42-424

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

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