I.S. EN 13803:2017

National Foreword
European foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviations
5 General
6 Limits for 1435 mm gauge
Annex A (normative) - Rules for converting parameter
        values for track gauges wider than 1435 mm
        main body of the standard)
Annex B (normative) - Track alignment design parameter
        limits for track gauges wider than 1435 mm
Annex C (informative) - Supplementary information about
        shape and length of transition curves
Annex D (informative) - Constraints and risks associated
        with the use of exceptional limits
Annex E (informative) - Evaluation of conditions at the toe
        of a switch
Annex F (informative) - Design considerations for switch
        and crossing units
Annex G (informative) - Examples of applications
Annex H (informative) - Examples of local limits for cant
        Deficiency
Annex I (informative) - Considerations regarding cant
        deficiency and cant excess
Annex J (informative) - Passenger comfort on curves
Annex K (normative) - Sign rules for calculation of Delta[D],
        Delta[I] and Delta[P]
Annex L (informative) - Length of constant cant between
        two linear cant transitions L[i]
Annex M (informative) - The principle of virtual transition
Annex N (normative) - Lengths of intermediate elements
        L[c] to prevent buffer locking
Annex O (informative) - Considerations for track gradients
Annex ZA (informative) - Relationship between this European
         Standard and the Essential Requirements of
         EU Directive 2008/57/EC
Bibliography

Defines rules and limits for track alignment design parameters, including alignments within switches and crossings.