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CPX - Noise measurements according to the Close ProXimity method

CPX

The Close ProXimity (CPX) method is a method that measures tire-to-road noise using microphones placed near the tire of a wheel that is rolling on a road pavement. The main purpose of the CPX method is to assess both the acoustic quality and the homogeneity of a road surface over a given route.

The CPX method is used, among other things, for the classification of pavements according to their acoustic quality, for the evaluation of the influence of a certain intervention in the road surface on noise production, for the monitoring of the acoustic quality of a pavement over time and for the initial acoustic control at the time of the acceptance of pavement works.

Download the data sheet (in French)

CPX

The Close ProXimity (CPX) method is a method that measures tire-to-road noise using microphones placed near the tire of a wheel that is rolling on a road pavement. The main purpose of the CPX method is to assess both the acoustic quality and the homogeneity of a road surface over a given route.

The CPX method is used, among other things, for the classification of pavements according to their acoustic quality, for the evaluation of the influence of a certain intervention in the road surface on noise production, for the monitoring of the acoustic quality of a pavement over time and for the initial acoustic control at the time of the acceptance of pavement works.

Download the data sheet (in French)