A novel approach to the acoustic characterisation of porous road surfaces.
Watts, Gregory R. Morgan, P.
Watts, Gregory R.
Morgan, P.
Publication Date
2003
End of Embargo
Supervisor
Rights
Peer-Reviewed
Yes
Open Access status
Accepted for publication
Institution
Department
Awarded
Embargo end date
Additional title
Abstract
Porous road surfaces offer an effective means of reducing the generation and propagation of noise from road traffic. However, the porosity of these surfaces can deteriorate over time, leading to a reduction in their noise reducing properties. Efficient methods are therefore required for monitoring this performance. Existing techniques for performing in-situ measurements of acoustic absorption are unsuitable for use within the traffic stream. Static measurements using time domain Maximum Length Sequence (MLS) based techniques have been demonstrated to offer advantages over traditional techniques, presenting the opportunity for measurements under dynamic conditions. This paper describes the design of a system for carrying out dynamic MLS-based measurements. Results are presented which demonstrate that stable dynamic measurements can be carried out at speeds of up to 30 km/h.
Version
No full-text available in the repository
Citation
Watts, G.R. and Morgan, P. (2003). A novel approach to the acoustic characterisation of porous road surfaces. Applied Acoustics. Vol. 64, No. 12, pp. 1171-1186.
Link to publisher’s version
Link to published version
Link to Version of Record
Type
Article