Abstract
THE Departmental Committee on “Noise in the Operation of Mechanically Propelled Vehicles” has published its third interim report (H.M. Stationery Office, Is. net). The Committee, of which Dr. G. W. C. Kaye is chairman, was set up by the Minister of Transport in 1934. The present report is based on loudness tests carried out for the Committee by the National Physical Laboratory on some 600 ‘used’ motor-vehicles representative of all the main types on the roads to-day, and of various ages up to thirteen years. A comparison of the results with those from the earlier tests on new vehicles, shows that on the average the used vehicles were the louder by some 4-5 phons. In the range of noise met with on the road (about 70105 phons) ordinary motorcars were much the quietest vehicles, while amongst the loudest were certain motor-cycles and sports cars, particularly at high speeds.
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Noise on the Road. Nature 139, 893 (1937). https://doi.org/10.1038/139893a0
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DOI: https://doi.org/10.1038/139893a0