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Exterior Noise Test

Accelerating from Constant Speed

Date : 2009-01-23
Personnel : P.D., T.S. & S.C.
Temperature (°F) : 44 Humidity (%) : 51
Wind Speed (mph) : 8 Wind Direction : SSW
Barometric Pressure (in.Hg) : 29.81
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): 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 77.5 1 74.1
2 75.7 2 71.2
3 77.5 3 73.2
4 75.6 4 71.5
5 74.1 5 74.8
Average of two highest actual noise levels = 77.5 dB(A) Average of two highest actual noise levels = 74.4 dB(A)