Concorde II

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

Exterior Noise Test

Accelerating from Standstill

Date : 2017-01-16
Personnel : S.R.,E.D. & C.S.
Temperature (°F) : 32 Humidity (%) : 86
Wind Speed (mph) : Calm 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): 41.4

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 68.7 1 69.6
2 70.2 2 70.0
3 69.3 3 70.0
4 69.1 4 69.7
5 69.5 5 69.9
Average of two highest actual noise levels = 69.9 dB(A) Average of two highest actual noise levels = 70.0 dB(A)