CITIBUS

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Exterior Noise Test

Accelerating from Standstill

Date : 2008-04-29
Personnel : BS and SC
Temperature (°F) : 52 Humidity (%) : 42
Wind Speed (mph) : 8 Wind Direction : n
Barometric Pressure (in.Hg) : 29.9
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 SC
Initial Sound Level Meter Calibration: true checked by SC
Exterior Ambient Noise Level dB(A): 39.8

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 81.8 1 85.8
2 82.3 2 84.9
3 81.4 3 84.7
4 82.0 4 84.9
5 81.4 5 84.7
Average of two highest actual noise levels = 82.2 dB(A) Average of two highest actual noise levels = 85.4 dB(A)