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95dB air-horn for 16 to 20 hours per day is not non-violent.



How close do you have to be for it to be 95dB?


A quick search shows 120dB at 1m isn't abnormal for a truck air horn. A line of them from far enough away will decrease in level by 3dB per doubling of distance. 8 doublings would make it ~96dB at 256m.




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