This map shows modeled outdoor noise across 05656 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 112 05656 residents, or 3.7%, live above that level. By land area, 4.4% of 05656 is above 55 dBA.
See how noise in 05656 compares to similar-sized zip codes.
Noise by Part of 05656
Average noise levels for 05656 residents, grouped by direction from the center of 05656. Central 05656 carries the highest population-weighted average; Northern 05656 carries the lowest. Just 1% of residents in Northern 05656 live in blocks above the EPA's 55 dBA threshold, a fifth of the share in Central 05656.
Central 05656
16% of people above 55 dBA
Eastern 05656
2% of people above 55 dBA
Northern 05656
1% of people above 55 dBA
Southern 05656
2% of people above 55 dBA
Western 05656
6% of people above 55 dBA
Central 05656 sounds about 100% louder than Northern 05656 to the human ear, a 10.0 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 Th-4 do you need to be?
Th-4 produces an estimated 52 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 49% of 05656 sits under tree canopy (much heavier than most zip codes) and roughly 11% 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.