Noise Levels in Schofield Barracks, HI | Find Quiet Neighborhoods With Our Sound Map

55 dBA

Average noise across Schofield Barracks

Quiet office to normal conversation

194

Residents above the EPA 55 dBA threshold

37% of Schofield Barracks residents

71 dBA

Loudest residential point

Highway traffic 50 ft away

This map shows modeled outdoor noise across Schofield Barracks 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

Schofield Barracks, HI Map of Noise Levels in Schofield Barracks

35 45 55 70 90

Quietest (dBA) Loudest

Colorblind friendly off

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 194 Schofield Barracks residents, or 36.6%, live above that level. By land area, 35.1% of Schofield Barracks is above 55 dBA.

64.9% below 55 dBA

35.1% above 55 dBA

See how noise in Schofield Barracks compares to similar-sized cities.

Central Schofield Barracks sounds about 0% louder than Northern Schofield Barracks to the human ear, a 0.0 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.

Airport Noise

Daniel K Inouye International (HNL) sits southeast of Schofield Barracks. 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 Schofield Barracks, particularly to the northwest, show no measurable aviation contribution. Use the Aviation toggle on the map above to isolate the airport's footprint.

How Noise Is Distributed Across Schofield Barracks

The bar chart below shows the share of Schofield Barracks residents in each noise band. About 31% of residents live below the EPA's 55 dBA threshold, and roughly 30% live in blocks above 60 dBA. Long-term exposure in that range is linked to elevated stress hormones and cardiovascular risk.

How Schofield Barracks Compares

Schofield Barracks sits the highest among the peer group. Below: how Schofield Barracks's average outdoor noise and share of residents above the EPA threshold compare with Makaha, Waikane, Whitmore Village, and Kunia.

Average noise level (dBA)

Schofield Barracks's 55.1 dBA pop-weighted average is the highest among the peer group. Hawaii as a whole averages 54.8 dBA and the U.S. averages 52.0 dBA. Both are lower than Schofield Barracks because most of either area is rural land away from major roads.

Share of residents above 55 dBA

About 36.6% of Schofield Barracks 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, 35.1% of Schofield Barracks's footprint sits above 55 dBA, against a Hawaii average of 34.4% and a national average of 28.1%.

What This Means if You're Moving to Schofield Barracks

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 0% of Schofield Barracks is under tree cover (about average for cities), and the dominant land cover is . 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. Daniel K Inouye International's approach paths concentrate aviation noise to the southeast. Neighborhoods to the northwest 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.

Federal datasets used:

FHWA Highway Performance Monitoring System: road geometry, traffic counts, lane configuration
U.S. DoT Bureau of Transportation Statistics National Transportation Noise Map: aviation and rail noise, road calibration ground truth
USGS / MRLC National Land Cover Database: land cover and impervious surface coverage
USDA Forest Service Tree Canopy Cover: vegetation density for sound propagation
U.S. Census Bureau TIGER/Line: block-level geography and population
U.S. EPA Levels Document: 55 dBA outdoor reference level

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.