On site determination of sound absorption coefficient of road pavements using mobile Laboratory

In this paper we will present a new on-site acoustical absorption coefficient measurement system implemented on a mobile Laboratory, based on pressure-velocity probe, that will be developed inside the NEREiDE LIFE project. Discussion will point out pros and cons of the proposed method compared to other methods such as the Adrienne (ISO 13472-1) and the impedance tube (ISO 10534).