D-40

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Exterior Noise Test

Accelerating from Standstill

Date : 1995-02-14
Personnel : B.L., B.R. & R.H.
Temperature (°F) : 32 Humidity (%) : 40
Wind Speed (mph) : 8 Wind Direction : NW
Barometric Pressure (in.Hg) : 30.27
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: true checked by R.L.L.
Exterior Ambient Noise Level dB(A): 39.8

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 72.9 1 74.3
2 72.8 2 74.7
3 72.7 3 74.6
4 73.0 4 74.5
5 73.0 5 74.4
Average of two highest actual noise levels = 73.0 dB(A) Average of two highest actual noise levels = 74.7 dB(A)