49 CFR Part 213
§ 213.55 — Track alinement
FRA Part 213 · Subpart C — Track Geometry. Full current text with cross-references on BuildSpec.
§ 213.55 Track alinement. (a) Except as provided in paragraph (b) of this section, alinement may not deviate from uniformity more than the amount prescribed in the following table: Class of track Tangent track Curved track The deviation of the mid-offset from a 62-foot line 1 may not be more than—(inches) The deviation of the mid-ordinate from a 31-foot chord 2 may not be more than—(inches) The deviation of the mid-ordinate from a 62-foot chord 2 may not be more than—(inches) Class 1 track 5 3 N/A 5 Class 2 track 3 3 N/A 3 Class 3 track 13⁄4 11⁄4 13⁄4 Class 4 track 11⁄2 1 11⁄2 Class 5 track…
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