RAMPVAN PT

INDEPENDENT MOBILITY SYSTEMS, INC. Pdf Download PDF Report

Exterior Noise Test

Accelerating from Standstill

Date : 2001-12-06
Personnel : S.C., B.S. & T.S.
Temperature (°F) : 54 Humidity (%) : 76
Wind Speed (mph) : 10 Wind Direction : NW
Barometric Pressure (in.Hg) : 30.15
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: true checked by S.C.
Exterior Ambient Noise Level dB(A): 52.3

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 68.4 1 66.2
2 66.9 2 66.2
3 67.3 3 65.8
4 66.6 4 65.7
5 64.7 5 65.4
Average of two highest actual noise levels = 67.9 dB(A) Average of two highest actual noise levels = 66.2 dB(A)