Noise Levels in West Main Street Historic District, Norwalk, OH | Find Quiet Neighborhoods With Our Sound Map
53 dBA
Average noise across West Main Street Historic District
Quiet office to normal conversation
1,441
Residents above the EPA 55 dBA threshold
32% of West Main Street Historic District residents
73 dBA
Loudest residential point
City bus interior
This map shows modeled outdoor noise across West Main Street Historic District 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 1,441 West Main Street Historic District residents, or 32.2%, live above that level. By land area, 41.1% of West Main Street Historic District is above 55 dBA.
58.9% below 55 dBA
41.1% above 55 dBA
See how noise in West Main Street Historic District compares to similar-sized neighborhoods.
Noise by Part of West Main Street Historic District
Average noise levels for West Main Street Historic District residents, grouped by direction from the center of West Main Street Historic District. The highest population-weighted average is in northeastern West Main Street Historic District; the lowest is in eastern West Main Street Historic District, where just 15% of residents live in blocks above the EPA's 55 dBA threshold, three-quarters of the share in the loudest section.
Northeastern West Main Street Historic District
58.0 dBA · Loud
Normal conversation an arm’s length away
Central West Main Street Historic District
57.2 dBA · Moderate-loud
Normal conversation an arm’s length away
Southeastern West Main Street Historic District
55.4 dBA · Moderate-loud
Quiet office to normal conversation
Southwestern West Main Street Historic District
53.6 dBA · Moderate-loud
Quiet office to normal conversation
Eastern West Main Street Historic District
53.1 dBA · Moderate-loud
Quiet office to normal conversation
To the human ear, noise in northeastern West Main Street Historic District sounds about 40% louder than in eastern West Main Street Historic District, a 4.9 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 do you need to be?
produces an estimated 73 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
73 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
44 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 16% of West Main Street Historic District sits under tree canopy (about average for neighborhoods) and roughly 32% 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 West Main Street Historic District. 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 West Main Street Historic District
The bar chart below shows the share of West Main Street Historic District residents in each noise band. About 68% of residents live below the EPA's 55 dBA threshold, and roughly 8% live in blocks above 60 dBA. Long-term exposure in that range is linked to elevated stress hormones and cardiovascular risk.
How West Main Street Historic District Compares
West Main Street Historic District sits the lowest among the peer group. Below: how West Main Street Historic District's average outdoor noise and share of residents above the EPA threshold compare with Garden District, Downtown Fremont Historic District, South Side, and Shelby Center Historic District.
Average noise level (dBA)
West Main Street Historic District's 53.1 dBA pop-weighted average is the lowest among the peer group. Ohio as a whole averages 51.1 dBA and the U.S. averages 52.0 dBA. Both are lower than West Main Street Historic District because most of either area is rural land away from major roads.
Share of residents above 55 dBA
About 32.2% of West Main Street Historic District 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, 41.1% of West Main Street Historic District's footprint sits above 55 dBA, against a Ohio average of 26.4% and a national average of 28.1%.
What This Means if You're Moving to West Main Street Historic District
- 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 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 16% of West Main Street Historic District is under tree cover (about average for 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.
