Example: air traffic controller
Loudness comparison chart caltrans
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Loudness Comparison Chart - Caltrans
www.dot.ca.govLOUDNESS COMPARISON CHART (dBA) 110 100 90 80 70 60 50 40 30 20 10 0 Noise Level (dBA) Jet Fly-over at 1000 ft Rock Band Common Outdoor Activities Common Indoor …