Bus/BA

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Exterior Noise Test

Accelerating from Standstill

Date : 2000-03-06
Personnel : S.C. & E.D.
Temperature (°F) : 46 Humidity (%) : 39
Wind Speed (mph) : 3 Wind Direction : WNW
Barometric Pressure (in.Hg) : 30.21
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 B.L.
Initial Sound Level Meter Calibration: true checked by A
Exterior Ambient Noise Level dB(A): 1.0

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 76.3 1 77.7
2 77.1 2 76.8
3 77.4 3 77.5
4 77.1 4 76.9
5 77.5 5 77.2
Average of two highest actual noise levels = 77.5 dB(A) Average of two highest actual noise levels = 77.6 dB(A)