TC40102N

NOVA BUS

Exterior Noise Test

Accelerating from Constant Speed

Date : 1995-06-20
Personnel : B.L., S.C. and R.H.
Temperature (°F) : 90 Humidity (%) : 67
Wind Speed (mph) : 2 Wind Direction : NW
Barometric Pressure (in.Hg) : 29.94
Verify that microphone height is 4 feet, wind speed is less than 12 mpg and ambient temperature is between 30 F and 90 F: true checked by BL
Initial Sound Level Meter Calibration: false checked by BL
Exterior Ambient Noise Level dB(A): 37.3

Accelerating from Constant Speed
Curb (Right) Side
Accelerating from Constant Speed
Street (Left) Side
Run # Measured Noise Level dB(A) Run # Measured Noise Level dB(A)
1 73.4 1 73.6
2 73.0 2 74.0
3 75.0 3 74.0
4 73.2 4 74.3
5 78.2 5 74.0
Average of two highest actual noise levels = 76.6 dB(A) Average of two highest actual noise levels = 74.2 dB(A)