240 TRANSTECH

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Exterior Noise Test

Accelerating from Constant Speed

Date : 2005-06-14
Personnel : G.M., T.S. and S.C.
Temperature (°F) : 88 Humidity (%) : 55
Wind Speed (mph) : 10 Wind Direction : wsw
Barometric Pressure (in.Hg) : 29.8
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): 53.2

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 73.2 1 74.0
2 73.2 2 74.8
3 74.7 3 75.1
4 74.9 4 74.9
5 74.8 5 74.7
Average of two highest actual noise levels = 74.9 dB(A) Average of two highest actual noise levels = 75.0 dB(A)