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Electronic Code of Federal Regulations

e-CFR data is current as of December 11, 2019

Title 49Subtitle BChapter IIPart 213Subpart G → §213.332


Title 49: Transportation
PART 213—TRACK SAFETY STANDARDS
Subpart G—Train Operations at Track Classes 6 and Higher


§213.332   Combined track alinement and surface deviations.

(a) This section applies to any curved track where operations are conducted at a qualified cant deficiency, Eu, greater than 5 inches, and to all Class 9 track, either curved or tangent.

(b) For the conditions defined in paragraph (a) of this section, the combination of alinement and surface deviations for the same chord length on the outside rail in a curve and on any of the two rails of a tangent section, as measured by a TGMS, shall comply with the following formula:

eCFR graphic er13mr13.013.gif

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Where—

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

AL = allowable alinement limit as per §213.327(c) (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 §213.331(a) and §213.331(b) (always positive) for the class of track.

eCFR graphic er13mr13.014.gif

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[78 FR 16107, Mar. 13, 2013]

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