This map shows modeled outdoor noise across Royal Highlands 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 1,109 Royal Highlands residents, or 16.6%, live above that level. By land area, 22.6% of Royal Highlands is above 55 dBA.
See how noise in Royal Highlands compares to similar-sized neighborhoods.
Noise by Part of Royal Highlands
Average noise levels for Royal Highlands residents, grouped by direction from the center of Royal Highlands. Central Royal Highlands carries the highest population-weighted average; Northern Royal Highlands carries the lowest. Just 12% of residents in Northern Royal Highlands live in blocks above the EPA's 55 dBA threshold, a fifth of the share in Central Royal Highlands.
Central Royal Highlands
93% of people above 55 dBA
Eastern Royal Highlands
19% of people above 55 dBA
Northern Royal Highlands
12% of people above 55 dBA
Southern Royal Highlands
18% of people above 55 dBA
Western Royal Highlands
37% of people above 55 dBA
Central Royal Highlands sounds about 57% louder than Northern Royal Highlands to the human ear, a 6.5 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 Suncoast Pkwy do you need to be?
Suncoast Pkwy produces an estimated 72 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 20% of Royal Highlands sits under tree canopy (heavier than most neighborhoods) and roughly 14% 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.