40/102TB M11

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Exterior Noise Test

Accelerating from Standstill

Date : 1997-09-05
Personnel : B.L., S.C. and B.B.
Temperature (°F) : 64 Humidity (%) : 63
Wind Speed (mph) : 8 Wind Direction : wsw
Barometric Pressure (in.Hg) : 30.22
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): 46.9

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 73.7 1 75.0
2 74.2 2 75.1
3 73.6 3 75.4
4 73.0 4 75.1
5 73.1 5 75.4
Average of two highest actual noise levels = 74.0 dB(A) Average of two highest actual noise levels = 75.4 dB(A)