Abstract
This study was designed to investigate the effects of vegetation on the perception of sound using both real traffic sources and reproduced recorded traffic noise. Subjective assessments were made of traffic noise at locations within three roadside sites with varying degrees of visual screening by vegetation and at the Transport Research Laboratory’s Noise Barrier Test Facility (NBTF) using an artificial sound source. It was shown that for the same noise exposure level average ratings of noisiness were higher where the degree of visual screening was higher. That is, on average listeners were more sensitive to noise when the source was visually screened. It was further shown that the visual attractiveness of vegetation did not appear to benefit noise sensitivity.
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