Irvine, CA Noise Levels
Irvine, CA: what the federal noise map shows
At Irvine, CA, road, rail and aircraft noise all fall below the 45 dB(A) floor BTS's national map can distinguish from silence. That's the reading at Irvine's Census-defined center point, not any one street, BTS's map is a live raster, not a per-address service.
Where Irvine ranks
Irvine, CA sits among 8,515 US places this dataset covers with no measurable transportation noise, out of 12,137 places checked overall. Population is about 318,683, 64th largest of the 12,137 places covered here.
Your street may differ from Irvine's reading
For a single house or lot in Irvine rather than the town-wide figure above, BTS's own map is the same free source, queried directly.
More on how this number was built
For exactly which federal dataset feeds Irvine's figure, see the methodology guide. The guide to reading a quiet result explains what "no measurable noise" actually means at Irvine.