This map shows modeled outdoor noise across Sandy Beach 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 7,245 Sandy Beach residents, or 46.0%, live above that level. By land area, 47.2% of Sandy Beach is above 55 dBA.
See how noise in Sandy Beach compares to similar-sized neighborhoods.
Noise by Part of Sandy Beach
Average noise levels for Sandy Beach residents, grouped by direction from the center of Sandy Beach. The highest population-weighted average is in northeastern Sandy Beach; the lowest is in southern Sandy Beach, where just 22% of residents live in blocks above the EPA's 55 dBA threshold, about half the share in the loudest section.
Northeastern Sandy Beach
47% of people above 55 dBA
Eastern Sandy Beach
44% of people above 55 dBA
Southeastern Sandy Beach
44% of people above 55 dBA
Western Sandy Beach
18% of people above 55 dBA
Southern Sandy Beach
22% of people above 55 dBA
To the human ear, noise in northeastern Sandy Beach sounds about 52% louder than in southern Sandy Beach, a 6.0 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 I-195 do you need to be?
I-195 produces an estimated 76 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 21% of Sandy Beach sits under tree canopy (heavier than most neighborhoods) and roughly 61% 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.