Noise Levels in Highland Park, Manchester, CT | Find Quiet Neighborhoods With Our Sound Map
49 dBA
Average noise across Highland Park
Quiet office
806
Residents above the EPA 55 dBA threshold
18% of Highland Park residents
78 dBA
Loudest residential point
City bus interior
This map shows modeled outdoor noise across Highland 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 806 Highland Park residents, or 18.4%, live above that level. By land area, 32.2% of Highland Park is above 55 dBA.
Average noise levels for Highland Park residents, grouped by direction from the center of Highland Park. Central Highland Park carries the highest population-weighted average; Southern Highland Park carries the lowest. Just 2% of residents in Southern Highland Park live in blocks above the EPA's 55 dBA threshold, a fifth of the share in Central Highland Park.
Central Highland Park
55.7 dBA · Moderate-loud
Quiet office to normal conversation
100% of people above 55 dBA
QuietLoud
Eastern Highland Park
46.6 dBA · Mostly quiet
Quiet office
8% of people above 55 dBA
QuietLoud
Northern Highland Park
51.9 dBA · Moderate
Quiet office to normal conversation
23% of people above 55 dBA
QuietLoud
Southern Highland Park
44.5 dBA · Quiet
Quiet suburban street at night
2% of people above 55 dBA
QuietLoud
Western Highland Park
53.9 dBA · Moderate-loud
Quiet office to normal conversation
38% of people above 55 dBA
QuietLoud
Central Highland Park sounds about 117% louder than Southern Highland Park to the human ear, a 11.2 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-384 do you need to be?
I-384 produces an estimated 75 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
75 dBA
City bus interior
165 ft
61 dBA
Busy restaurant
330 ft
53 dBA
Quiet office to normal conversation
660 ft
45 dBA
Quiet suburban street at night
¼ mile
37 dBA
Soft rainfall
½ mile
35 dBA
Soft rainfall
Calculated from the model's calibrated attenuation formula. About 62% of Highland Park sits under tree canopy (much 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.
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Airport Noise
Bradley International (BDL) sits northwest of Highland Park. The U.S. Department of Transportation models aviation noise around this airport from federal traffic data, 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 65 dBA on the map's Overall layer. Blocks on the opposite side of Highland Park, particularly to the southeast, show no measurable aviation contribution. Use the Aviation toggle on the map above to isolate the airport's footprint.
How Noise Is Distributed Across Highland Park
The bar chart below shows the share of Highland Park residents in each noise band. About 80% of residents live below the EPA's 55 dBA threshold, and roughly 5% live in blocks above 60 dBA. Long-term exposure in that range is linked to elevated stress hormones and cardiovascular risk.
How Highland Park Compares
Highland Park sits the lowest among the peer group. Below: how Highland Park's average outdoor noise and share of residents above the EPA threshold compare with West Side Hartford, Keeney, Center, and Buckley.
Average noise level (dBA)
Highland Park's 49.3 dBA pop-weighted average is the lowest among the peer group. Connecticut as a whole averages 51.3 dBA and the U.S. averages 52.0 dBA. Both are lower than Highland Park because most of either area is rural land away from major roads.
Share of residents above 55 dBA
About 18.4% of Highland Park residents live in blocks where outdoor levels exceed the EPA's 55 dBA threshold. That's fewer than any of its peer group. Measured by land area instead, 32.2% of Highland Park's footprint sits above 55 dBA, against a Connecticut average of 27.3% and a national average of 28.1%.
What This Means if You're Moving to Highland 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 I-384 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 62% of Highland Park is under tree cover (much heavier than most neighborhoods), and the dominant land cover is low-density developed open space. 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. Bradley International's approach paths concentrate aviation noise to the northwest. Neighborhoods to the southeast 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.
