The potential for substantial noise reductions by measures related to tyres and road surfaces are explored.
The variation in noise level within various tyre classes was studied in [Sandberg, 2006a]. The
data compiled there seemed to be rather consistent, suggesting that if one includes several
hundreds of tyres in the tests, the variation (range) will be 6-8 dB within a certain subcategory
of car tyres and about 10 dB within the total car tyre category (category C1 in formal
tyre terminology). Generally, tyres are not interchangeable between the subcategories, which
means that the range a vehicle manufacturer or owner can “play with” is 6-8 dB.
This report is part of the ongoing pilot study.
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created: Rok Rudolf, 25.03.2010 16:21:55 last modified: Rok Rudolf, 07.04.2010 15:30:51
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