[Code of Federal Regulations]

[Title 49, Volume 4]

[Revised as of October 1, 2005]

From the U.S. Government Printing Office via GPO Access

[CITE: 49CFR213.59]



[Page 100]

 

                        TITLE 49--TRANSPORTATION

 

       CHAPTER II--FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF 

                             TRANSPORTATION

 

PART 213_TRACK SAFETY STANDARDS--Table of Contents

 

                        Subpart C_Track Geometry

 

Sec. 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 operating speed for that 

curve under Sec. 213.57(b).

    (b) Elevation runoff shall be at a uniform rate, within the limits 

of track surface deviation prescribed in Sec. 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.