綠帶型式與配置方式對減低噪音之研究(2/2)
Date Issued
2005
Date
2005
Author(s)
DOI
932313B002028
Abstract
This study investigates the noise reduction effect of 35 evergreen-tree belts. A point
source of noise was positioned in front of the tree belts and the noise level at various points in
the belts were measured with a noise meter. Factors important for noise reduction include
visibility, width, height, and length of the tree belts. Stepwise regression was employed to
examine the factors associated with noise reduction. A negative logarithmic relationship
between the visibility and relative attenuation was found. A positive logarithmic relationship
between relative attenuation and the width, length or height of the tee belts was also found. A
map showing the relationship between visibility together with width was plotted. The map
provides some practical suggestions concerning design of tree belts for noise reduction.
source of noise was positioned in front of the tree belts and the noise level at various points in
the belts were measured with a noise meter. Factors important for noise reduction include
visibility, width, height, and length of the tree belts. Stepwise regression was employed to
examine the factors associated with noise reduction. A negative logarithmic relationship
between the visibility and relative attenuation was found. A positive logarithmic relationship
between relative attenuation and the width, length or height of the tee belts was also found. A
map showing the relationship between visibility together with width was plotted. The map
provides some practical suggestions concerning design of tree belts for noise reduction.
Subjects
Plant
Noise reduction
Relative attenuation
Publisher
臺北市:國立臺灣大學園藝學系暨研究所
Type
report
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