Concorde II

GLAVAL BUS/DIV. OF FOREST RIVER Pdf Download PDF Report

Exterior Noise Test

Accelerating from Constant Speed

Date : 2017-01-16
Personnel : S.R.,E.D. & C.S.
Temperature (°F) : 32 Humidity (%) : 86
Wind Speed (mph) : 1 Wind Direction : N
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 S.R.
Initial Sound Level Meter Calibration: true checked by S.R.
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 68.0 1 70.3
2 68.8 2 69.0
3 69.9 3 69.9
4 69.7 4 69.1
5 69.1 5 69.8
Average of two highest actual noise levels = 69.8 dB(A) Average of two highest actual noise levels = 70.1 dB(A)