... Road traffic noise shielding by vegetation belts of limited depth T. Van Renterghema,n, D. Botteldooren1,a, K. Verheyen2,baGhent University, Department of Information Technology, ... 2012abstract Road traffic noise propagation through a vegetation belt of limited depth (15 m)containing periodically arranged trees along a road is numerically assessed by means of 3D finite-difference ... case of soundpropagation through shrub layers and for tree crown scattering. In Section 5, 3D –FDTD calculation results are presentedfor road traffic noise shielding by vegetation belts of limited...