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Electronic Code of Federal Regulations

e-CFR data is current as of December 9, 2019

Title 49Subtitle BChapter IIPart 213Subpart C → §213.65


Title 49: Transportation
PART 213—TRACK SAFETY STANDARDS
Subpart C—Track Geometry


§213.65   Combined track alinement and surface deviations.

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:

eCFR graphic er13mr13.008.gif

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Where—

Am = measured alinement deviation from uniformity (outward is positive, inward is negative).

AL = allowable alinement limit as per §213.55(b) (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(b) (always positive) for the class of track.

eCFR graphic er13mr13.009.gif

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[78 FR 16102, Mar. 13, 2013]

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