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Electronic Code of Federal Regulations
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e-CFR data is current as of December 5, 2019
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Title 49: Transportation
PART 213—TRACK SAFETY STANDARDS
Subpart C—Track Geometry
§213.59 Elevation of curved track; runoff.(a) If a curve is elevated, the full elevation shall be provided throughout the curve, unless physical conditions do not permit. If elevation runoff occurs in a curve, the actual minimum elevation shall be used in computing the maximum allowable posted timetable operating speed for that curve under §213.57(b). (b) Elevation runoff shall be at a uniform rate, within the limits of track surface deviation prescribed in §213.63, and it shall extend at least the full length of the spirals. If physical conditions do not permit a spiral long enough to accommodate the minimum length of runoff, part of the runoff may be on tangent track.
[63 FR 34029, June 22, 1998, as amended at 78 FR 16101, Mar. 13, 2013]
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