prEN 13232-1

SLOVENSKI STANDARD
01-januar-2014
äHOH]QLãNHQDSUDYH=JRUQMLXVWURM.UHWQLFHLQNULåLãþDGHO'HILQLFLMH
Railway applications - Track - Switches and crossings for Vignole rails - Part 1:
Definitions
Bahnanwendungen - Oberbau - Weichen und Kreuzungen für Vignolschienen - Teil 1:
Definitionen
Applications ferroviaires - Voie - Appareils de voie pour rails Vignole - Partie 1:
Définitions
Ta slovenski standard je istoveten z: prEN 13232-1
ICS:
01.040.45 Železniška tehnika (Slovarji) Railway engineering
(Vocabularies)
45.080 7UDþQLFHLQåHOH]QLãNLGHOL Rails and railway
components
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
DRAFT
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2013
ICS 01.040.93; 93.100 Will supersede EN 13232-1:2003
English Version
Railway applications - Track - Switches and crossings for
Vignole rails - Part 1: Definitions
Applications ferroviaires - Voie - Appareils de voie pour rails Bahnanwendungen - Oberbau - Weichen und Kreuzungen
Vignole - Partie 1: Définitions für Vignolschienen - Teil 1: Definitionen
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 256.

If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations which
stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other language
made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

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Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United
Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2013 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 13232-1:2013: E
worldwide for CEN national Members.

Contents
Page
Foreword .3
1 Scope .4
2 General definitions .4
3 Definitions of special trackwork .9
4 Definitions of terms in turnouts and diamonds . 11
5 Definitions of terms in layouts . 19
6 Definitions of constituent parts of switch and crossing work . 22
7 Documents . 24

Foreword
This document (prEN 13232-1:2013) has been prepared by Technical Committee CEN/TC 256 “Railway
applications”, the secretariat of which is held by DIN.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 13232-1:2003.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EU Directive(s).
This series of standards “Railway applications – Track – Switches and crossings for Vignole rails” covers the
design and quality of switches and crossings in flat bottomed rail. The list of Parts is as follows:
 Part 1: Definitions
 Part 2: Requirements for geometric design
 Part 3: Requirements for wheel/rail interaction
 Part 4: Actuation, locking and detection
 Part 5: Switches
 Part 6: Fixed common and obtuse crossings
 Part 7: Crossings with moveable parts
 Part 8: Expansion devices
 Part 9 : Layouts
Part 1 contains terminology used throughout all parts of this series. Parts 2 to 4 contain basic design guides
and are applicable to all switch and crossing assemblies. Parts 5 to 8 deal with particular types of equipment
including their tolerances. These use Parts 1 to 4 as a basis. Part 9 defines the functional and geometric
dimensions and tolerances for layout assembly.
The following terms are used within to define the parties involved in using the EN as the technical basis for a
transaction:
Customer the Operator or User of the equipment, or the Purchaser of the equipment on the User's behalf.
Supplier the Body responsible for the use of the EN in response to the Customer's requirements.
1 Scope
This European Standard provides an accepted "terminology" for switch and crossing work. With the
assistance of diagrams, the various components are given definitions, and these specific names are regarded
as obligatory.
The definitions cover the constituent parts and design geometry of switch and crossing work, and include the
movement of switches. Additional terminology of a more specific nature will be defined in the relevant part of
the series.
The present definitions set out the terms most generally used for the geometrical form and the construction of
switches and crossings, omitting those of too special a nature.
2 General definitions
2.1
contact area
those parts of the rail ensuring the support and/or guidance, inside or outside, of a wheel. See Figure 5.
2.2
running table
upper surface of the head of a rail. See Figures 1 and 5.

Key
1 running table
Figure 1
2.3
running surface
curved surface defined by the longitudinal displacement of a straight line perpendicular to the centre-line of
the track and tangential to both running tables. See Figure 2.

Figure 2
2.4
running plane
flat plane tangential to the running surface at the considered point. See Figures 3 and 5.

Key
1 running plane
Figure 3
2.5
rail inclination
angle measured as a tangent (e.g. 1 in 20) between the normal to the running surface and the y-y axis of the
rail. See Figures 4 and 5.
Key
1 y-y axis
2 rail inclination
Figure 4
2.6
inclined track
where the axes of the two running rails are inclined inwards towards each other. See Figure 5.

Key
1 contact area  6 vertical track
2 running table  7 gauge reference plane
3 running plane  8 running edge
4 inclined rail  9 track gauge
5 rail twist
Figure 5
2.7
vertical track
where the axes of the two running rails are parallel, that is, have a rail inclination of zero. See Figure 5.
2.8
rail twist
change in inclination of the rail (e.g. from 1 in 20 to vertical). See Figure 5.
2.9
gauge reference plane
plane parallel to and below the running surface at a dimension "z". This dimension "z" is generally 14 mm.
This plane is used for all design work, machining, and measurements. See Figures 5 and 6.
a) b)
Figure 6
2.10
running edge
intersection of the gauge reference plane with the inside of the rail head. See Figure 5.
2.11
track gauge
distance between the corresponding running edges of the two rails. See Figure 5.
2.12
centre-line of track
line midway between the running edges on straight track, and half normal gauge inside the running edge of
the larger radius rail in curved track. See Figures 5 and 7.
2.13
high-side rail
on curved track, the rail with the larger radius, i.e. centre-line radius plus half of track gauge
2.14
low-side rail
on curved track, the rail with the smaller radius
2.15
gauge widening
intended increase in track gauge. The radius of the low-side rail is decreased, and the distance between the
centre-line of track and the low-side rail is increased, by the amount of gauge widening. See Figure 7.
Key
1 gauge widening on sharp curves
2 717,5 + gauge widening
3 717,5 + gauge widening
G track gauge/2
Figure 7
2.16
sleeper or bearer spacing
distance along the rails between the centre-lines of adjacent sleepers or bearers
2.17
cant (superelevation)
difference in height, relative to the horizontal, of the two rails of one track at a particular location, measured at
the centrelines of the heads of the rails. See Figure 8.

Key
1 horizontal
2 cant (superelevation)
Figure 8
2.18
equilibrium cant
cant for which at a particular stated speed the resultant of the load of vehicle and the centrifugal force is
perpendicular to the running plane
2.19
cant deficiency
difference between the applied cant on the track and the equilibrium cant for the vehicle at the particular
stated speed
3 Definitions of special trackwork
3.1
switch and crossing work
trackwork ensuring the support and guidance of a vehicle along any given route among various diverging or
intersecting tracks. The term (switch and crossing work) is amplified to include certain items having other
functions (for example, expansion devices).
Note 1 to entry: Switches are in some circumstances described as points - either word is considered acceptable.
(English version only)
All sketches represent the running edges. All turnouts are viewed from the switch toe (see 4.2.1).
3.2
turnout
layout permitting the passage of rolling stock between two tracks and one common track. See Figure 9.

Figure 9
3.3
diamond crossing
layout permitting the passage of rolling stock on intersecting tracks. See Figure 10.
Figure 10
3.4
interlaced track
layout permitting the passage of rolling stock between two tracks either of different track gauge or not, to a
common section with 4 rails. See Figure 11.

Figure 11
3.5
mixed gauge turnout
layout permitting the passage of rolling stock between two tracks of different track gauge to a common section
with 3 rails. See Figure 12.
Figure 12
3.6
trap point
layout permitting the derailment of rolling stock to ensure for example protection of an adjacent track or
structure. See Figure 13.
Figure 13
3.7
adjustment switch (expansion joint)
device which permits longitudinal relative rail movement of two adjacent rails, while maintaining correct
guidance and support. See Figure 14.

Figure 14
4 Definitions of terms in turnouts and diamonds
4.1 Track designations
The following definitions apply even when the appearance of the layout is curved.
4.1.1
main line
in the basic design the straight track is called the "main" line. See Figure 15.
Key
1 branch line
2 main line
Figure 15
4.1.2
branch line (turnout line)
in the basic design, the curved track is called the "branch" or "turnout" line. See Figure 15.
4.2
turnout designations
turnouts are designated by the symbols:
RH diverging to the right
LH diverging to the left
S symmetrical (or equal split)
The type of turnout depends upon the "set" of the switches, and not upon the geometry of the track layout.
The "set" is defined as the bend in the stock rail at the switch toe applying to the branch or turnout line.
The diverging track (to left or right) is always the track with the set in the stock rail, or where no set is used,
the track with the sharper radius.
4.2.1
diverging turnout
when the branch line diverged to the right of the main line, it is a right hand turnout. See Figure 16.

Key
1 main line
2 branch line
Figure 16
When the branch line diverged to the left of the main line, it is a left-hand turnout. See Figure 17.

Key
1 main line
2 branch line
Figure 17
For curved turnouts see 6.6.3.
4.2.2
equal split turnout
when the two tracks diverge symmetrically from the common track. The machining of each switch rail will be
equal, as will the horizontal set (if any) of each stock rail (see EN 13232-5). See Figure 18.

Figure 18
4.2.3
three-throw or tandem turnout
junction between two tracks and a common track. The different types are designated:
S3 3 symmetrical tracks (three-throw)
RR 3 asymmetrical tracks of which two diverge to the right
LL 3 asymmetrical tracks of which two diverge to the left
RL 3 asymmetrical tracks with first diverging track to the right and second diverging track to the left
LR 3 asymmetrical tracks with first diverging track to the left and second diverging track to the right
oSIST prEN 13232-1:
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