F-53

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Exterior Noise Test

Accelerating from Constant Speed

Date : 1999-04-27
Personnel : B.L. and R.H.
Temperature (°F) : 55 Humidity (%) : 40
Wind Speed (mph) : 5 Wind Direction : E
Barometric Pressure (in.Hg) : 30.04
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 B.L.
Initial Sound Level Meter Calibration: false checked by B.L.
Exterior Ambient Noise Level dB(A): 39.1

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 75.1 1 78.3
2 75.0 2 77.1
3 76.1 3 77.7
4 75.9 4 76.9
5 75.9 5 77.7
Average of two highest actual noise levels = 76.0 dB(A) Average of two highest actual noise levels = 78.0 dB(A)