ORION II

BUS INDUSTRIES OF AMERICA, INC. Pdf Download PDF Report

Exterior Noise Test

Accelerating from Constant Speed

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 RL
Initial Sound Level Meter Calibration: false checked by BL
Exterior Ambient Noise Level dB(A): 50.9

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 76.4 1 79.92
2 73.7 2 78.7
3 74.6 3 78.8
4 74.7 4
5 5
Average of two highest actual noise levels = 75.6 dB(A) Average of two highest actual noise levels = 79.4 dB(A)