This map shows modeled outdoor noise across 19967 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 104 19967 residents, or 10.7%, live above that level. By land area, 20.0% of 19967 is above 55 dBA.
See how noise in 19967 compares to similar-sized zip codes.
Noise by Part of 19967
Average noise levels for 19967 residents, grouped by direction from the center of 19967. Eastern 19967 carries the highest population-weighted average; Western 19967 carries the lowest. Just 0% of residents in Western 19967 live in blocks above the EPA's 55 dBA threshold, a fifth of the share in Eastern 19967.
Central 19967
5% of people above 55 dBA
Eastern 19967
23% of people above 55 dBA
Northern 19967
10% of people above 55 dBA
Southern 19967
10% of people above 55 dBA
Western 19967
0% of people above 55 dBA
Eastern 19967 sounds about 145% louder than Western 19967 to the human ear, a 12.9 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 Sr26e do you need to be?
Sr26e produces an estimated 59 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 18% of 19967 sits under tree canopy (about average for zip codes) and roughly 40% 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.