This map shows modeled outdoor noise across Big Pine Key at 100-meter resolution, combining road, aviation, and rail sources. Green areas measure below 45 dBA. Orange and red exceed the EPA's 55 dBA outdoor threshold linked to long-term health effects. Use the layer toggles to view each source on its own or all together.
What the numbers sound like
- 30 dBAWhisper
- 40 dBASoft rainfall
- 45 dBAQuiet suburban street at night
- 50 dBAQuiet office
- 55 dBAEPA outdoor threshold: light traffic 100 ft away
- 60 dBANormal conversation an arm's length away
- 65 dBABusy restaurant
- 70 dBAHighway traffic 50 ft away
- 80 dBACity bus interior
Population Above the EPA Outdoor Threshold
The EPA's 55 dBA outdoor reference level is a common benchmark for residential noise exposure, especially for activity interference, annoyance, and long-term community noise concerns. About 842 Big Pine Key residents, or 21.1%, live above that level. By land area, 29.7% of Big Pine Key is above 55 dBA.
See how noise in Big Pine Key compares to similar-sized cities.
Noise by Part of Big Pine Key
Average noise levels for Big Pine Key residents, grouped by direction from the center of Big Pine Key. Eastern Big Pine Key carries the highest population-weighted average; Northern Big Pine Key carries the lowest. Just 16% of residents in Northern Big Pine Key live in blocks above the EPA's 55 dBA threshold, about two-thirds of the share in Eastern Big Pine Key.
Central Big Pine Key
36% of people above 55 dBA
Eastern Big Pine Key
26% of people above 55 dBA
Northern Big Pine Key
16% of people above 55 dBA
Southern Big Pine Key
21% of people above 55 dBA
Western Big Pine Key
19% of people above 55 dBA
Eastern Big Pine Key sounds about 25% louder than Northern Big Pine Key to the human ear, a 3.2 dBA gap. Every 10 dBA roughly doubles perceived loudness. Within any of these directions, two homes a quarter mile apart can still differ by 10 or more dBA depending on how close they sit to a major highway.
How far back from Overseas Hwy do you need to be?
Overseas Hwy produces an estimated 66 dBA at its loudest centerline points. Noise drops logarithmically with distance, with the exact rate depending on what's between you and the road. Tree cover, walls, terrain, and pavement type all matter. At roughly a quarter mile back, traffic fades into the noise level of a soft rainfall.
Calculated from the model's calibrated attenuation formula. About 10% of Big Pine Key sits under tree canopy (lighter than most cities) and roughly 28% is impervious surface like pavement and rooftops. Both are folded into the per-place decay rate above. Heavier canopy pulls noise down faster with distance; impervious surfaces slow the drop.