D-40

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Exterior Noise Test

Accelerating from Constant Speed

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: false checked by R.L.L.
Exterior Ambient Noise Level dB(A): 40.2

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 72.1 1 74.9
2 72.3 2 74.2
3 73.2 3 75.3
4 73.1 4 74.2
5 72.8 5 74.7
Average of two highest actual noise levels = 73.2 dB(A) Average of two highest actual noise levels = 75.1 dB(A)