The role of mutual screening by vehicle bodies in traffic noise propagation throughout a built-up area

Accounting for the effect of diffuse reflections and fittings within street canyons, on the sound propagation predicted by ray tracing codes

“…Another phenomenon that has received little attention, and which can modify sound distribution within street canyons, is the multiple diffusive reflections by urban facilities or vehicles located on the street [14]. Walerian et al proved that vehicles can accurately be modeled as semitransparent screens [15]. These works underline the need to account for diffusive reflections and street fittings to enhance street canyon sound predictions.…”