Mobile, AL Noise Levels
Is Mobile, AL noisy?
Mobile, AL 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 figure is sampled at one coordinate, the Census Bureau's own internal point for Mobile, not a street-by-street survey of the whole place.
Mobile'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 Mobile ranks
Among the 3,622 US places in this dataset with any measurable transportation noise, Mobile ranks 1,797, loudest first. Population is about 201,367, 128th largest of the 12,137 places covered here.
Your street may differ from Mobile's reading
This page describes Mobile as a whole. If one specific address is what matters, BTS publishes the same underlying map for free.
Behind Mobile's reading
The methodology guide shows exactly how Mobile's reading was built from BTS's tile data. Mobile isn't the only surprise: the guide to why big cities show up quiet covers why this happens.