This map shows modeled outdoor noise across Missionary Acres 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 3 Missionary Acres residents, or 2.0%, live above that level. By land area, 3.3% of Missionary Acres is above 55 dBA.
See how noise in Missionary Acres compares to similar-sized cities.
Noise by Part of Missionary Acres
Average noise levels for Missionary Acres residents, grouped by direction from the center of Missionary Acres. Western Missionary Acres carries the highest population-weighted average; Eastern Missionary Acres carries the lowest. Just 1% of residents in Eastern Missionary Acres live in blocks above the EPA's 55 dBA threshold, a third of the share in Western Missionary Acres.
Eastern Missionary Acres
1% of people above 55 dBA
Northern Missionary Acres
1% of people above 55 dBA
Southern Missionary Acres
2% of people above 55 dBA
Western Missionary Acres
3% of people above 55 dBA
Western Missionary Acres sounds about 89% louder than Eastern Missionary Acres to the human ear, a 9.2 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 P do you need to be?
P 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 67% of Missionary Acres sits under tree canopy (much heavier than most cities) and roughly 0% 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.