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 The only way to reduce traffic noise is to break up the sound waves. Generally speaking, if a barrier blocks your view of the road, it will do a good job reducing noise transmission. You can put up a sturdy fence, or you can plant some trees.
Though hedges grow quickly, evergreen trees work the best for blocking noise. They are better than hardwoods, too, because they are fuller and they stay that way all year long. A screen of evergreens as close to the roadway as possible will create a barrier that will reduce traffic noise for years to come.
A U.S. Department of Energy study reports that trees reduce noise pollution by acting as a buffer and absorbing 50 percent of urban noise.
And whatever breaks down noise also breaks down wind.
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