Noise Levels in West Gate, Sudley, VA | Find Quiet Neighborhoods With Our Sound Map
56 dBA
Average noise across West Gate
Quiet office to normal conversation
937
Residents above the EPA 55 dBA threshold
30% of West Gate residents
67 dBA
Loudest residential point
Highway traffic 50 ft away
This map shows modeled outdoor noise across West Gate 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 937 West Gate residents, or 30.5%, live above that level. By land area, 33.8% of West Gate is above 55 dBA.
66.2% below 55 dBA
33.8% above 55 dBA
See how noise in West Gate compares to similar-sized neighborhoods.
Noise by Part of West Gate
Average noise levels for West Gate residents, grouped by direction from the center of West Gate. The highest population-weighted average is in southeastern West Gate; the lowest is in northwestern West Gate, where just 22% of residents live in blocks above the EPA's 55 dBA threshold, about half the share in the loudest section.
Southeastern West Gate
58.3 dBA · Loud
Normal conversation an arm’s length away
Central West Gate
57.4 dBA · Moderate-loud
Normal conversation an arm’s length away
Northeastern West Gate
56.3 dBA · Moderate-loud
Normal conversation an arm’s length away
Eastern West Gate
56.1 dBA · Moderate-loud
Normal conversation an arm’s length away
Northwestern West Gate
54.4 dBA · Moderate-loud
Quiet office to normal conversation
To the human ear, noise in southeastern West Gate sounds about 31% louder than in northwestern West Gate, a 3.9 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 I-66 do you need to be?
I-66 produces an estimated 55 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.
At source
55 dBA
Quiet office to normal conversation
165 ft
41 dBA
Quiet suburban street at night
330 ft
35 dBA
Soft rainfall
660 ft
35 dBA
Soft rainfall
¼ mile
35 dBA
Soft rainfall
½ mile
35 dBA
Soft rainfall
Calculated from the model's calibrated attenuation formula. About 20% of West Gate sits under tree canopy (heavier than most neighborhoods) and roughly 52% 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.
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Airport Noise
Washington Dulles International (IAD) sits north of West Gate. The U.S. Department of Transportation measures aviation noise around this airport directly, and the model uses those federal measurements rather than synthetic predictions.
Blocks under the approach and departure paths carry combined road-plus-aviation noise, with some exceeding 75 dBA on the map's Overall layer. Blocks on the opposite side of West Gate, particularly to the south, show no measurable aviation contribution. Use the Aviation toggle on the map above to isolate the airport's footprint.
How Noise Is Distributed Across West Gate
The bar chart below shows the share of West Gate residents in each noise band. About 45% of residents live below the EPA's 55 dBA threshold, and roughly 20% live in blocks above 60 dBA. Long-term exposure in that range is linked to elevated stress hormones and cardiovascular risk.
How West Gate Compares
West Gate sits at the louder end of the spectrum. Below: how West Gate's average outdoor noise and share of residents above the EPA threshold compare with Wellington, downtown-manassas-manassas-va, Weems, and georgetown-south-manassas-va.
Average noise level (dBA)
West Gate's 55.5 dBA pop-weighted average is at the louder end of the spectrum. Virginia as a whole averages 52.8 dBA and the U.S. averages 52.0 dBA. Both are lower than West Gate because most of either area is rural land away from major roads.
Share of residents above 55 dBA
About 30.5% of West Gate residents live in blocks where outdoor levels exceed the EPA's 55 dBA threshold. That's in the middle of its peer group. Measured by land area instead, 33.8% of West Gate's footprint sits above 55 dBA, against a Virginia average of 30.0% and a national average of 28.1%.
What This Means if You're Moving to West Gate
- Distance from highways matters more than the neighborhood name. Two homes in the same zip code can differ by 20 dBA if one sits 100 meters from I-66 and the other 500 meters away. The model captures this at 100-meter resolution, so noise exposure changes block by block.
- Tree canopy can help reduce modeled noise exposure. Roughly 20% of West Gate is under tree cover (heavier than most neighborhoods), and the dominant land cover is medium-intensity developed land. Both are measured from federal USDA Forest Service and USGS satellite imagery at 30-meter resolution. Streets with 60% or higher canopy show 3 to 5 dBA lower noise than comparable streets with bare ground or pavement, which is why the per-place decay rate above already accounts for it.
- Airport noise is directional. Washington Dulles International's approach paths concentrate aviation noise to the north. Neighborhoods to the south of downtown show no measurable contribution from the airport.
