Landscaping design reduces airport’s noise pollution

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