Search results for: tyres - Bridge of Knowledge

PERS - QUIET ROAD SURFACE FOR URBAN AREAS
Publication
- Year 2013
Traffic noise is one of the most important environmental problems in densely populated urban areas. At low speeds the tyre/road interaction dominates all other sources. It is anticipated that when electric and hybrid vehicles gain dominance in city traffic, the importance of tyre/road noise will still increase as electric engines are much less noisy than combustion engines. On the other hand, electric and hybrid urban vehicles...
The importance of the bottom layer in double-layer porous asphalt for noise reduction
Publication
- U. Sandberg
- P. Mioduszewski
- Journal of the Acoustical Society of America - Year 2012
Double-layer porous asphalt concrete (DPAC) surfaces are generally considered to be the acoustically most effective low noise road surfaces ready for implementation. While DPAC used on highways in warm climates may have an average life of around 8 years, in Scandinavia with severe winter climate DPAC usually survive only about 3 years; partly due to wear of studded tyres. An ongoing project in Sweden, applying DPAC and single-layer...

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