6.501

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Exterior Noise Test

Accelerating from Constant Speed

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: false checked by R.L.
Exterior Ambient Noise Level dB(A): 37.9

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 80.4 1 80.7
2 79.4 2 80.9
3 79.4 3 80.9
4 79.9 4 80.9
5 79.2 5 81.0
Average of two highest actual noise levels = 80.2 dB(A) Average of two highest actual noise levels = 81.0 dB(A)