416.15

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Exterior Noise Test

Accelerating from Constant Speed

Date : 2011-04-07
Personnel : B.G., T.S. & S.C.
Temperature (°F) : 40 Humidity (%) : 93
Wind Speed (mph) : 5 Wind Direction : NNE
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 T.S.
Initial Sound Level Meter Calibration: true checked by T.S.
Exterior Ambient Noise Level dB(A): 45.7

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 69.6 1 72.2
2 68.7 2 69.8
3 68.4 3 70.5
4 69.5 4 70.3
5 69.1 5 69.8
Average of two highest actual noise levels = 69.6 dB(A) Average of two highest actual noise levels = 71.4 dB(A)