CITI BUS HD SENATOR

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Exterior Noise Test

Accelerating from Constant Speed

Date : 2007-09-12
Personnel : B.S., T.S. and S.C.
Temperature (°F) : 66 Humidity (%) : 55
Wind Speed (mph) : 8 Wind Direction : nw
Barometric Pressure (in.Hg) : 30.09
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 S.C.
Initial Sound Level Meter Calibration: false checked by S.C.
Exterior Ambient Noise Level dB(A): 46.7

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 66.6 1 67.1
2 66.9 2 67.9
3 66.9 3 68.2
4 66.3 4 67.7
5 66.9 5 67.5
Average of two highest actual noise levels = 66.9 dB(A) Average of two highest actual noise levels = 68.1 dB(A)