District Regulations
P.V. | = | 6.28 D x F | |
Where | |||
P.V. | = | Particle velocity in inches per second. | |
D | = | Single amplitude displacement in inches. | |
F | = | Vibration frequency (Hertz) in cycles per second. | |
Table I |
Maximum Peak Particle Velocity (inches per second) | ||||
|---|---|---|---|---|
Vibration | A* | B | C | |
Steady state** | .02 | .05 | .10 | |
Impact*** | .04 | .10 | .20 | |
NOTES: * Reduced by 1/2 between 10:00 p.m. and 6:00 a.m. ** STEADY STATE — Vibrations which are continuous or vibrations in discrete impulses more frequent than 60 per minute. | ||||
*** IMPACT — Discrete impulses which do not exceed 60 per minute. | ||||
A = Vibration velocity measured at a residential district boundary. | ||||
B = Vibration velocity measured at the boundary of an industrial district and any other district, excluding residential districts. | ||||
C = Vibration velocity measured at an adjacent lot line within the industrial district. | ||||
District Regulations
P.V. | = | 6.28 D x F | |
Where | |||
P.V. | = | Particle velocity in inches per second. | |
D | = | Single amplitude displacement in inches. | |
F | = | Vibration frequency (Hertz) in cycles per second. | |
Table I |
Maximum Peak Particle Velocity (inches per second) | ||||
|---|---|---|---|---|
Vibration | A* | B | C | |
Steady state** | .02 | .05 | .10 | |
Impact*** | .04 | .10 | .20 | |
NOTES: * Reduced by 1/2 between 10:00 p.m. and 6:00 a.m. ** STEADY STATE — Vibrations which are continuous or vibrations in discrete impulses more frequent than 60 per minute. | ||||
*** IMPACT — Discrete impulses which do not exceed 60 per minute. | ||||
A = Vibration velocity measured at a residential district boundary. | ||||
B = Vibration velocity measured at the boundary of an industrial district and any other district, excluding residential districts. | ||||
C = Vibration velocity measured at an adjacent lot line within the industrial district. | ||||