Traffic noise abatement through tree and shrub vegetation
Traffic noise abatement through tree and shrub vegetation
M. Ayaz and M. Nauman Arshad
ABSTRACT
Traffic noise abatement through tree and shrub rows was studied on the main highway between Peshawar and Islamabad/Rawalpindi. Road stretches with trees and shrubs were selected all along this highway. Noise of traffic was measured behind the vegetation stretches and controlled with a Noise Level Meter. It was found that the greens alone in combination with shrubs could cut down the traffic noise by 5-8 dB(A). Trees in combination with shrubs proved more effective and multiple rows of young trees of Eucalyptus camaldulensis
in combination with Tecoma stans gave a maximum reduction of 8 dB(A) in the traffic noise. It is recommended that multiple rows of evergreen trees in combination with shrubs must be planted along the highways, as a measure to cut down traffic noise in addition to other environmental benefits.
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March 1998
Vol. 48, Iss. 1
