UNI EN 13231-2 : 2007

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Acceptance of works on switches and crossings
  4.1 General
  4.2 Acceptance deadlines
  4.3 Acceptance measurements and checks
  4.4 Acceptance documents
  4.5 Relative track geometry
      4.5.1 Tolerances
      4.5.2 Parameters
  4.6 Absolute track position
      4.6.1 Tolerances for absolute vertical position of
             the track
      4.6.2 Tolerances for absolute lateral position of
             the track
  4.7 Other parameters and verifications
      4.7.1 Check rail to check rail gauge
      4.7.2 Squareness of switches
      4.7.3 Longitudinal relationship of switch tip to
             stock rail
      4.7.4 Longitudinal position of the switch and
             crossing to the design position
      4.7.5 Absolute vertical position of the switch and
             crossing layout
      4.7.6 Absolute lateral position of the switch and
             crossing layout
      4.7.7 Check of the lead offsets
      4.7.8 Bearer position
      4.7.9 Voiding of bearers
      4.7.10 Fasteners
      4.7.11 Welds
      4.7.12 Fishplated joints
      4.7.13 Insulated joints
      4.7.14 Functional check
      4.7.15 Expansion devices
  4.8 Acceptance responsibilities and acceptance form
  4.9 Warranty
Annex A (informative) Acceptance responsibilities
Annex B (informative) Example of an acceptance form

Specifies the requirements and tolerances for the acceptance of track work associated with switch and crossing layouts (also includes work on expansion devices) on ballasted track for 1435 mm and wider gauge railways.