Noise contours highlight existing or potential areas of significant aircraft noise exposure (as identified by the FAA) and are a series of lines superimposed on a map of the airport’s environs. These lines represent various levels of average exposure (typically 65, 70, and 75 dBA).
Noise contours are used to assess the relative aircraft noise exposure levels of different runway and or flight corridor alternatives.
Below is a chart that shows comparative noise levels in decibels. Click on the link to view the Airport’s most recent noise contort map: Boca Raton Airport Noise Contours 2016- 2017