This map shows modeled outdoor noise across Marieville 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 2,951 Marieville residents, or 59.7%, live above that level. By land area, 61.8% of Marieville is above 55 dBA.
See how noise in Marieville compares to similar-sized neighborhoods.
Noise by Part of Marieville
Average noise levels for Marieville residents, grouped by direction from the center of Marieville. The highest population-weighted average is in central Marieville; the lowest is in eastern Marieville, where just 51% of residents live in blocks above the EPA's 55 dBA threshold, three-quarters of the share in the loudest section.
Central Marieville
63% of people above 55 dBA
Southeastern Marieville
61% of people above 55 dBA
Northwestern Marieville
54% of people above 55 dBA
Western Marieville
44% of people above 55 dBA
Eastern Marieville
51% of people above 55 dBA
To the human ear, noise in central Marieville sounds about 68% louder than in eastern Marieville, a 7.5 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 Ri-15 E do you need to be?
Ri-15 E produces an estimated 64 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 23% of Marieville sits under tree canopy (heavier than most neighborhoods) and roughly 50% 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.