Special Regulations
Angle of Parking Space (degrees) | One-Way Aisle (feet) | Two-Way Aisle (feet) | |
|---|---|---|---|
90 | 25 | 24 | |
60 | 18 | -- | |
45 | 15 | -- | |
30 | 12 | -- | |
Parallel | 12 | 24 |
Maximum Permitted Sound Pressure Level (decibels) | ||
|---|---|---|
Octave Band (cycles per second) | Sound Pressure Level (decibels) | |
0 to 75 | 69 | |
75 to 150 | 54 | |
150 to 300 | 47 | |
300 to 600 | 41 | |
600 to 1,200 | 38 | |
1,200 to 2,400 | 38 | |
2,400 to 4,800 | 38 | |
Above 4,800 | 38 | |
Type of Operation or Character of Noise | Correction (decibels) | |
|---|---|---|
Noise of impulsive character (hammering, etc.) | 5 | |
Noise of periodic character (hum, screech, etc.) | 5 |
Frequency of Ground Motion in Cycles Per Second | Maximum Amplitude of Ground Motion in Inches Not More Than | |
|---|---|---|
Up to 10 | .0305 | |
10+ to 20 | .0153 | |
20+ to 30 | .0102 | |
30+ to 40 | .0076 | |
40+ to 50 | .0061 | |
50+ to 60 | .0051 |
Special Regulations
Angle of Parking Space (degrees) | One-Way Aisle (feet) | Two-Way Aisle (feet) | |
|---|---|---|---|
90 | 25 | 24 | |
60 | 18 | -- | |
45 | 15 | -- | |
30 | 12 | -- | |
Parallel | 12 | 24 |
Maximum Permitted Sound Pressure Level (decibels) | ||
|---|---|---|
Octave Band (cycles per second) | Sound Pressure Level (decibels) | |
0 to 75 | 69 | |
75 to 150 | 54 | |
150 to 300 | 47 | |
300 to 600 | 41 | |
600 to 1,200 | 38 | |
1,200 to 2,400 | 38 | |
2,400 to 4,800 | 38 | |
Above 4,800 | 38 | |
Type of Operation or Character of Noise | Correction (decibels) | |
|---|---|---|
Noise of impulsive character (hammering, etc.) | 5 | |
Noise of periodic character (hum, screech, etc.) | 5 |
Frequency of Ground Motion in Cycles Per Second | Maximum Amplitude of Ground Motion in Inches Not More Than | |
|---|---|---|
Up to 10 | .0305 | |
10+ to 20 | .0153 | |
20+ to 30 | .0102 | |
30+ to 40 | .0076 | |
40+ to 50 | .0061 | |
50+ to 60 | .0051 |