This map shows modeled outdoor noise across Augusta Street Area 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 520 Augusta Street Area residents, or 10.6%, live above that level. By land area, 16.4% of Augusta Street Area is above 55 dBA.
See how noise in Augusta Street Area compares to similar-sized neighborhoods.
Noise by Part of Augusta Street Area
Average noise levels for Augusta Street Area residents, grouped by direction from the center of Augusta Street Area. The highest population-weighted average is in northwestern Augusta Street Area; the lowest is in southern Augusta Street Area, where just 3% of residents live in blocks above the EPA's 55 dBA threshold, a fifth of the share in the loudest section.
Northwestern Augusta Street Area
16% of people above 55 dBA
Western Augusta Street Area
22% of people above 55 dBA
Eastern Augusta Street Area
10% of people above 55 dBA
Southwestern Augusta Street Area
10% of people above 55 dBA
Southern Augusta Street Area
3% of people above 55 dBA
To the human ear, noise in northwestern Augusta Street Area sounds about 35% louder than in southern Augusta Street Area, a 4.3 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 Augusta St do you need to be?
Augusta St produces an estimated 62 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 Augusta Street Area sits under tree canopy (much heavier than most neighborhoods) and roughly 19% 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.