Railway applications - Gauges - Part 1: General - Common rules for infrastructure and rolling stock

This European Standard is applicable by authorities involved in railway operation and may also be applied for light vehicles (e.g. trams, metros, etc. running on two rails) and their associated infrastructure, but not for systems such as rail-guided buses.
It allows vehicles and infrastructures to be dimensioned and their compliance to be checked relative to the gauging rules.
For the rolling stock and for the infrastructure, this standard is applicable to new designs, to modifications and to the checking of vehicles and infrastructures already in use.
This document EN 15273-1 covers:
   the general principles;
   the various elements and phenomena affecting the determination of gauges;
   the various calculation methods applicable to the elements shared by the infrastructure and by the rolling stock;
   the sharing rules for elements taken into account in calculations specific to the infrastructure and to the vehicle;
   a catalogue of European gauges.
This document does not cover:
   conditions to be met to ensure safety of passengers on platforms and of persons walking along the tracks;
   conditions to be met by the fixed equipment maintenance machines in active position;
   the space to be cleared for the running track of rubber-tyred metros and other vehicles;
   rules applicable to extraordinary transportation, however some formulae may be used;
   rules applicable to the design of the overhead line;
   rules applicable to the design of the current collection on a third rail;
   simulation methods for the running of vehicles, therefore, it does not confirm the validity of existing simulations;
   verification rules of  wagon loadings;
   coding methods for combined transportation;
   infrastructure gauges for very small curve radii (e.g. R < 150 m for gauge G1).

Bahnanwendungen - Begrenzungslinien - Teil 1: Allgemeines - Gemeinsame Vorschriften für Infrastruktur und Fahrzeuge

Diese Europäische Norm gilt für alle Stellen, die mit dem Eisenbahnbetrieb zu tun haben. Sie kann ebenfalls
für andere Schienenbahnsysteme (z. B. Straßenbahnen, U-Bahnen usw.), nicht jedoch für spurgebundene
Fahrzeuge und ähnliche Systeme angewendet werden.
Sie erlaubt die Dimensionierung der Fahrzeuge und der Infrastruktur und die Überprüfung der Konformität mit
den Vorschriften für die Begrenzungslinien.
Diese Europäische Norm gilt für neue und umzubauende Fahrzeuge sowie für die Überprüfung bereits im
Betrieb befindlicher Fahrzeuge und Bahnanlagen.
Diese Europäische Norm EN 15273-1 behandelt:
- die allgemeinen Grundsätze;
- die verschiedenen Einflussgrößen, die bei der Bestimmung der Begrenzungslinien zu berücksichtigen
sind;
- die verschiedenen Rechenmethoden, die gleichermaßen für die Infrastruktur wie für die Fahrzeuge
anzuwenden sind;
- die Vereinbarungen für die Zuordnung der verschiedenen Einflussgrößen auf Infrastruktur und Fahrzeuge;
- einen Katalog der europäischen Begrenzungslinien.
Diese Europäische Norm behandelt nicht:
- die Bedingungen, die im Hinblick auf die Sicherheit der Reisenden auf dem Bahnsteig und von Personen
auf dem Randweg zu berücksichtigen sind;
- die Bedingungen, die von Instandhaltungsfahrzeugen für Infrastrukturanlagen in Arbeitsstellung einzuhalten
sind;
- den Raum, der als Fahrbahn für gummibereifte Bahnfahrzeuge (U-Bahnen und andere) freizuhalten ist;
- Sendungen mit Lademaßüberschreitung, auch wenn einige Gleichungen verwendet werden können;
- die Gestaltung des Oberleitungssystems;
- die Gestaltung von Stromschienensystemen;
- Methoden zur Simulation von Schienenfahrzeugen in fahrendem Zustand; ebenso wenig dient sie dazu,
die Gültigkeit bisheriger Simulationen zu bestätigen;
- Vorschriften zur Überprüfung von Wagenladungen;
- Regeln zur Codierung für den kombinierten Verkehr;
- den Lichtraum bei sehr kleinen Gleisbogenradien (z. B. R < 150 m bei der Begrenzungslinie G1).

Applications ferroviaires - Gabarits - Partie 1: Généralités - Règles communes à l'infrastructure et au matériel roulant

La présente Norme européenne est applicable par les instances concernées par l’exploitation ferroviaire, elle s’applique également aux matériels légers (par exemple, tramway, métro, etc. circulant sur deux rails) et leur infrastructure associée, mais ne s’applique pas aux systèmes tels que des bus guidés par rail.  
Elle permet de dimensionner et de vérifier la conformité du matériel roulant et de l’infrastructure par rapport aux règles du gabarit.
Tant pour le matériel roulant que pour l’infrastructure, la présente norme est applicable aux nouvelles constructions, aux transformations et au contrôle des véhicules et des infrastructures déjà en exploitation.
Le présent document prEN 15273-1 traite :
-   des principes généraux;
-   des différents éléments et phénomènes intervenant dans la détermination des gabarits;
-   des différentes méthodes de calcul, applicables aux éléments communs à l’infrastructure et au matériel roulant;
-   des conventions de répartition des éléments pris en compte dans les calculs propres à l’infrastructure et au matériel roulant;
-   d’un catalogue de gabarits européens.
Le présent document ne traite pas:
-   des conditions à respecter pour la sécurité des voyageurs sur les quais ni des personnes appelées à circuler le long des voies;
-   des conditions à respecter par les engins de maintenance des installations fixes, en position de travail;
-   de l’espace à dégager pour la bande de roulement des métros et autres véhicules montés sur pneus;
-   des transports exceptionnels, mais certaines formules peuvent être utilisées;
-   des règles relatives à la conception du système caténaire;
-   des règles relatives à la conception du système de captage de courant sur un troisième rail;
-   des méthodes de simulation de la marche des véhicules et ne permet pas de confirmer la validité de simulations existantes;
-   des règles de vérification des chargements sur wagon;
-   des méthodes de codification pour le transport combiné;

Železniške naprave - Profili - 1. del: Splošno - Skupna pravila, ki se nanašajo na infrastrukturo in železniška vozila

Ta evropski standard velja za organe oblasti, ki so vključeni v železniško delovanje, in lahko velja tudi za lahka vozila (npr. tramvaje, metroje itd., ki vozijo po dveh tirih) in njim pripadajočo infrastrukturo, a ne za sisteme, kot so avtobusi, vodeni po tirih. Omogoča dimenzioniranje vozil in infrastruktur ter preverjanje njihove skladnosti glede na pravila kalibriranja. Pri železniških vozilih in infrastrukturi ta standard velja za nove načrte, prilagoditve in za preverjanje vozil in infrastrukture, ki so že v uporabi. Ta dokument EN 15273-1 zajema: - splošna načela; - različne elemente in pojave, ki vplivajo na določanje profilov; - različne metode označevanja, veljavne za elemente, ki si jih delita infrastruktura in železniška vozila; - pravila delitve za elemente, ki se upoštevajo pri izračunih, specifične za infrastrukturo in za vozilo; - katalog evropskih profilov.

General Information

Status
Withdrawn
Publication Date
22-Dec-2009
Withdrawal Date
07-May-2013
Current Stage
9960 - Withdrawal effective - Withdrawal
Start Date
08-May-2013
Completion Date
08-May-2013

Relations

Effective Date
15-May-2013
Effective Date
28-Jan-2026
Effective Date
28-Jan-2026

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Frequently Asked Questions

EN 15273-1:2009 is a standard published by the European Committee for Standardization (CEN). Its full title is "Railway applications - Gauges - Part 1: General - Common rules for infrastructure and rolling stock". This standard covers: This European Standard is applicable by authorities involved in railway operation and may also be applied for light vehicles (e.g. trams, metros, etc. running on two rails) and their associated infrastructure, but not for systems such as rail-guided buses. It allows vehicles and infrastructures to be dimensioned and their compliance to be checked relative to the gauging rules. For the rolling stock and for the infrastructure, this standard is applicable to new designs, to modifications and to the checking of vehicles and infrastructures already in use. This document EN 15273-1 covers:  the general principles;  the various elements and phenomena affecting the determination of gauges;  the various calculation methods applicable to the elements shared by the infrastructure and by the rolling stock;  the sharing rules for elements taken into account in calculations specific to the infrastructure and to the vehicle;  a catalogue of European gauges. This document does not cover:  conditions to be met to ensure safety of passengers on platforms and of persons walking along the tracks;  conditions to be met by the fixed equipment maintenance machines in active position;  the space to be cleared for the running track of rubber-tyred metros and other vehicles;  rules applicable to extraordinary transportation, however some formulae may be used;  rules applicable to the design of the overhead line;  rules applicable to the design of the current collection on a third rail;  simulation methods for the running of vehicles, therefore, it does not confirm the validity of existing simulations;  verification rules of wagon loadings;  coding methods for combined transportation;  infrastructure gauges for very small curve radii (e.g. R < 150 m for gauge G1).

This European Standard is applicable by authorities involved in railway operation and may also be applied for light vehicles (e.g. trams, metros, etc. running on two rails) and their associated infrastructure, but not for systems such as rail-guided buses. It allows vehicles and infrastructures to be dimensioned and their compliance to be checked relative to the gauging rules. For the rolling stock and for the infrastructure, this standard is applicable to new designs, to modifications and to the checking of vehicles and infrastructures already in use. This document EN 15273-1 covers:  the general principles;  the various elements and phenomena affecting the determination of gauges;  the various calculation methods applicable to the elements shared by the infrastructure and by the rolling stock;  the sharing rules for elements taken into account in calculations specific to the infrastructure and to the vehicle;  a catalogue of European gauges. This document does not cover:  conditions to be met to ensure safety of passengers on platforms and of persons walking along the tracks;  conditions to be met by the fixed equipment maintenance machines in active position;  the space to be cleared for the running track of rubber-tyred metros and other vehicles;  rules applicable to extraordinary transportation, however some formulae may be used;  rules applicable to the design of the overhead line;  rules applicable to the design of the current collection on a third rail;  simulation methods for the running of vehicles, therefore, it does not confirm the validity of existing simulations;  verification rules of wagon loadings;  coding methods for combined transportation;  infrastructure gauges for very small curve radii (e.g. R < 150 m for gauge G1).

EN 15273-1:2009 is classified under the following ICS (International Classification for Standards) categories: 45.020 - Railway engineering in general. The ICS classification helps identify the subject area and facilitates finding related standards.

EN 15273-1:2009 has the following relationships with other standards: It is inter standard links to EN 15273-1:2013, EN 14363:2016+A2:2022, EN 14067-4:2024+A1:2025. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

EN 15273-1:2009 is associated with the following European legislation: EU Directives/Regulations: 2001/16/EC, 2008/57/EC, 93/38/EEC, 96/48/EC; Standardization Mandates: M/024, M/275, M/334. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.

EN 15273-1:2009 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.

Standards Content (Sample)


2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Železniške naprave - Profili - 1. del: Splošno - Skupna pravila, ki se nanašajo na infrastrukturo in železniška vozilaBahnanwendungen - Lichtraum - Teil 1: Allgemeines - Gemeinsame Vorschriften für Infrastruktur und FahrzeugeApplications ferroviaires - Gabarits - Partie 1: Généralités - Règles communes à l'infrastructure et au matériel roulantRailway applications - Gauges - Part 1: General - Common rules for infrastructure and rolling stock45.060.01Železniška vozila na splošnoRailway rolling stock in generalICS:Ta slovenski standard je istoveten z:EN 15273-1:2009SIST EN 15273-1:2011en,fr,de01-oktober-2011SIST EN 15273-1:2011SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 15273-1
December 2009 ICS 45.020 English Version
Railway applications - Gauges - Part 1: General - Common rules for infrastructure and rolling stock
Applications ferroviaires - Gabarits - Partie 1: Généralités -Règles communes à l'infrastructure et au matériel roulant Bahnanwendungen - Begrenzungslinien - Teil 1: Allgemeines - Gemeinsame Vorschriften für Infrastruktur und Fahrzeuge This European Standard was approved by CEN on 3 October 2009.
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. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN Management Centre or to any CEN member.
This European Standard exists 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 Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2009 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 15273-1:2009: ESIST EN 15273-1:2011

Catalogue of gauges.99 SIST EN 15273-1:2011

Reference profiles and associated rules for static gauges.102 B.1 Static gauges G1 and G2.102 B.1.1 Upper parts of static gauges G1 and G2.102 B.1.2 Lower parts of static gauges GIS1 and GIS2.104 B.2 Static gauges GA, GB and GC.107 B.2.1 Lateral part.107 B.2.2 Static reference profiles for the upper parts.107 B.2.3 Associated rules.108 B.3 Static gauge GB1 and GB2.110 B.3.1 Lateral part.110 B.3.2 Static reference profiles for the upper parts.110 B.3.3 Associated rules.112 B.4 Static gauges OSJD.113 B.4.1 General comment.113 B.4.2 Static reference profiles for the upper parts.113 B.4.3 Associated rules.116 B.4.4 Static reference profiles for the lower parts.116 B.5 Static gauge for the upper parts of W6a.118 B.5.1 Static reference profile for the upper parts of W6a.118 B.5.2 Associated rules.118 B.5.3 Taking the roll into account.119 B.5.4 Infrastructure allowance in the transverse direction.119 B.5.5 Vertical geometric overthrow upwards and vertical allowance of the infrastructure.119 B.5.6 Vehicle allowances in the transverse direction.120 B.5.7 Vehicle allowances in the vertical direction.120 B.6 Static gauge for the upper parts of UK1 [B].120 B.6.1 Static reference profile for the upper parts of UK1 [B].120 B.6.2 Associated rules.121 B.6.3 Taking the roll into account.121 B.6.4 Infrastructure allowance in the transverse direction.121 B.6.5 Vertical geometric overthrow upwards and vertical allowance of the infrastructure.121 B.6.6 Vehicle allowances in the transverse direction.122 B.6.7 Vehicle allowances in the vertical direction.122 B.7 Static gauge FIN 1.122 B.7.1 General comment.122 B.7.2 Static reference profile for the upper parts.122 B.7.3 Associated rules.124 B.7.4 Position of the platforms.124 Annex C (normative)
Reference profiles and associated rules for kinematic gauges.126 C.1 Kinematic gauges G1 and G2.126 C.1.1 Upper part of gauges G1 and G2.126 C.1.2 Gauges of the lower parts of GIC1, GIC2.128 C.2 Kinematic gauges GA, GB and GC.131 C.2.1 Lateral part.131 C.2.2 Kinematic reference profiles for the upper parts.132 C.2.3 Associated rules.132 C.3 Kinematic gauges GB1 and GB2.134 C.3.1 Lateral part.134 C.3.2 Kinematic reference profiles for the upper parts.134 C.3.3 Associated rules.135 C.4 Kinematic gauge GIC3.137 C.4.1 Upper parts.137 C.4.2 Reference profile for the lower parts.137 C.4.3 Associated rules.138 SIST EN 15273-1:2011

Reference profiles and associated rules for dynamic gauges.158 D.1 Dynamic gauge SEa and SEc.158 D.1.1 Dynamic reference profile SEa.158 D.1.2 Dynamic reference profile SEc.159 D.1.3 Associated rules.160 D.2 Dynamic gauge for the lower parts of W6a.161 D.2.1 Dynamic reference profile for the lower parts of W6a.161 D.2.2 Associated rules.162 D.2.3 Infrastructure allowances in the transverse direction.162 D.2.4 Infrastructure allowances in the vertical direction.162 D.2.5 Vehicle allowances in the transverse direction.163 D.2.6 Vehicle allowances in the vertical direction.163 D.3 Dynamic gauge UK1.163 D.3.1 Dynamic gauge for the lower parts of UK1[A].163 D.3.2 Associated rules.164 D.3.3 Taking the roll into account.165 D.3.4 Infrastructure allowances in the transverse direction.165 D.3.5 Infrastructure allowances in the vertical direction.165 D.3.6 Vehicle allowances in the transverse direction.165 D.3.7 Vehicle allowances in the vertical direction.166 D.4 Dynamic gauges for the upper parts of UK1 [D].166 D.4.1 Basic principle.166 D.4.2 Dynamic reference profile for the upper parts of UK1[D].167 D.4.3 Associated rules.167 D.4.4 Infrastructure allowances in the transverse direction.168 SIST EN 15273-1:2011

Uniform gauges.169 E.1 General information on gauges GUC, GU1, GU2, UK1[D] and Z -GD.169 E.2 Uniform gauge GU1.169 E.2.1 Basic data.170 E.3 Uniform gauge Z -GD.171 E.3.1 Uniform reference profile.171 E.3.2 Basic data.173 Annex F (normative)
Specific rules in the vertical direction.174 F.1 Passing over link spans onto ferries.174 F.2 Marshalling humps.175 F.2.1 Agreement for the gauges of group G1, G2, GA, GB, GB1, GB2, GC, FR3.3, BE1, BE2, BE3, ….175 F.2.2 Other agreements.178 Annex G (normative)
Geometric overthrow to be considered in the additional overthrows for the turnouts.180 G.1 General.180 G.2 Turnout laid on a straight track.180 G.2.1 Overthrow on the turnout route.180 G.2.2 Overthrow on the through route.181 G.3 Turnout laid on a curved track.182 G.3.1 Overthrow on the turnout route.182 G.3.2 Overthrow on the through route.183 Annex H (normative)
Rules relating to pantographs.185 H.1 Catalogue of standard heads.185 H.2 Reference vehicle parameters.185 H.3 Electrical insulating allowances.186 H.4 Characteristics of the collection system.186 H.5 Specific cases.187 H.5.1 Pantograph gauges linked to gauges BE1, BE2 and BE3.187 Annex I (normative)
Rules relating to access steps and platform installation.189 I.1 Actual and conventional gap between step and platform.189 I.1.1 Position of the platforms.191 I.1.2 Position of the steps.194 Annex J (informative)
Widening of the vehicles as a function of the possibilities offered by the infrastructure.196 J.1 General.196 J.2 Possible gain on the track centre side.196 J.2.1 Basic principle.196 J.2.2 Application.198 J.3 Possible gain on the structure side.199 Annex K (normative)
Application of the probability theory in conjunction with the limit values taking into account the oscillations and dissymmetry in the determination of allowance M1.200 K.1 Introduction.200 K.2 Reminder of some principles of the probability theory.200 K.3 Taking into account oscillations and dissymmetry in the determination of allowance M1.201 K.3.1 Additional comments.202 Annex L (informative)
A–deviations.204 Bibliography.206
and for the related calculation method; ¾ Part 3 gives the rules for dimensioning the infrastructure in order to allow vehicles built according to the relevant gauge taking into account the specific constraints to operate within it. This standard defines the gauge as a one-to-one agreement between infrastructure and vehicle. The aim of this standard is to define the space to be cleared and maintained to allow the running of rolling stock, and the rules for calculation and verification intended for sizing the rolling stock to run on one or several infrastructures without interference risk. This standard defines the responsibilities of the following parties: a) for the infrastructure: 1) gauge clearance, 2) maintenance; 3) infrastructure monitoring. b) for the rolling stock: 1) compliance of the operating rolling stock with the gauge concerned; 2) maintenance of this compliance over time. This standard includes a catalogue of various railway gauges implemented in Europe, some of which are required to ensure the interoperability, while others are related to more specific applications. This standard does not exclude the possibility of implementing other gauges not listed in the catalogue.
the general principles; ¾ the various elements and phenomena affecting the determination of gauges; ¾ the various calculation methods applicable to the elements shared by the infrastructure and by the rolling stock; ¾ the sharing rules for elements taken into account in calculations specific to the infrastructure and to the vehicle; ¾ a catalogue of European gauges. This document does not cover:
conditions to be met to ensure safety of passengers on platforms and of persons walking along the tracks; ¾ conditions to be met by the fixed equipment maintenance machines in active position; ¾ the space to be cleared for the running track of rubber-tyred metros and other vehicles; ¾ rules applicable to extraordinary transportation, however some formulae may be used; ¾ rules applicable to the design of the overhead line; ¾ rules applicable to the design of the current collection on a third rail; ¾ simulation methods for the running of vehicles, therefore, it does not confirm the validity of existing simulations; ¾ verification rules of
wagon loadings; ¾ coding methods for combined transportation; ¾ infrastructure gauges for very small curve radii (e.g. R < 150 m for gauge G1). 2 Normative references The following referenced documents are indispensable for the application 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. SIST EN 15273-1:2011

EN 50367, Railway applications — Current collection systems —Technical criteria for the interaction between pantograph and overhead line (to achieve free access) EN 50119, Railway applications — Fixed
installations — Electric traction overhead contact lines 3 Terms and definitions For the purposes of this European Standard, the following terms and definitions apply. 3.1 (track) running surface
virtual plane coplanar with the rail tops of a track 3.2 normal co-ordinates are measured in relation to the orthogonal axes defined in a transverse plane, normal to the longitudinal centreline of the rails in the nominal position on a theoretically perfect track One of these axes, commonly referred to as the horizontal axis, is coplanar with the running surface. The other axis, commonly referred to as the vertical axis, is perpendicular to the running surface and is equidistant from the rails. For calculation purposes, the vertical axis is used as a common reference for the infrastructure and for the vehicle (see Figure 1).
Key 1
running surface 2
centreline of the vehicle and of the track
Figure 1 — Reference axes SIST EN 15273-1:2011

NOTE According to the calculation method implemented, the gauge will be a static, kinematic or dynamic one. 3.4 reference profile (RP) line specific to each gauge, representing the cross-section shape and used as a common basis to work out the sizing rules of the infrastructure and of the vehicle 3.5 upper parts, lower parts upper parts correspond to the upper zone of the gauge and the lower parts correspond to the lower zone of the gauge NOTE The limit between the two parts is defined for each gauge.
3.6 associated rules mathematical laws associated with each reference profile in order to size the infrastructure or a vehicle 3.7 static gauge
combination of the specific reference profile and its associated static rules 3.8 kinematic gauge combination of the specific reference profile and its associated kinematic rules 3.9 dynamic gauge combination of the specific reference profile and its associated dynamic rules 3.10 absolute gauging method directory of the reference position of structures along a given route and of the dynamic rules associated with this route 3.11 comparative gauging method set of rules allowing the comparing of the swept envelopes of various vehicles on the basis of their dynamic movements 3.12 geometric overthrow (iDplor aDpl) difference between the distance, measured parallel to the running surface and in the transverse direction, of a part of the vehicle under consideration to the centre of a curved track or radius R and the distance of this same part, in the same conditions, to the centre of a straight track NOTE See detailed explanation in 5.1.
NOTE See detailed explanation in 5.2. 3.14 dissymmetry (0h) angle h0 that would be made by the centreline of the body of a stationary vehicle on a level track relative to the vertical in the absence of any friction. NOTE See detailed explanation in 5.3. 3.15 clearance between wheelset and track (2dl-) transverse displacement of the wheelset in relation to the track centre. NOTE See detailed explanation in 5.4. 3.16 transverse clearance between wheelset and body (wq+) sum of the amount "q" at the level of the axle boxes and of the amount "w " between the bogie frame and the body (see Figure 2)
Key 1 transverse clearance "q" between wheelset and bogie frame or between wheelset and body for vehicles not fitted with bogies 2 transverse clearance "w" between body and bogie 3 centre of wheelset Figure 2 — Transverse clearances q and w 3.17 coefficient of displacement (A) parameter "A" to take into account the orientation of the bogie and body position as a result of the wheelset position on the track SIST EN 15273-1:2011

DDI-=th (1) A negative value of cant deficiency denotes cant excess. 3.21 quasi-static roll corresponds to the roll movements of the vehicle due to the roll of the sprung weight under the effect of the transverse accelerations due to gravity (see Figure 14 a)) or to the centrifugal force not compensated by the cant (see Figure 14 b)). This roll is referred to as quasi-static because it is determined for a moving vehicle on the basis of a transverse acceleration considered as steady and taking no account of the additional dynamic or random effects
3.22 random dynamic movements additional oscillations of the vehicle, in relation to its quasi-static position, generated by the interaction of the vehicle and the track resulting from the condition of the latter and the running speed. They are generated by the dynamic reactions of the vehicle due to some layout defects such as:
¾ track geometry; ¾ sudden layout variations in the vicinity of turnouts; ¾ elastic deformation and
...

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