Vicinity 30 Foot

Grande West Transportation Inc. Pdf Download PDF Report

Exterior Noise Test

Accelerating from Standstill

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): 40.9

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 71.6 1 70.8
2 70.5 2 70.2
3 71.0 3 69.4
4 70.1 4 69.5
5 70.8 5 70.0
Average of two highest actual noise levels = 71.3 dB(A) Average of two highest actual noise levels = 70.5 dB(A)