Vicinity 30 Foot

Grande West Transportation Inc. Pdf Download PDF Report

Exterior Noise Test

Accelerating from Constant Speed

Date : 2016-05-11
Personnel : T.S., S.R. & M.R.
Temperature (°F) : 57 Humidity (%) : 71
Wind Speed (mph) : 5 Wind Direction : SSE
Barometric Pressure (in.Hg) : 30.2
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
Initial Sound Level Meter Calibration: true checked by
Exterior Ambient Noise Level dB(A): 40.5

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 71.7 1 71.3
2 71.0 2 71.4
3 72.3 3 69.9
4 70.4 4 71.3
5 71.1 5 70.7
Average of two highest actual noise levels = 72.0 dB(A) Average of two highest actual noise levels = 71.4 dB(A)