Noise Levels in Manassas Park, VA | Find Quiet Neighborhoods With Our Sound Map
55 dBA
Average noise across Manassas Park
Quiet office to normal conversation
5,690
Residents above the EPA 55 dBA threshold
38% of Manassas Park residents
70 dBA
Loudest residential point
Highway traffic 50 ft away
This map shows modeled outdoor noise across Manassas Park 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.
Overall
Road
Rail
Aviation
Click the map to explore
35 dBa55 dBa (EPA limit)90+ dBa
3545557090
Quietest (dBA)Loudest
Colorblind friendlyoff
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 5,690 Manassas Park residents, or 38.4%, live above that level. By land area, 44.1% of Manassas Park is above 55 dBA.
Average noise levels for Manassas Park residents, grouped by direction from the center of Manassas Park. Central Manassas Park carries the highest population-weighted average; Northern Manassas Park carries the lowest. Just 35% of residents in Northern Manassas Park live in blocks above the EPA's 55 dBA threshold, three-quarters of the share in Central Manassas Park.
Central Manassas Park
57.2 dBA · Moderate-loud
Normal conversation an arm’s length away
51% of people above 55 dBA
QuietLoud
Eastern Manassas Park
55.4 dBA · Moderate-loud
Quiet office to normal conversation
28% of people above 55 dBA
QuietLoud
Northern Manassas Park
53.7 dBA · Moderate-loud
Quiet office to normal conversation
35% of people above 55 dBA
QuietLoud
Southern Manassas Park
54.2 dBA · Moderate-loud
Quiet office to normal conversation
31% of people above 55 dBA
QuietLoud
Western Manassas Park
55.6 dBA · Moderate-loud
Quiet office to normal conversation
44% of people above 55 dBA
QuietLoud
Central Manassas Park sounds about 27% louder than Northern Manassas Park to the human ear, a 3.5 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 Manassas Dr do you need to be?
Manassas Dr produces an estimated 68 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
68 dBA
Highway traffic 50 ft away
165 ft
54 dBA
Quiet office to normal conversation
330 ft
47 dBA
Quiet office
660 ft
39 dBA
Soft rainfall
¼ mile
35 dBA
Soft rainfall
½ mile
35 dBA
Soft rainfall
Calculated from the model's calibrated attenuation formula. About 34% of Manassas Park sits under tree canopy (about average for cities) and roughly 34% 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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Rail Noise
Active freight rail runs through parts of Manassas Park. For most blocks the rail-only contribution is small. Combined road-plus-rail noise rarely exceeds road noise on its own. The exceptions are the handful of blocks within roughly a quarter mile of the right-of-way during pass-through hours.
Use the Rail toggle on the map above to isolate rail's contribution from road and aviation.
Airport Noise
Washington Dulles International (IAD) sits north of Manassas Park. 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 Manassas Park, 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 Manassas Park
The bar chart below shows the share of Manassas Park residents in each noise band. About 38% of residents live below the EPA's 55 dBA threshold, and roughly 10% live in blocks above 60 dBA. Long-term exposure in that range is linked to elevated stress hormones and cardiovascular risk.
How Manassas Park Compares
Manassas Park sits the highest among the peer group. Below: how Manassas Park's average outdoor noise and share of residents above the EPA threshold compare with Clifton, Bull Run, Sudley, and Buckhall.
Average noise level (dBA)
Manassas Park's 55.4 dBA pop-weighted average is the highest among the peer group. Virginia as a whole averages 52.8 dBA and the U.S. averages 52.0 dBA. Both are lower than Manassas Park because most of either area is rural land away from major roads.
Share of residents above 55 dBA
About 38.4% of Manassas Park residents live in blocks where outdoor levels exceed the EPA's 55 dBA threshold. That's more than any of its peer group. Measured by land area instead, 44.1% of Manassas Park'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 Manassas Park
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 Manassas Dr 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 34% of Manassas Park is under tree cover (about average for cities), and the dominant land cover is low-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.
Sources & Methodology
The BestNeighborhood noise model is calibrated against nearly one million federal ground-truth measurements across four states. Road noise is computed from segment-level federal traffic data and propagated outward using physics-based acoustic decay, with attenuation rates that depend on the surrounding land cover.
All inputs are published federal datasets. Block-level noise is computed by combining road, rail, and aviation sound sources in the energy domain, the same physics used in professional environmental noise assessments. Read the full methodology.
