Marion, AL Noise Levels
Is Marion, AL noisy?
Marion, AL sits below the 45 dB(A) floor BTS's transportation noise model measures at all, road, rail and aircraft alike. That's the reading at Marion's Census-defined center point, not any one street, BTS's map is a live raster, not a per-address service.
Where Marion ranks
Marion, AL sits among 8,515 US places this dataset covers with no measurable transportation noise, out of 12,137 places checked overall. By population, it ranks 6,653 of the 12,137 places in this dataset, home to about 2,702 people.
Your street may differ from Marion's reading
This page describes Marion as a whole. If one specific address is what matters, BTS publishes the same underlying map for free.
Behind Marion's reading
The methodology guide shows exactly how Marion's reading was built from BTS's tile data. Marion isn't the only surprise: the guide to why big cities show up quiet covers why this happens.