This map shows modeled outdoor noise across Harvey Cedars 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 22 Harvey Cedars residents, or 6.5%, live above that level. By land area, 6.8% of Harvey Cedars is above 55 dBA.
See how noise in Harvey Cedars compares to similar-sized cities.
Noise by Part of Harvey Cedars
Average noise levels for Harvey Cedars residents, grouped by direction from the center of Harvey Cedars. Northern Harvey Cedars carries the highest population-weighted average; Central Harvey Cedars carries the lowest. Just 6% of residents in Central Harvey Cedars live in blocks above the EPA's 55 dBA threshold, about two-thirds of the share in Northern Harvey Cedars.
Central Harvey Cedars
6% of people above 55 dBA
Northern Harvey Cedars
11% of people above 55 dBA
Southern Harvey Cedars
4% of people above 55 dBA
Northern Harvey Cedars sounds about 96% louder than Central Harvey Cedars to the human ear, a 9.7 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 Ocean County 607 do you need to be?
Ocean County 607 produces an estimated 62 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 Harvey Cedars sits under tree canopy (much lighter than most cities) and roughly 65% 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.