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Double K, Inc. dba Hometown Trolley Pdf Download PDF Report

Exterior Noise Test

Accelerating from Standstill

Date : 2015-03-12
Personnel : T.S., S.R. & J.S.
Temperature (°F) : 41 Humidity (%) : 33
Wind Speed (mph) : 11 Wind Direction : N
Barometric Pressure (in.Hg) : 30.52
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
Exterior Ambient Noise Level dB(A): 46.8

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 77.1 1 77.5
2 75.9 2 78.4
3 77.0 3 78.0
4 77.8 4 77.9
5 78.0 5 78.0
Average of two highest actual noise levels = 77.9 dB(A) Average of two highest actual noise levels = 78.2 dB(A)