2010 CNG Hybrid-SOM236

ARBOC MOBILITY, LLC Pdf Download PDF Report

Exterior Noise Test

Accelerating from Constant Speed

Date : 2010-11-09
Personnel : B.G., T.S. & S.C.
Temperature (°F) : 56 Humidity (%) : 60
Wind Speed (mph) : Wind Direction :
Barometric Pressure (in.Hg) : 30.12
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 S.C.
Initial Sound Level Meter Calibration: true checked by S.C.
Exterior Ambient Noise Level dB(A): 37.2

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 73.5 1 75.3
2 73.9 2 75.3
3 74.6 3 75.0
4 73.8 4 73.5
5 74.2 5 75.4
Average of two highest actual noise levels = 74.4 dB(A) Average of two highest actual noise levels = 75.4 dB(A)