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Year : 2003  |  Volume : 5  |  Issue : 18  |  Page : 43--45

Noise control in the transportation corridor


Arup Acoustics, United Kingdom

Correspondence Address:
C J Manning
Arup Acoustics Cambridge, St Giles Hall, Pound Hill, Cambridge CB3 0AE
United Kingdom
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Source of Support: None, Conflict of Interest: None


PMID: 12631436

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This paper considers the opportunities for noise control within the route corridor required for construction of road, rail and other guided transport schemes. It deals with control of noise generation at source, and in the transmission path close to the point of generation. In this way it is possible to control the amount of acoustic power generated, and to absorb part of the radiated power at points of reflection. Purely reflective wayside barriers do little to absorb acoustic energy, merely reflecting it in a different direction. Whilst this has selfish benefits to the receptor in the shadow zone of the barrier, it makes things worse for others on the reflective side of the geometry. The paper therefore considers the options available to the engineer in the design of rolling and sliding interfaces and the use of acoustically absorptive finishes on all surfaces close to the point of noise generation. This includes the running surface itself, structural components, retaining walls, over and under passes, and the inner surfaces of track and wayside barriers.






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