This map shows modeled outdoor noise across Audubon Place 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 1,935 Audubon Place residents, or 35.8%, live above that level. By land area, 52.8% of Audubon Place is above 55 dBA.
See how noise in Audubon Place compares to similar-sized neighborhoods.
Noise by Part of Audubon Place
Average noise levels for Audubon Place residents, grouped by direction from the center of Audubon Place. The highest population-weighted average is in western Audubon Place; the lowest is in southern Audubon Place, where just 57% of residents live in blocks above the EPA's 55 dBA threshold, roughly the same as the share in the loudest section.
Western Audubon Place
50% of people above 55 dBA
Southwestern Audubon Place
59% of people above 55 dBA
Northeastern Audubon Place
30% of people above 55 dBA
Central Audubon Place
33% of people above 55 dBA
Southern Audubon Place
57% of people above 55 dBA
To the human ear, noise in western Audubon Place sounds about 39% louder than in southern Audubon Place, a 4.8 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 24TH Ave do you need to be?
24TH Ave produces an estimated 63 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 9% of Audubon Place sits under tree canopy (lighter than most neighborhoods) and roughly 59% 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.