Article,

The reflection of road traffic noise

, and .
Journal of Sound and Vibration, (1983)

Abstract

In the U.K. prediction method for L10 noise levels from road traffic single figure corrections are used to allow for the effects of reflecting facades. In this paper, simple expressions are proposed as improved corrections. These are derived for facades lying parallel to the road by using geometrical reflection theory and the equations for distance and angle of view effects given in the U.K. prediction method. The expressions are functions of the receiver and reflector distance from the road, the angles subtended by the source line and the image of the source line at the receiver and also the type of ground cover. The corrections are compared with the results of computer simulations and show good agreement.

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