CTS

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Exterior Noise Test

Accelerating from Standstill

Date : 1998-10-13
Personnel : B.L. and R.H.
Temperature (°F) : 60 Humidity (%) : 70
Wind Speed (mph) : 5 Wind Direction : SW
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 R.L.L.
Initial Sound Level Meter Calibration: true checked by R.L.L.
Exterior Ambient Noise Level dB(A): 45.5

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 71.8 1 73.4
2 71.9 2 73.2
3 71.1 3 73.2
4 72.1 4 73.3
5 72.1 5 73.3
Average of two highest actual noise levels = 72.1 dB(A) Average of two highest actual noise levels = 73.4 dB(A)