This map shows modeled outdoor noise across McCracken 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 31 McCracken residents, or 5.8%, live above that level. By land area, 5.5% of McCracken is above 55 dBA.
See how noise in McCracken compares to similar-sized cities.
Noise by Part of McCracken
Average noise levels for McCracken residents, grouped by direction from the center of McCracken. Western McCracken carries the highest population-weighted average; Eastern McCracken carries the lowest. Just 3% of residents in Eastern McCracken live in blocks above the EPA's 55 dBA threshold, a third of the share in Western McCracken.
Eastern McCracken
3% of people above 55 dBA
Northern McCracken
4% of people above 55 dBA
Southern McCracken
6% of people above 55 dBA
Western McCracken
12% of people above 55 dBA
Western McCracken sounds about 25% louder than Eastern McCracken to the human ear, a 3.2 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 Jj do you need to be?
Jj 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 1% of McCracken sits under tree canopy (much lighter 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.