49 C.F.R. § 213.65
Current through March 31, 2024
On any curved track where operations are conducted at a qualified cant deficiency, Eu , greater than 5 inches, the combination of alinement and surface deviations for the same chord length on the outside rail in the curve, as measured by a TGMS, shall comply with the following formula:
Where-
Am = measured alinement deviation from uniformity (outward is positive, inward is negative).
AL = allowable alinement limit as per §213.55 (always positive) for the class of track.
Sm = measured profile deviation from uniformity (down is positive, up is negative).
SL = allowable profile limit as per §213.63 (always positive) for the class of track.
49 C.F.R. §213.65