42-224
Maximum permitted impact vibration displacement
In all Manufacturing Districts, no activity shall cause or create an impact vibration, at any point on any lot line, with a displacement in excess of the permitted impact vibration displacement for the frequencies as set forth in the following table for the district indicated.
MAXIMUM PERMITTED IMPACT VIBRATION DISPLACEMENT
(in inches)
District | |||
Frequency (cycles per second) | M1 | M2 | M3 |
10 and below | .0016 | .0040 | .0078 |
10 - 20 | .0010 | .0020 | .0044 |
20 - 30 | .0006 | .0012 | .0022 |
30 - 40 | .0004 | .0008 | .0014 |
40 - 50 | .0002 | .0006 | .0010 |
50 - 60 | .0002 | .0004 | .0008 |
60 and over | .0002 | .0002 | .0008 |
