffraction by stems and spherical divergence by canopy (Cook and Haverbeke 1974;Kragh 1979;Martens and Micheisen 1981;Reethof 1973;Wiener and Keast 1959;Yamda et al 1977). Attenuation up to 4 dB (A) with hedges of 0.7-1.6 m thickness has been reported by Yamda et al (1977).…”

Section: Introductionmentioning

confidence: 97%

Dynamics of traffic noise in a tropical city Varanasi and its abatement through vegetation

Pathak

Tripathi

Mishra

2007

Environ Monit Assess

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Noise level monitoring and its reduction with different width and height of vegetation belt were studied in the Varanasi city. Noise level monitoring of the Varanasi city revealed the fact that area category A (without vegetation) was highly polluted as compare to area category B (with vegetation) having less fluctuation of traffic load. Four plant species Putranjeva roxburghi, Cestrum nocturnum, Hibiscus rosasinensis and Murraya peniculata were tested for noise reduction study at different frequencies. Experiment revealed the fact that H. rosasinensis reduced noise highest at both low and high frequencies (100-500 Hz, 22 dB and 2.5-6.3 KHz 26 dB), followed by M. peniculata (100-500 Hz, 18 dB and 2.5-6.3 KHz 20 dB), P. roxburghi (100-500 Hz 15 dB and 2.5-6.3 KHz 17 dB) and C. nocturnum (100-500 Hz 9 dB and 2.5-6.3 KHz 14 dB). Significance of vegetation belt in noise reduction was established with multiple regression models.

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“…Wide tree belts which exceed 30 m could reduce the noise by 4-8 dB A (Eyring, 1946;Reethof, 1973;Cook and Haverbeke, 1974). While a wide belt of sparse trees may reduce the noise effectively, it may not be always practical in landscape design.…”

Section: Introductionmentioning

confidence: 99%

Guidance for noise reduction provided by tree belts

Fang

Ling

2005

Landscape and Urban Planning

147

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The effects of noise reduction of six tree belts were examined. An amplifier was placed in front of each tree belt, while a noise meter was placed at various heights and distances behind the tree belt. Net noise reduction effect termed as "relative attenuation" was obtained by subtracting the sound pressure level at each measurement site behind the tree belt from the sound pressure level at equal distances over open ground. Five parameters, including visibility, height, and width of the tree belt, height of receiver and noise source, and the distance between noise source and receiver, were studied. A multiple regression model demonstrating the order of importance of the five parameters in relation to relative attenuation was developed. The five parameters were then transformed into three-dimensionless parameters, i.e., h : receiver and noise source height/tree height, d : distance between noise source and receiver/tree height, and m : belt width/visibility. By plotting the relative attenuation on the coordinate axis of h , d and m and curve fitting, a three-dimensionless map of noise reduction by tree belts was formed. The map can be used as guidance in designing three belts for noise reduction in environmental planning.

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Effect of Plantings on Radiation of Highway Noise

Cited by 18 publications

References 2 publications

Determination of roadside noise reduction effectiveness of Pinus sylvestris L. and Populus nigra L. in Erzurum, Turkey

Determination of roadside noise reduction effectiveness of Pinus sylvestris L. and Populus nigra L. in Erzurum, Turkey

Dynamics of traffic noise in a tropical city Varanasi and its abatement through vegetation

Guidance for noise reduction provided by tree belts

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