Abstract
A new method is presented to calculate the sound increase of traffic noise due to reflections between buildings. The new approach is a result of numerous ray tracing simulations to model the sound propagation in street gorges. The application of the method is based on look-up tables, thus yielding rapid results. The situation parameters ‘width of the street’, ‘height of the facades’, ‘distance from the receiver to the traffic lane’ and ‘width and position of gaps’ are taken into account. Measurements of the influence of buildings in real situations and predictions by the new method were compared and showed good agreement.
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