Sound Radiation from Vehicles on the Right-Angle Bend of the Road

Abstract

We study sound radiation from vehicles moving on city roads with right-angle bends. The effect of wind on the acoustic field is taken into account. First, a solution to the problem of two-point noise sources moving in the opposite directions is found using the integral Fourier transforms over the space variables and time. The inverse transforms are approximately calculated by the stationary phase method. The solution to the general problem is obtained as a superposition of many partial solutions. The numerical analysis of the characteristics of traffic noise is carried out for the Textile Workers Avenue dual carriageway in the town of Łódź, Poland.