Green noise barriers to go on trial. Plants can soften the appearance of noise barriers and improve the streetscape, Highways Department Chief Engineer Chow Chun-wah says. Special panels will be put ...

But a lack of information about how well foliage can block out a myriad of city sounds, combined with the infinite number of ways greenery can be landscaped, makes narrowing in on the perfect green ...

Power plant unveils "green" barrier. ... uses state-of-the-art extrusion equipment that can manufacture 2 million linear feet of deck and — million feet of sound barrier a year.

The 400-foot Green Noise Wall, to be built this fall on westbound Interstate 70 east of Columbus, is ODOT's attempt to develop an alternative to concrete sound barriers.

It is the acoustic panel of the noise barrier which is made of highly polluting industrial waste. “The panel is made of 50% tyre waste, 40% fly-ash and 10% binding material.

The ugly concrete slabs that line urban highways might seem like a necessary evil. Without them, anyone living nearby would have to deal with traffic noise that was twice as loud. In Amsterdam ...