42.5-BRT.01

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Exterior Noise Test

Accelerating from Constant Speed

Date : 2008-04-17
Personnel : BS, TS and SC
Temperature (°F) : 70 Humidity (%) : 24
Wind Speed (mph) : 5 Wind Direction : sse
Barometric Pressure (in.Hg) : 30.15
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 SC
Initial Sound Level Meter Calibration: false checked by SC
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 76.8 1 82.0
2 76.8 2 82.1
3 75.8 3 80.6
4 76.4 4 82.1
5 76.7 5 82.0
Average of two highest actual noise levels = 76.8 dB(A) Average of two highest actual noise levels = 82.1 dB(A)