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Exterior Noise Test

Accelerating from Constant Speed

Date : 2012-03-19
Personnel : G.C., T.S. & J.P.
Temperature (°F) : 68 Humidity (%) : 56
Wind Speed (mph) : Calm Wind Direction : Calm
Barometric Pressure (in.Hg) : 30.16
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): 35.9

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 69.9 1 71.2
2 68.4 2 71.3
3 69.2 3 70.5
4 69.5 4 71.3
5 69.5 5 71.5
Average of two highest actual noise levels = 69.7 dB(A) Average of two highest actual noise levels = 71.4 dB(A)