40 LFW

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Exterior Noise Test

Accelerating from Constant Speed

Date : 1998-05-13
Personnel : B.L., S.C., and R.H.
Temperature (°F) : 64 Humidity (%) : 49
Wind Speed (mph) : Wind Direction : Calm
Barometric Pressure (in.Hg) : 30.19
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 R.L.L.
Initial Sound Level Meter Calibration: false checked by A
Exterior Ambient Noise Level dB(A): 1.0

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 75.2 1 78.9
2 75.2 2 78.2
3 75.9 3 78.5
4 74.8 4 78.4
5 75.5 5 78.4
Average of two highest actual noise levels = 75.7 dB(A) Average of two highest actual noise levels = 78.7 dB(A)