Butler, PA Noise Levels
Butler, PA: what the federal noise map shows
Butler, PA reads 47.5 dB(A) on BTS's 24-hour average, inside HUD's "Acceptable" noise zone, 65 dB(A) day-night average or below under 24 CFR 51.104, the federal government's own line for building housing with no extra sound attenuation required. That's the reading at Butler's Census-defined center point, not any one street, BTS's map is a live raster, not a per-address service.
Butler's noise, by source
Each of the three transportation modes gets its own model from BTS; the combined figure above is what they add up to.
Where Butler ranks
Among the 3,622 US places in this dataset with any measurable transportation noise, Butler ranks 2,244, loudest first. By population, it ranks 2,655 of the 12,137 places in this dataset, home to about 13,010 people.
Your street may differ from Butler's reading
For a single house or lot in Butler 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 Butler's figure, see the methodology guide. The guide to reading a quiet result explains what "no measurable noise" actually means at Butler.