Citation

Fard SM, Kessissoglou N, Samuels S, Burgess M. J. Acoust. Soc. Am. 2013; 133(5): 3451.

Affiliation

School of Mech. and Manufacturing Eng., The Univ. of New South Wales, 11/127A, Barker St., Sydney, NSW 2032, Australiafardsmb@gmail.com.

Copyright

(Copyright © 2013, American Institute of Physics)

DOI

10.1121/1.4806113

PMID

23655448

Abstract

Australia relies heavily on road transport due to its large area and low population density in many parts of the country. Trucks and heavy vehicles are commonly used for road freight. In addition to their normal vehicle brakes, heavy vehicles are typically fitted with release engine brakes which operate by causing the engine to act as a compressor when braking. Compression braking generates a distinct low frequency rumble that can heard at large distances and is a major source of community annoyance reactions against the heavy vehicle industry. Noise from compression brakes is an on-going cause of complaint from many Australian residents, particularly in rural areas and at night-time. Noise barriers can be used to reduce the spread of general traffic noise and their effectiveness is determined by many factors. This paper presents a review of barriers optimized for road traffic noise and the frequency ranges at which the various barrier designs are most efficient, with a view to selecting the barriers that may be more effective at reducing the low frequency noise from compression brakes.

Language: en