A Project of Urban Traffic Noise Control

In this paper, physico-mathematical considerations about the shape of the probability distribution functions of the fundamental acoustical magnitudes intervening in a determination of urban traffic noise are presented. The shapes of the functions of the related magnitudes are determined by the assumptions made for one of them.

It is deduced that, a priori, it is not possible to postulate that an experimental distribution of sound pressure levels would fit to a normal law.

Finally, the features that an automatic system for the acquisition and processing of acoustical signals must accomplish, are analyzed