[Code of Federal Regulations]

[Title 49, Volume 4]

[Revised as of October 1, 2006]

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

[CITE: 49CFR213.55]



[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.  213.55  Alinement.



    Alinement may not deviate from uniformity more than the amount 

prescribed in the following table:



----------------------------------------------------------------------------------------------------------------

                                                           Tangent track                Curved track

                                                        --------------------------------------------------------

                                                          The deviation of   The deviation of   The deviation of

                                                           the mid-offset    the mid-ordinate   the mid-ordinate

                     Class of track                        from a 62-foot     from a 31-foot     from a 62-foot

                                                          line \1\ may not  chord \2\ may not  chord \2\ may not

                                                           be more than--     be more than--     be more than--

                                                              (inches)           (inches)           (inches)

----------------------------------------------------------------------------------------------------------------

Class 1 track..........................................                  5            \3\ N/A                  5

Class 2 track..........................................                  3            \3\ N/A                  3

Class 3 track..........................................             1\3/4\             1\1/4\             1\3/4\

Class 4 track..........................................             1\1/2\                  1             1\1/2\

Class 5 track..........................................              \3/4\              \1/2\              \5/8\

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\1\ The ends of the line shall be at points on the gage side of the line rail, five-eighths of an inch below the

  top of the railhead. Either rail may be used as the line rail, however, the same rail shall be used for the

  full length of that tangential segment of track.

\2\ The ends of the chord shall be at points on the gage side of the outer rail, five-eighths of an inch below

  the top of the railhead.

\3\ N/A--Not Applicable.