6.501

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Exterior Noise Test

Accelerating from Standstill

Date : 1997-03-24
Personnel : R.L., B.B., & R.H.
Temperature (°F) : 37 Humidity (%) : 43
Wind Speed (mph) : Calm Wind Direction : Calm
Barometric Pressure (in.Hg) : 30.45
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.
Initial Sound Level Meter Calibration: true checked by R.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 83.3 1 84.7
2 82.5 2 85.5
3 82.9 3 85.7
4 81.9 4 85.5
5 81.6 5 85.4
Average of two highest actual noise levels = 83.1 dB(A) Average of two highest actual noise levels = 85.6 dB(A)