This map shows modeled outdoor noise across Downtown Chandler 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 1,532 Downtown Chandler residents, or 46.2%, live above that level. By land area, 44.9% of Downtown Chandler is above 55 dBA.
See how noise in Downtown Chandler compares to similar-sized neighborhoods.
Noise by Part of Downtown Chandler
Average noise levels for Downtown Chandler residents, grouped by direction from the center of Downtown Chandler. The highest population-weighted average is in central Downtown Chandler; the lowest is in southwestern Downtown Chandler, where just 12% of residents live in blocks above the EPA's 55 dBA threshold, about half the share in the loudest section.
Central Downtown Chandler
29% of people above 55 dBA
Northern Downtown Chandler
26% of people above 55 dBA
Southwestern Downtown Chandler
12% of people above 55 dBA
To the human ear, noise in central Downtown Chandler sounds about 17% louder than in southwestern Downtown Chandler, a 2.3 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.
Airport Noise
Phoenix Sky Harbor International (PHX) sits northwest of Downtown Chandler. 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 45 dBA on the map's Overall layer. Blocks on the opposite side of Downtown Chandler, 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 Downtown Chandler
The bar chart below shows the share of Downtown Chandler residents in each noise band. About 74% of residents live below the EPA's 55 dBA threshold, and roughly 13% live in blocks above 60 dBA. Long-term exposure in that range is linked to elevated stress hormones and cardiovascular risk.
How Downtown Chandler Compares
Downtown Chandler sits the lowest among the peer group. Below: how Downtown Chandler's average outdoor noise and share of residents above the EPA threshold compare with The Islands, Escalante, Baseline-Hardy, and Tempe Royal Estates.
Average noise level (dBA)
Downtown Chandler's 53.4 dBA pop-weighted average is the lowest among the peer group. Arizona as a whole averages 53.0 dBA and the U.S. averages 52.0 dBA. Both are lower than Downtown Chandler because most of either area is rural land away from major roads.
Share of residents above 55 dBA
About 46.2% of Downtown Chandler 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, 44.9% of Downtown Chandler's footprint sits above 55 dBA, against a Arizona average of 28.3% and a national average of 28.1%.
What This Means if You're Moving to Downtown Chandler
- 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 Downtown Chandler is under tree cover (much lighter than most neighborhoods), 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.
- Airport noise is directional. Phoenix Sky Harbor 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.
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.