Analytical Tool for Track Component Response Measurement (I-TRACK), Vol. 2, Ch. 9 Federal Railroad Administration, (FRA). 2014. Analytical Tool for Track Component Response Measurement (I-TRACK), Vol. 2, Ch. 9, DOT/FRA/ORD-14/05. U.S. Department of Transportation, Federal Railroad Administration, Washington, DC. Files Analytical Tool for Track Component Response Measurement (I-TRACK), Vol. 2, Ch. 9 - Full Text (PDF) Categories Infrastructure