PREN 15273-3 : DRAFT 2005

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviations
   4.1 Symbols and abbreviations
   4.2 Subscripts
   4.3 Notations
5 Rules for determination of the limit gauge
   5.1 General
   5.2 Transverse displacements
   5.3 Vertical displacements
6 Determination of the nominal gauge
   6.1 Introduction
   6.2 Determination
7 Determination of the distance between track centers
   7.1 General
   7.2 Determination of the limit distance between track
        centres
   7.3 Determination of the nominal distance between
        track centres
8 Elements of variable layout
   8.1 Introduction
   8.2 Layout transition
   8.4 Rules of gauge determination for a line electrified
        by an overhead contact line
   8.5 Determination of the mechanical gauge for the free
        passage of the pantograph
   8.6 Electrical gauge of pantographs
9 Overhead contact wire
10 Rules for building platform edges
   10.1 General
   10.2 Gaps b[lac] and h[lac]
   10.3 Installation dimensions
11 Tilting body vehicles
   11.1 General
   11.2 Transition curves
   11.3 Downgraded modes
12 Track accessories
   12.1 Introduction
   12.2 Contact ramps
   12.3 Active check-rails
   12.4 Planking of level crossings
   12.5 Electrical third rail
   12.6 Rail brakes
13 Determination of structure gauges
   13.1 Selection of the gauge
   13.2 Concepts of a uniform gauge
14 Verification and maintenance of the gauge
   14.1 Structure gauge
   14.2 Distance between track centres
15 Guide for determination of a new gauge from an existing
   infrastructure
16 Dynamic gauge
Annex A (normative) Calculation methodology of the
                    horizontal margin of the structure
                    gauge
      A.1 Scope
      A.2 Formulation
      A.3 Recommendations for coefficients
      A.4
      A.5 Calculation examples
Annex B (normative) Interoperable gauges G1, GA, GB, GB+ and GC
      B.1 General
      B.2 Upper parts - h > 400 mm
      B.3 Lower parts (h <= 0,400 m)
      B.4 Lower parts (h <= 0,400 m) - Tracks for rail brakes
      B.5 Gauge for the free passage of the pantographs
Annex C (normative) Reduced interoperability gauges
      C.1 Gauge G2
      C.2 Gauges GB1 and GB
      C.3 Gauges CPb, CPb+ and CPc
      C.4 Gauge B-M6
      C.5 Gauge F 3.3
Annex D (informative) Example of calculation to determination
                      the gauge on a switch and crossing
      D.1 Introduction
      D.2 Methodology
      D.3 Gauge widening in a curve
      D.4 Quasi-static effect
      D.5 Gauge widening on a switch and crossing
Annex E (normative) Determination of the vehicle characteristics
      E.1 Introduction
      E.2 Methodology
      E.3 Calculation example

Defines the various profiles needed to verify and maintain the various structures near the structure gauge. Lists the various phenomena to be taken into account to determine the structure gauge.