Noise Levels in 02745, MA | Find Quiet Neighborhoods With Our Sound Map
56 dBA
Average noise across 02745
Normal conversation an arm’s length away
11,294
Residents above the EPA 55 dBA threshold
56% of 02745 residents
80 dBA
Loudest residential point
City bus interior
This map shows modeled outdoor noise across 02745 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 11,294 02745 residents, or 55.8%, live above that level. By land area, 56.8% of 02745 is above 55 dBA.
Average noise levels for 02745 residents, grouped by direction from the center of 02745. Western 02745 carries the highest population-weighted average; Eastern 02745 carries the lowest. Just 55% of residents in Eastern 02745 live in blocks above the EPA's 55 dBA threshold, roughly the same as the share in Western 02745.
Central 02745
56.3 dBA · Moderate-loud
Normal conversation an arm’s length away
68% of people above 55 dBA
QuietLoud
Eastern 02745
54.8 dBA · Moderate-loud
Quiet office to normal conversation
55% of people above 55 dBA
QuietLoud
Northern 02745
57.8 dBA · Moderate-loud
Normal conversation an arm’s length away
54% of people above 55 dBA
QuietLoud
Southern 02745
55.3 dBA · Moderate-loud
Quiet office to normal conversation
57% of people above 55 dBA
QuietLoud
Western 02745
59.4 dBA · Loud
Normal conversation an arm’s length away
55% of people above 55 dBA
QuietLoud
Western 02745 sounds about 38% louder than Eastern 02745 to the human ear, a 4.6 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 Alfred M Bessette Memorial Hwy do you need to be?
Alfred M Bessette Memorial Hwy produces an estimated 74 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
74 dBA
City bus interior
165 ft
60 dBA
Normal conversation an arm’s length away
330 ft
52 dBA
Quiet office to normal conversation
660 ft
43 dBA
Quiet suburban street at night
¼ mile
35 dBA
Soft rainfall
½ mile
35 dBA
Soft rainfall
Calculated from the model's calibrated attenuation formula. About 28% of 02745 sits under tree canopy (about average for zip codes) and roughly 46% 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 02745. 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.
How Noise Is Distributed Across 02745
The bar chart below shows the share of 02745 residents in each noise band. About 32% of residents live below the EPA's 55 dBA threshold, and roughly 15% live in blocks above 60 dBA. Long-term exposure in that range is linked to elevated stress hormones and cardiovascular risk.
How 02745 Compares
02745 sits at the louder end of the spectrum. Below: how 02745's average outdoor noise and share of residents above the EPA threshold compare with 02747, 02746, 02721, and 02719.
Average noise level (dBA)
02745's 56.5 dBA pop-weighted average is at the louder end of the spectrum. Massachusetts as a whole averages 54.3 dBA and the U.S. averages 52.0 dBA. Both are lower than 02745 because most of either area is rural land away from major roads.
Share of residents above 55 dBA
About 55.8% of 02745 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, 56.8% of 02745's footprint sits above 55 dBA, against a Massachusetts average of 40.0% and a national average of 28.1%.
What This Means if You're Moving to 02745
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 Alfred M Bessette Memorial Hwy 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 28% of 02745 is under tree cover (about average for zip codes), 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.
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.
