Jean Lafitte, LA Noise Levels
Jean Lafitte, LA: what the federal noise map shows
Jean Lafitte, LA reads 52.5 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. Road traffic drives that number here, not the other two sources. Treat this as Jean Lafitte's one representative point, not a promise about every block in it, BTS's map wasn't built to resolve individual streets.
Jean Lafitte'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.
What this means for a house here
Upgraded windows, door seals and STC-rated glazing meaningfully cut broadband, near-continuous road noise.
Where Jean Lafitte ranks
Among the 3,622 US places in this dataset with any measurable transportation noise, Jean Lafitte ranks 1,446, loudest first. By population, it ranks 8,024 of the 12,137 places in this dataset, home to about 1,815 people.
Your street may differ from Jean Lafitte's reading
For a single house or lot in Jean Lafitte 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 Jean Lafitte's figure, see the methodology guide. Since road traffic is what's driving this reading, the guide to what actually cuts each kind of noise covers the fix that fits.