Vers une caractérisation harmonisée des propriétés phoniques des revêtements de chaussée : essais croisés CPX sur véhicules légers

Abstract : Road surfaces play an important role in the noise emission of road traf c and it is important to be able to characterize their performance accurately. The so-called CPX (Close ProXimity) rolling noise measurement method, which has recently been standardized internationally, is a tool particularly suitable for this characterization. The Round Robin tests presented in the paper aimed at studying whether the different measurement systems existing in France, using different test vehicles and tyres, can produce consistent results. Six different measuring devices tested a total of eleven tyre con gurations on six to eight pavements at different speeds. The results con rm the importance of the test tyre, its type but also its age. The use of different test tyres leads to a different evaluation of the sound performance of a road surface, whether absolute or relative to another surface. However, the classi cation of surfaces according to their sound properties remains consistent regardless of the test tyre used.
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Submitted on : Wednesday, August 7, 2019 - 2:36:39 PM
Last modification on : Thursday, August 8, 2019 - 1:11:43 AM

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  • HAL Id : hal-02264669, version 1

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Joël Lelong, Fabienne Anfosso Ledee. Vers une caractérisation harmonisée des propriétés phoniques des revêtements de chaussée : essais croisés CPX sur véhicules légers. Acoustique et Techniques : trimestriel d'information des professionnels de l'acoustique, Neuilly-sur-Seine : Centre d'information et de documentation sur le bruit, 2019, 22-29 pp. ⟨hal-02264669⟩

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