GC II 8551

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Exterior Noise Test

Accelerating from Standstill

Date : 2003-04-24
Personnel : B.S., T.S. & S.C.
Temperature (°F) : 46 Humidity (%) : 40
Wind Speed (mph) : 5 Wind Direction : SW
Barometric Pressure (in.Hg) : 30.06
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: true checked by S.C.
Exterior Ambient Noise Level dB(A): 48.1

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 72.5 1 73.3
2 72.6 2 72.7
3 73.0 3 72.8
4 72.8 4 72.9
5 72.8 5 72.7
Average of two highest actual noise levels = 72.9 dB(A) Average of two highest actual noise levels = 73.1 dB(A)