40102 (METRO)

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Exterior Noise Test

Accelerating from Standstill

Date : 1993-03-26
Personnel : B.L., S.C. and R.H.
Temperature (°F) : 41 Humidity (%) : 90
Wind Speed (mph) : 4 Wind Direction : ne
Barometric Pressure (in.Hg) : 30.25
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 RL
Initial Sound Level Meter Calibration: true checked by RL
Exterior Ambient Noise Level dB(A): 39.4

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 78.3 1 83.0
2 78.2 2 82.8
3 78.0 3 83.3
4 78.9 4 82.7
5 78.0 5 82.8
Average of two highest actual noise levels = 78.6 dB(A) Average of two highest actual noise levels = 83.2 dB(A)