VINTAGE TROLLEY

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Exterior Noise Test

Accelerating from Constant Speed

Date : 2002-02-08
Personnel : S.C., B.S., & E.D.
Temperature (°F) : 40 Humidity (%) : 45
Wind Speed (mph) : 8 Wind Direction : W
Barometric Pressure (in.Hg) : 30.14
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): 48.7

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 60.6 1 60.6
2 60.7 2 60.2
3 60.5 3 60.8
4 60.7 4 60.7
5 60.7 5 60.6
Average of two highest actual noise levels = 60.7 dB(A) Average of two highest actual noise levels = 60.8 dB(A)