Noise Levels in East Rock, New Haven, CT | Find Quiet Neighborhoods With Our Sound Map
59 dBA
Average noise across East Rock
Normal conversation an arm’s length away
6,423
Residents above the EPA 55 dBA threshold
69% of East Rock residents
84 dBA
Loudest residential point
Food blender at arm’s length
This map shows modeled outdoor noise across East Rock 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 6,423 East Rock residents, or 69.1%, live above that level. By land area, 65.2% of East Rock is above 55 dBA.
Average noise levels for East Rock residents, grouped by direction from the center of East Rock. Southern East Rock carries the highest population-weighted average; Northern East Rock carries the lowest. Just 29% of residents in Northern East Rock live in blocks above the EPA's 55 dBA threshold, a third of the share in Southern East Rock.
Central East Rock
58.6 dBA · Loud
Normal conversation an arm’s length away
72% of people above 55 dBA
QuietLoud
Eastern East Rock
63.5 dBA · Loud
Busy restaurant
84% of people above 55 dBA
QuietLoud
Northern East Rock
53.8 dBA · Moderate-loud
Quiet office to normal conversation
29% of people above 55 dBA
QuietLoud
Southern East Rock
66.1 dBA · Loud
Highway traffic 50 ft away
100% of people above 55 dBA
QuietLoud
Western East Rock
57.4 dBA · Moderate-loud
Normal conversation an arm’s length away
60% of people above 55 dBA
QuietLoud
Southern East Rock sounds about 135% louder than Northern East Rock to the human ear, a 12.3 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-91 do you need to be?
I-91 produces an estimated 78 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 quiet suburban street at night.
At source
78 dBA
City bus interior
165 ft
65 dBA
Busy restaurant
330 ft
58 dBA
Normal conversation an arm’s length away
660 ft
50 dBA
Quiet office
¼ mile
43 dBA
Quiet suburban street at night
½ mile
36 dBA
Soft rainfall
Calculated from the model's calibrated attenuation formula. About 34% of East Rock sits under tree canopy (much heavier than most neighborhoods) and roughly 43% 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 East Rock. 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
Tweed/New Haven (HVN) sits south of East Rock. 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 55 dBA on the map's Overall layer. Blocks on the opposite side of East Rock, particularly to the north, show no measurable aviation contribution. Use the Aviation toggle on the map above to isolate the airport's footprint.
How Noise Is Distributed Across East Rock
The bar chart below shows the share of East Rock residents in each noise band. About 22% of residents live below the EPA's 55 dBA threshold, and roughly 38% live in blocks above 60 dBA. Long-term exposure in that range is linked to elevated stress hormones and cardiovascular risk.
How East Rock Compares
East Rock sits at the louder end of the spectrum. Below: how East Rock's average outdoor noise and share of residents above the EPA threshold compare with Downtown New Haven, Westville, Newhallville, and Hill.
Average noise level (dBA)
East Rock's 59.1 dBA pop-weighted average is at the louder end of the spectrum. Connecticut as a whole averages 51.3 dBA and the U.S. averages 52.0 dBA. Both are lower than East Rock because most of either area is rural land away from major roads.
Share of residents above 55 dBA
About 69.1% of East Rock 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, 65.2% of East Rock'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 East Rock
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-91 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 East Rock is under tree cover (much heavier than most neighborhoods), 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. Tweed/New Haven's approach paths concentrate aviation noise to the south. Neighborhoods to the north 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.
