This map shows modeled outdoor noise across 02725 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 995 02725 residents, or 50.8%, live above that level. By land area, 66.2% of 02725 is above 55 dBA.
See how noise in 02725 compares to similar-sized zip codes.
Noise by Part of 02725
Average noise levels for 02725 residents, grouped by direction from the center of 02725. The highest population-weighted average is in northern 02725; the lowest is in eastern 02725, where just 32% of residents live in blocks above the EPA's 55 dBA threshold, roughly the same as the share in the loudest section.
Northern 02725
23% of people above 55 dBA
Northwestern 02725
23% of people above 55 dBA
Southwestern 02725
23% of people above 55 dBA
Central 02725
28% of people above 55 dBA
Eastern 02725
32% of people above 55 dBA
To the human ear, noise in northern 02725 sounds about 16% louder than in eastern 02725, a 2.1 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 Gold Star Mothers Memorial Hwy do you need to be?
Gold Star Mothers Memorial Hwy 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 quiet office.
Calculated from the model's calibrated attenuation formula. About 42% of 02725 sits under tree canopy (heavier than most zip codes) and roughly 30% 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.