D40 LF

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Exterior Noise Test

Accelerating from Constant Speed

Date : 1994-04-25
Personnel : B.L., S.C., & R.H.
Temperature (°F) : 80 Humidity (%) : 60
Wind Speed (mph) : 5 Wind Direction : NW
Barometric Pressure (in.Hg) : 29.89
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 R.L.L.
Exterior Ambient Noise Level dB(A): 55.7

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 74.4 1 76.7
2 73.8 2 75.5
3 73.5 3 75.4
4 74.5 4 75.7
5 73.8 5 75.1
Average of two highest actual noise levels = 74.5 dB(A) Average of two highest actual noise levels = 76.2 dB(A)