05-502

BUS INDUSTRIES OF AMERICA, INC. Pdf Download PDF Report

Exterior Noise Test

Accelerating from Constant Speed

Date : 1992-06-23
Personnel : D.L., B.L., & R.H.
Temperature (°F) : 72 Humidity (%) : 48
Wind Speed (mph) : 6 Wind Direction : NW
Barometric Pressure (in.Hg) : 28.65
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 D.L.
Initial Sound Level Meter Calibration: false checked by B.L.
Exterior Ambient Noise Level dB(A): 39.0

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 78.9 1 78.0
2 77.0 2 78.2
3 78.4 3 78.6
4 4
5 5
Average of two highest actual noise levels = 78.7 dB(A) Average of two highest actual noise levels = 78.4 dB(A)