Opus / LFB-29

CHANCE COACH, INC. Pdf Download PDF Report

Exterior Noise Test

Accelerating from Constant Speed

Date : 2001-04-10
Personnel : S.C., E.D. & B.S.
Temperature (°F) : 48 Humidity (%) : 81
Wind Speed (mph) : 5 Wind Direction : ENE
Barometric Pressure (in.Hg) : 30.03
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.C.
Initial Sound Level Meter Calibration: false checked by S.C.
Exterior Ambient Noise Level dB(A): 47.7

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 78.8 1 82.3
2 78.4 2 82.4
3 78.6 3 82.5
4 78.2 4 82.2
5 78.5 5 82.6
Average of two highest actual noise levels = 78.7 dB(A) Average of two highest actual noise levels = 82.6 dB(A)