This map shows modeled outdoor noise across Parcelas Saint Just 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 2,262 Parcelas Saint Just residents, or 38.1%, live above that level. By land area, 38.5% of Parcelas Saint Just is above 55 dBA.
See how noise in Parcelas Saint Just compares to similar-sized neighborhoods.
Noise by Part of Parcelas Saint Just
Average noise levels for Parcelas Saint Just residents, grouped by direction from the center of Parcelas Saint Just. The highest population-weighted average is in northeastern Parcelas Saint Just; the lowest is in southern Parcelas Saint Just, where just 27% of residents live in blocks above the EPA's 55 dBA threshold, three-quarters of the share in the loudest section.
Northeastern Parcelas Saint Just
41% of people above 55 dBA
Northwestern Parcelas Saint Just
46% of people above 55 dBA
Central Parcelas Saint Just
43% of people above 55 dBA
Southeastern Parcelas Saint Just
26% of people above 55 dBA
Southern Parcelas Saint Just
27% of people above 55 dBA
To the human ear, noise in northeastern Parcelas Saint Just sounds about 164% louder than in southern Parcelas Saint Just, a 14.0 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
Luis Munoz Marin International (SJU) sits north of Parcelas Saint Just. 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 65 dBA on the map's Overall layer. Blocks on the opposite side of Parcelas Saint Just, particularly to the south, show no measurable aviation contribution. Use the Aviation toggle on the map above to isolate the airport's footprint.
How Noise Is Distributed Across Parcelas Saint Just
The bar chart below shows the share of Parcelas Saint Just residents in each noise band. About 68% of residents live below the EPA's 55 dBA threshold, and roughly 0% live in blocks above 60 dBA. Long-term exposure in that range is linked to elevated stress hormones and cardiovascular risk.
How Parcelas Saint Just Compares
Parcelas Saint Just sits at the quieter end of the spectrum. Below: how Parcelas Saint Just's average outdoor noise and share of residents above the EPA threshold compare with Urbanizacion San Martin, Villa Fontana, Urbanizacion Metropolis, and Monte Flores.
Average noise level (dBA)
Parcelas Saint Just's 53.8 dBA pop-weighted average is at the quieter end of the spectrum. Puerto Rico as a whole averages 52.9 dBA and the U.S. averages 52.0 dBA. Both are lower than Parcelas Saint Just because most of either area is rural land away from major roads.
Share of residents above 55 dBA
About 38.1% of Parcelas Saint Just 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, 38.5% of Parcelas Saint Just's footprint sits above 55 dBA, against a Puerto Rico average of 36.1% and a national average of 28.1%.
What This Means if You're Moving to Parcelas Saint Just
- 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 Pr-848 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 Parcelas Saint Just is under tree cover (about average for neighborhoods), 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. Luis Munoz Marin International's approach paths concentrate aviation noise to the north. Neighborhoods to the south 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.