The performances of barriers having different shapes and surface conditions were tested
using the boundary element method in a well-controlled environment. The heights and …

The boundary element numerical modelling method is used to study the insertion loss of
rectangular, T-shaped and cylindrical edged noise barriers with rigid, absorbing and soft …

The paper describes an investigation about the acoustic performance of noise barriers with
quadratic residue diffuser (QRD) tops, and with T-, Arrow-, Cylindrical and Y-shape profiles …

Solar energy solutions that do not require additional space are critical. Noise barriers, which
are built in low-value lands next to noise sources, provide effective areas for PV modules …

In general, trees are viewed as admired symbolic individuals, producing rec-ational, spiritual
and emotional rejuvenation. Their lifespan can far exceed that of humans. Planting a tree is …

This research has a twofold environmental benefit. On the one hand, there is the recycling of
a waste by-product and, on the other hand, the reduction of traffic noise pollution levels. The …

This paper deals with some recent developments in the design and performance of roadside
barriers that are applied as a means of controlling road traffic noise. It is a review paper that …

Road barrier diffracting caps have shown a renewed interest for several years since they
give the opportunity of increasing the barrier efficiency without changing its overall height …

Although a considerable amount of research has been undertaken regarding the
performance of T-profile noise barriers, the information available to the practicing highway …

This research work aims at developing a new multi-criteria optimization method dedicated to
complex road noise barriers. Numerical simulations of the acoustical propagation have been …