2014

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

Exterior Noise Test

Accelerating from Standstill

Date : 2014-07-03
Personnel : S.R. & T.S.
Temperature (°F) : 76 Humidity (%) : 78
Wind Speed (mph) : 11 Wind Direction : N
Barometric Pressure (in.Hg) : 29.99
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): 42.9

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 75.6 1 77.5
2 76.2 2 77.8
3 75.5 3 77.7
4 74.4 4 78.8
5 74.3 5 77.2
Average of two highest actual noise levels = 75.9 dB(A) Average of two highest actual noise levels = 78.3 dB(A)