BS EN 13803-2 : 2006

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviations
5 General requirements
6 Principles for the assessment of abrupt changes of
  cant deficiency at abrupt changes in curvature
7 Circular curves without transition curves
8 Combinations of horizontal curves
9 Alignment rules and parameters for designing switch
  and crossing layouts
Annex A (informative) - General design considerations
Annex B (informative) - The installation of switch and
        crossing layouts
Annex C (normative) - Rules for converting parameter
        values for track gauges wider than 1435 mm
Annex D (informative) - Limits of lateral acceleration
Annex E (informative) - The principle of virtual transition
Annex F (informative) - A method for calculating the maximum
        permissible speed at the toe of a non-tangential
        switch
Annex G (informative) - Constraints and risks associated
        with the use of maximum (or minimum) limiting values
Annex H (informative) - The maximum permissible speed of
        tilting body trains over switch and crossing layouts
Annex ZA (informative) - Relationship between this European
         Standard and the Essential Requirements of EU
         Directive 2008/57/EC
Bibliography

Defines the rules and values for the track alignment design parameters used to determine the maximum operating speeds over tracks with abrupt changes in curvature and, consequently, abrupt changes of cant deficiency.