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Exterior Noise Test

Accelerating from Constant Speed

Date : 1993-01-20
Personnel : B.L., S.C., & R.H.
Temperature (°F) : 38 Humidity (%) : 80
Wind Speed (mph) : 2 Wind Direction : W
Barometric Pressure (in.Hg) : 30.75
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 B.L.
Initial Sound Level Meter Calibration: false checked by B.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 78.7 1 73.9
2 77.8 2 73.6
3 76.8 3 74.7
4 76.0 4 74.1
5 76.7 5 74.3
Average of two highest actual noise levels = 78.3 dB(A) Average of two highest actual noise levels = 74.5 dB(A)