ORION II

BUS INDUSTRIES OF AMERICA, INC. Pdf Download PDF Report

Exterior Noise Test

Accelerating from Standstill

Date : 1992-03-31
Personnel : BL, RH and BR
Temperature (°F) : 42 Humidity (%) : 46
Wind Speed (mph) : 7 Wind Direction : nw
Barometric Pressure (in.Hg) : 29.92
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 BL
Initial Sound Level Meter Calibration: true checked by bl
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 70.1 1 77.8
2 71.4 2 76.8
3 71.6 3 76.6
4 71.4 4 76.3
5 5
Average of two highest actual noise levels = 71.5 dB(A) Average of two highest actual noise levels = 77.3 dB(A)