ORION II

BUS INDUSTRIES OF AMERICA, INC. Pdf Download PDF Report

Exterior Noise Test

Accelerating from Constant Speed

Date : 1994-06-06
Personnel : B.L.
Temperature (°F) : 75 Humidity (%) : 61
Wind Speed (mph) : 8 Wind Direction : WSW
Barometric Pressure (in.Hg) : 29.9
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: false checked by R.L.L.
Exterior Ambient Noise Level dB(A): 48.8

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 69.9 1 72.5
2 69.3 2 71.9
3 69.9 3 74.5
4 68.9 4 732.9
5 68.1 5 72.9
Average of two highest actual noise levels = 69.9 dB(A) Average of two highest actual noise levels = 403.7 dB(A)