SLC-938

Stallion Bus Industries, LLC Pdf Download PDF Report

Exterior Noise Test

Accelerating from Standstill

Date : 2008-11-06
Personnel : T.W. & S.C.
Temperature (°F) : 66 Humidity (%) : 60
Wind Speed (mph) : Wind Direction :
Barometric Pressure (in.Hg) : 30.03
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): 42.1

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 84.2 1 89.6
2 82.8 2 89.6
3 84.1 3 91.3
4 83.4 4 89.9
5 84.0 5 89.9
Average of two highest actual noise levels = 84.2 dB(A) Average of two highest actual noise levels = 90.6 dB(A)