Description
Landscaping design reduced airport noise pollutions affecting nearby residents by ~2 to 3 decibels. Triangular patterns were formed to deflect sound waves.
“series of ridges spaced so that the distance between them was roughly equivalent to the wavelength of the airport noise—about 36 feet apart—and there are 150 of them in all, rising about 10 feet from ground level.” –Gizmodo
Location
Amsterdam Shipol Airport, Netherlands
More Info
The Journal of Landscape Institute
Shipol Airport: Solutions for ground noise