prEN 15273-1:2018

SLOVENSKI STANDARD
01-februar-2019
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SURILORY
Railway applications - Gauges - Part 1: Generic explanations and methods of gauging
Bahnanwendungen - Begrenzungslinien - Teil 1: Grundprinzipien und Methoden der
Lichtraumbestimmung
Applications ferroviaires - Gabarits - Partie 1 : Explications de base et méthodes de
détermination du gabarit
Ta slovenski standard je istoveten z: prEN 15273-1:2018
ICS:
45.060.01 Železniška vozila na splošno Railway rolling stock in
general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
EUROPEAN STANDARD
prEN 15273-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2018
ICS 45.020; 45.060.01 Will supersede EN 15273-1:2013+A1:2016
English Version
Railway applications - Gauges - Part 1: Generic
explanations and methods of gauging
Applications ferroviaires - Gabarits - Partie 1 : Bahnanwendungen - Lichtraum - Teil 1: Teil 1:
Explications de base et méthodes de détermination du Grundprinzipien und Methoden der
gabarit Lichtraumbestimmung
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.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, 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: Rue de la Science 23, B-1040 Brussels
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 15273-1:2018:2018 E
worldwide for CEN national Members.

Contents
Page
European foreword . 5
Introduction . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 7
4 Symbols and abbreviations . 18
4.1 Common symbols . 18
4.2 Specific symbols for absolute and comparative gauging processes . 30
5 Approaches to gauging . 34
5.1 Railway gauging processes . 34
5.2 How to use prEN 15273 . 34
5.3 Choosing a gauge or a gauging process . 36
5.3.1 Compatibility level between rolling stock and infrastructures . 36
5.3.2 Defined gauges . 36
5.3.3 Absolute gauging process . 37
5.3.4 Comparative gauging process . 37
6 Elements involved in a gauging process . 37
6.1 General diagram in the lateral direction . 37
6.2 General diagram in the vertical direction . 38
7 Gauges and gauging process . 40
7.1 Defined gauges by calculation . 40
7.1.1 Basic elements of the defined gauges . 40
7.1.2 Reference profile and associated rules . 41
7.2 Absolute and comparative gauging process . 43
7.2.1 General . 43
7.2.2 Absolute gauging process . 43
7.2.3 Comparative gauging process . 47
Annex A (normative) Specific considerations for the classic calculations of defined gauges . 49
A.1 In the lateral direction . 49
A.1.1 Geometric overthrow due to the bogie . 49
A.1.2 Geometric overthrow due to the vehicle body . 49
A.1.3 Clearance between wheelsets and body . 50
A.1.4 Clearance between the wheelsets and the track . 50
A.1.5 Roll . 51
A.1.6 Lateral displacement of the track . 58
A.2 In the vertical direction . 58
A.2.1 Geometric overthrow . 58
Annex B (normative) Defined kinematic gauges . 60
B.1 General . 60
B.2 In the lateral direction . 61
B.2.1 Inside the kinematic reference profile . 61
B.2.2 Outside the kinematic reference profile lateral quasi-static roll . 63
B.3 In the vertical direction . 65
B.3.1 Inside the kinematic reference profile . 65
B.3.2 Outside the kinematic reference profile . 66
B.4 Pantograph gauge . 67
B.4.1 General principle . 67
B.4.2 In the lateral direction . 67
B.4.3 In the vertical direction . 70
B.5 Bottom parts . 73
B.6 Wheel and rail area . 74
B.6.1 General . 74
B.6.2 Zone swept by the wheel . 75
B.6.3 Position of the check-rails . 77
B.7 Contact ramps . 77
B.7.1 General . 77
B.7.2 For the infrastructure . 78
B.7.3 For the rolling stock . 78
B.8 Stopping devices . 79
B.9 Marshalling hump . 80
B.9.1 General convention . 80
B.9.2 Track brakes installed close to the marshalling humps. 80
B.10 Access to ferries . 84
B.10.1 General Principle . 84
B.10.2 Passing over link spans onto ferries . 84
Annex C (normative) Defined static gauges . 85
C.1 General . 85
C.2 In the lateral direction . 85
C.2.1 Inside the static reference profile . 85
C.2.2 Outside the static reference profile . 86
C.3 In the vertical direction . 86
C.3.1 Inside the static reference profile . 86
Annex D (normative) Defined dynamic gauges. 88
D.1 General . 88
D.2 In the lateral direction . 90
D.2.1 Inside the dynamic reference profile . 90
D.2.2 Outside the dynamic reference profile . 90
D.3 In the vertical direction . 91
D.3.1 Inside the dynamic reference profile . 91
D.3.2 Outside the dynamic reference profile . 92
D.4 Pantograph area . 93
D.4.1 General principle . 93
D.4.2 In the lateral direction . 93
D.4.3 In the vertical direction . 94
D.5 Lower parts . 94
D.5.1 General . 94
D.5.2 Wheel and rail area . 95
D.5.3 Stopping devices . 95
D.5.4 Marshalling hump . 95
D.5.5 Access to ferries . 95
Annex E (normative) Description of the absolute gauging process. 97
E.1 Brief background . 97
E.2 Basic principles . 97
E.2.1 General . 97
E.2.2 Gauging compatibility . 98
E.2.3 Generic throw calculation for absolute and comparative process . 99
E.3 Elements of the gauging process . 101
E.3.1 Lateral direction . 101
E.3.2 Vertical direction . 102
E.3.3 Passing clearances (Clearance between vehicles on adjacent tracks) . 103
E.3.4 Clearance categories . 104
E.3.5 Electrical clearances . 105
E.3.6 Pantograph sway . 106
E.3.7 Electrification compatibility . 106
E.3.8 Cross level error . 108
Annex F (normative) A description of the comparative gauging process . 109
F.1 Background . 109
F.2 Basic principles . 109
F.2.1 General . 109
F.2.2 Gauging compatibility . 110
F.2.3 Computer simulation . 111
F.3 Gauging process . 111
F.3.1 Virtual route . 111
F.3.2 Swept envelope calculation . 111
F.3.3 Comparison of swept envelopes . 112
Annex G (informative) Compatibility between static and kinematic defined gauges . 113
Annex H (normative) Steps for access and egress – Location and gaps with platform . 116
H.1 General . 116
H.2 For the rolling stock . 116
H.2.1 Principles . 116
H.2.2 Location inside an area . 116
H.2.3 Maximum gaps . 118
H.2.4 Checking of horizontal location . 118
H.2.5 Horizontal location inside an area . 120
H.2.6 Maximum horizontal gap . 120
H.2.7 Checking of vertical location . 121
H.2.8 Vertical location inside an area . 121
H.2.9 Maximum vertical gap . 121
H.3 Conventional platform position . 121
H.3.1 General case . 121
H.3.2 For rolling stock dedicated to run on specific national infrastructure . 122
H.4 Conventional gaps . 124
Annex I (informative) A–deviations . 125
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of EU Directive 2008/57/EC aimed to be covered . 127

European foreword
This document (prEN 15273-1:2018) 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, together with prEN 15273-4:2018, will supersede EN 15273-1:2013+A1:2016.
This document has been prepared under a standardization request given to CEN by the European
Commission and the European Free Trade Association, and supports essential requirements of
EU Directive 2008/57/EC.
For relationship with EU Directive 2008/57/EC, see informative Annex ZA, which is an integral part of
this document.
EN 15273 series consists of the following parts:
— prEN 15273-1:2018, Generic explanations and methods of gauging gives the general explanations of
gauging and defines the sharing of the space between rolling stock and infrastructure;
— prEN 15273-2:2018, Rolling stock gives the rules for dimensioning vehicles;
— prEN 15273-3:2018, Infrastructure gives the rules for positioning the infrastructure;
— prEN 15273-4:2018, Catalogue of gauges and associated rules includes a non-exhaustive list of
reference profiles and parameters to be used by infrastructure and rolling stock;
— prCEN/TR 15273-5:2018, Background, explanation and worked examples.
— introduction of absolute and comparative gauging process in parts 1, 2, 3 and 5;
— specific rules given for each defined gauge in prEN 15273-2:2018 and prEN 15273-3:2018 are
replaced by a common general set of basic formulae applicable for all. The applicable reference
profile and the specific associated rules are given in part 4;
— a new prEN 15273-4 gives the catalogue of gauges and associated rules coming from EN 15273-
1:2013+A1:2016;
— a new prCEN/TR 15273-5:2018 gives background elements coming from EN 15273-
1:2013+A1:2016 and worked examples.
Introduction
The aim of this standard is to define the rules for the calculation and verification of the dimensions of
rolling stock and infrastructure from a gauging perspective.
This standard defines gauging processes taking into account the relative movements between rolling
stock and infrastructure as well as the necessary margins or clearances.
with the following parts:
— Part 2: Rolling stock;
— Part 3: Infrastructure gauges;
— Part 4: Catalogue of gauges and associated rules;
— Part 5: Background, explanation and worked examples.
1 Scope
The gauges and processes included in this document have been developed for application on mainline
railway networks using various track gauges. Other networks such as urban and suburban may apply
the gauge rules defined in this standard but are outside of its scope.
This document contains
— the definitions and symbols for all prEN 15273 documents,
— the general explanation of various elements and phenomena affecting railway gauging,
— the general explanation of various calculation methods and processes applicable to railway,
— gauging that allow the dimensioning of the rolling stock and the infrastructure.
NOTE The rules given in this standard are not applicable to the gauges “S” and “T” referred to in 4.2.3.1. (7) &
(8) for track gauge 1 520 mm of the merged TSI Loc and Pass ( Commission Regulation N° 1302/2014 of 18
November 2014).
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 14067-2, Railway applications — Aerodynamics — Part 2: Aerodynamics on open track
EN 14067-3, Railway applications — Aerodynamics — Part 3: Aerodynamics in tunnels
prEN 15273-2:2018, Railway applications — Gauges — Part 2: Rolling stock
prEN 15273-3:2018, Railway applications — Gauges — Part 3: Infrastructure
prEN 15273-4:2018, Railway applications — Gauges — Part 4: Catalogue of gauges
prCEN/TR 15273-5:2018, Railway applications — Gauges — Part 5: Background, complementary
information and worked examples
EN 15313, Railway applications — In-service wheelset operation requirements — In-service and off-
vehicle wheelset maintenance
EN 15663:2017, Railway applications — Vehicle reference masses
EN 50367, Railway applications — Current collection systems — Technical criteria for the interaction
between pantograph and overhead line (to achieve free access)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at http://www.iso.org/obp
3.1
gauging process
process by means of which the dimensional compatibility of rolling stock and infrastructure is
determined
3.2
running plane
plane tangential to the running surface (see Figure 1)

Key
1 running plane
Figure 1 — Running plane
3.3
normal co-ordinates
co-ordinates defined in a plane normal to the longitudinal centreline of the rails in nominal position on
a theoretically perfect track
Note 1 to entry: One of these axes is the intersection of the normal plane with the running plane. The other axis,
commonly referred to as vertical axis, is perpendicular to the running plane. For calculation purposes, the vertical
axis is used as a common reference for infrastructure and rolling stock (see Figure 2).

Key
1 running plane (X and Y)
2 centreline of the vehicle and of the track
Figure 2 — Reference axes
3.4
effective track position
used during the absolute gauge process, it represents a position that the track could credibly occupy in
relation to structures or an adjacent track at some points within its maintenance cycle
3.5
reference vehicles
theoretical or actual vehicles, the parameters of which are used to establish the rules associated with a
reference profile to obtain a gauge
3.6
comparator vehicle
existing rolling stock already compatible and operating on a specified route to be used for the
comparative gauging process
3.7
vehicle load states
load states as defined in EN 15663:2017
3.8
defined gauge
set including a reference profile and its associated calculation rules allowing definition of the outer
dimensions of the rolling stock and the space to be cleared by the infrastructure
Note 1 to entry: According to the calculation method implemented, the gauge will be a “static, kinematic or
dynamic one.
3.9
reference profile
CR
virtual line related to the normal co-ordinates, specific to each defined gauge, representing a cross-
section outline used as a common basis to work out the sizing rules of the infrastructure and of the
rolling stock
3.10
upper part, lower part, bottom line
limit between the upper part and lower part of the reference profile is defined for each gauge in
prEN 15273-4:2018
Note 1 to entry: The bottom line defines the horizontal limit of the lower part close to the running plane.
3.11
geometric overthrow
dg
distance in direction Y or Z between the track and the vehicle in a curve
Note 1 to entry: See details in Figures A.2 ; E.2 for horizontal curve and A.7 for vertical curve.
3.12
associated rules
set of rules associated with each reference profile in order to size the infrastructure or rolling stock
3.13
lateral projection (“saillie”)
S
sum of these two values:
— S , agreed between infrastructure and rolling stock based on the lateral overthrow of so-called
R
“reference vehicles”;
— S , is the widening of the track gauge
l
Note 1 to entry: See prCEN/TR 15273-5 for more explanations.
3.14
vertical projection (“saillie”)
S
v
value agreed between infrastructure and rolling stock based on the vertical overthrow of so-called
“reference vehicles” outside the reference profile
3.15
absolute gauge
gauging process taking into account obstacles and a profile determined at a specific site
3.16
absolute gauging process
set of rules allowing the comparison of the swept envelope of a vehicle with infrastructure profiles on a
given route
3.17
comparative gauging process
set of rules allowing the comparison of the swept envelopes of a candidate vehicle to a comparator
vehicle in order to assess route compatibility
3.18
swept envelope
cross sections perpendicular to the running plane encompassing all the points swept by the vehicle
under consideration with its dynamic displacements in any possible position combined with running
and operating conditions on a track of a given quality
3.19
clearance between wheelsets and track
lateral displacement of the wheelset in the running plane with respect to the track centre
3.20
lateral clearance between wheelset and body
sum of the amount q at the level of the axle boxes and of the amount w between the bogie frame and the
body
Note 1 to entry: See Figure 3.

Key
1 lateral clearance q
2 lateral clearance w
3 centre of wheelset
Figure 3 — Lateral clearances q and w
Note 2 to entry: The value of all these clearances is considered level with the axle or pivots, with all parts at
wear limit.
3.21
displacement coefficient
A
parameter that takes into account the orientation of the bogie and body position as a result of the
wheelset position on the track
3.22
quasi-static roll
movement resulting from the inclination of the suspended parts under the influence of gravity (canted
track) and/or centrifugal acceleration (curved track) without taking account of any additional dynamic
effects
3.23
roll centre
C
rotational centre of the body
3.24
cant
D
difference in height between the tops of the two rails of a track
3.25
equilibrium cant
D
eq
equilibrium cant at a given velocity in a curve is the cant for which the resultant of the centrifugal
acceleration and gravity is perpendicular to the running plane
3.26
cant excess
difference between applied cant and a lower equilibrium cant
Note 1 to entry: See prCEN/TR 15273-5 for details.
3.27
cant deficiency
I
difference between applied cant and a higher equilibrium cant
Note 1 to entry: See prCEN/TR 15273-5 for details.
3.28
cant transition
part of track where cant changes
3.29
cross level
cant measured on the track
3.30
flexibility coefficient
s
ratio of the angle η (angle between the vertical axis of the carbody tilted on its suspensions and the
plane perpendicular to the running plane) to the angle δ (between the running plane and the horizontal
plane) with the standstill vehicle on a canted track
Note 1 to entry: See detailed explanation in Annex A.
3.31
dissymmetry
η
angleη between the centreline of the body of a stationary vehicle on a level track and the vertical axis
Note 1 to entry: The dissymmetry may come from construction tolerance or decentred loading. See detailed
explanation in Annex A.
3.32
random dynamic movements
additional oscillations of the vehicle, in relation to its quasi-static position, generated by the interaction
of the rolling stock due to some environmental factors such as
— track irregularities,
— sudden track alignment variations in the vicinity of switches and crossings,
— elastic deformation and the degradation of track due to traffic,
— a sequence of rail joints generating resonance phenomena,
— effects of cross winds and aerodynamic phenomena
3.33
pantograph gauges and interface with the overhead contact line system
specific reference profile combined with specific associated rules allowing to verify that the pantograph
head remains inside the allotted space, and that the infrastructure is situated at a sufficient mechanical
and electrical distance according to the pantograph head type (used with live or insulated parts)
3.34
pantograph gauges for infrastructure
reference profile with its associated rules allowing to verify that the pantograph head in a raised
position remains within the allocated space
Key
1 electrical pantograph gauge (with insulated horn)
2 electrical pantograph gauge (with non-insulated horn)
3 mechanical pantograph gauge
4 pantograph reference profile
5 corner according with the form of the pantograph
6 contact wire with the pantograph in a collecting position
7 track centreline
Figure 4 — Pantograph gauges
Note 1 to entry: See Figure B.4.for more details.
3.35
mechanical pantograph gauge for infrastructure
reference profile and its associated rules allowing the definition of the space to be cleared by all the
structures in order to ensure passage of the pantograph in raised position, taking account of the
maintenance allowances and of the displacements considered by the infrastructure
Note 1 to entry: See Figure 4.
3.36
electrical insulating allowance
clearance to be maintained between two parts at different electrical potentials in given atmospheric
conditions in order to ensure electrical insulation
3.37
electrical pantograph gauge for infrastructure
reference profile and its associated rules allowing the definition of the space to be cleared taking
account of the required electrical insulating allowance in relation to the live parts of the pantograph in
the raised position
Note 1 to entry: See Figure 5.
3.38
gauge for live roof mounted parts
reduced gauge in relation to the maximum construction gauge taking account of a sufficient insulating
clearance to the non-live parts of the infrastructure
Note 1 to entry: See Figure 5.
Note 2 to entry: Live parts are electrically non-protected parts of the vehicle; they are not allowed to penetrate
the shaded area.
b) For pantographs fitted with non-
a) Pantograph with insulated horns
insulated horn
Key
1 maximum construction gauge
2 space which shall not be penetrated by non-insulated parts likely to remain live
3 pantograph reference profile
4 electrical insulating clearance for rolling stock
5 pantograph with its maximum displacements
Figure 5 — Gauge for non-insulated live parts on vehicle roof
3.39
vehicle profile
cross sections of the vehicle on straight track perpendicular to the running plane at any point along its
length
3.40
maximum rolling stock construction gauge
maximum size to which rolling stock can be constructed
Figure 6 — Space available for the construction of a vehicle
3.41
vehicle nominal construction gauge
maximum construction gauge, reduced by the construction tolerances according to the gauging method
3.42
infrastructure gauge
defines the space, to be cleared of all objects to permit safe operation
Note 1 to entry: The infrastructure gauge is defined on the basis of the reference profile by applying the
associated rules.
3.43
infrastructure verification limit gauge
space not to be encroached upon at any time to ensure completely safe passage of traffic
3.44
infrastructure installation limit gauge
gives the space to be cleared taking into account a maintenance allowance defined according to the line
speed and to the track quality at the time of the infrastructure installation
3.45
infrastructure installation nominal gauge
space to be cleared of any obstacle in order to enable train operations and track maintenance by
incorporating allowances for safety, maintenance as well as additional allowances defined by the
infrastructure manager
3.46
uniform infrastructure gauge
infrastructure installation nominal gauge of constant cross-section used for the infrastructure
3.47
distance between track centres
EA
distance between the centres of the two adjacent tracks concerned, measured parallel to the running
plane of the track with the least cant, and called the reference track

Key
distance EA
Figure 7 — Distance between track centres
Note 1 to entry: It is possible to measure the distance between two track centres horizontally but for gauging
applications, distance is measured parallel to the running plane of the track with the least cant.
3.48
verification limit distance between track centres
minimum distance to be maintained at all times between adjacent tracks to ensure completely safe
passage of traffic within the gauge used on the two tracks by avoiding any risk of interference between
the vehicles
3.49
installation limit distance between centres
minimum distance between adjacent tracks including maintenance allowances to ensure completely
safe passage of traffic within the gauge used on the two tracks by avoiding any risk of interference
between the vehicles
3.50
installation nominal distance between track centres
distance between two adjacent tracks that generally has a suitable allowance to permit ease of design,
laying, monitoring and maintenance, the operation of exceptional consignments or any other aspect
(including aerodynamic effects, for example)
3.51
track fixity
level of track restraint from movement in any direction, used by absolute gauging
4 Symbols and abbreviations
4.1 Common symbols
For the purposes of this document, the following symbols and abbreviations given in Tables 1 and 2 are
applicable.
Table 1 — Common sub- and superscripts
Index Designation
′ Superscript standing for “pantograph”
0 Subscript designating “conventional” or “reference value”
a Subscript designating “outside” of a curve or “beyond” bogie pivots or axles
Subscript designating:
— “motor” bogie or “independent wheelset” on a motor vehicle when used with
respect to running gears; or
A
— “leading” bogie or “independent wheelset”; or
— “first” bogie or wheelset (the order is selected indifferently – see B below)
Subscript designating:
— “trailing” bogie or wheelset on a motor vehicle when used with respect to running
gears; or
B
— “trailing” bogie or “independent wheelset”; or
— “second” bogie or wheelset otherwise (the order is selected indifferently – see A
above)
chr Subscript standing for “check rail”
cin Subscript standing for kinematic gauging method
cro Subscript standing for “crocodile”
CR Subscript standing for “reference profile”
cnc Subscript standing for “concave”
cnv Subscript standing for “convex”
cw Subscript standing for “contact wire”
dat Subscript standing for “datum point”
det Subscript standing for “detonator”
dyn Subscript standing for “dynamic” gauging method
elec Subscript standing for “electrical insulation”
fb Subscript standing for “ferry boat”

Table 1 — Common sub- and superscripts (ends)
Index Designation
gr Subscript standing for “groove”
h Subscript standing for “horizontal”
Subscript designating “inside” of a curve, or of two concentric tracks, or “between”
i
bogie pivots or axles
inf Subscript designating “infrastructure”
lim Subscript standing for “limit” value
max Subs
...