SN EN 13232-3+A1:2011

Foreword
1 Scope
2 Normative references
3 Introduction
  3.1 General
  3.2 Wheel and track dimensions
  3.3 Wheel profiles
  3.4 Wheelsets
  3.5 Rail and track
  3.6 Tolerances and wear
  3.7 Contact zone
      3.7.1 Contact profile
      3.7.2 Contact danger zone
      3.7.3 Flangeway depth
4 Guidance principles
  4.1 Guard and check Rails
  4.2 Wheelset guidance
      4.2.1 Angle of attack
      4.2.2 Flangeway
      4.2.3 Gauge widening
      4.2.4 Check rail and common crossing nose
      4.2.5 Obtuse Crossings
  4.3 Transitional guidance
  4.4 Entry flares
5 Wheel load transfer
  5.1 Sufficiency of bearing area
  5.2 Transfer surfaces
  5.3 Method of assessment
6 Insufficient wheel support or guidance
  6.1 Common crossings
  6.2 Obtuse crossings
  6.3 Movable crossings
Bibliography

This part of this European Standard specifies: - characterisation of wheel and track dimensions; - geometric design principles for wheel guidance; - design principles for wheel load transfer; - deciding whether movable crossings are needed.