Article | REF: BR2056 V1

Road vehicle noise and road traffic noise

Authors: Louis-Ferdinand PARDO, Fabienne ANFOSSO LÉDÉE

Publication date: April 10, 2016, Review date: December 9, 2020

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2. Road traffic noise

RMS: Root Mean Square.

ASEP: Additional sound emission provisions (vehicle testing over a wider range than the homologation cycle).

SMA: Stone mastic asphalt.

TPA: Transfer path analysis.

OTPA: Operational transfer path analysis.

CPX: Close ProXimity (near-field or continuous measurement).

SPB: Statistical Pass-By (VI).

2.1 Acoustics of road vehicles

Vehicle exterior noise is analyzed by automakers according to internal standards and procedures to identify the vehicle and comply with current regulations. There are many sources contributing to vehicle exterior noise (figure...

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