This map shows modeled outdoor noise across Annabella 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 144 Annabella residents, or 16.8%, live above that level. By land area, 9.9% of Annabella is above 55 dBA.
See how noise in Annabella compares to similar-sized cities.
Noise by Part of Annabella
Average noise levels for Annabella residents, grouped by direction from the center of Annabella. Northern Annabella carries the highest population-weighted average; Western Annabella carries the lowest. Just 2% of residents in Western Annabella live in blocks above the EPA's 55 dBA threshold, a fifth of the share in Northern Annabella.
Central Annabella
14% of people above 55 dBA
Eastern Annabella
3% of people above 55 dBA
Northern Annabella
48% of people above 55 dBA
Southern Annabella
14% of people above 55 dBA
Western Annabella
2% of people above 55 dBA
Northern Annabella sounds about 88% louder than Western Annabella to the human ear, a 9.1 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 Annabella Rd / Sevier River do you need to be?
Annabella Rd / Sevier River produces an estimated 53 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 0% of Annabella sits under tree canopy (much lighter than most cities) and roughly 27% 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.