IEC 62290-1:2025

Railway applications - Urban guided transport management and command/control systems - Part 1: System principles and fundamental concepts

IEC 62290‑1:2025 provides an introduction to the IEC 62290 series and deals with the main concepts, the system definition, the principles and the basic functions of UGTMS (urban guided transport management and command/control systems) for use in urban guided passenger transport lines and networks. This document is applicable for new lines or resignalling of existing lines.
This document is applicable to applications using:
- continuous data transmission,
- continuous supervision of train movements by train protection profile, and
- localisation of trains by onboard UGTMS equipment (reporting trains), and optionally by external wayside (and optionally onboard) device.
The IEC 62290 series specifies the functional, system and interface requirements for the command, control, and management systems intended to be used on urban, guided passenger transport lines and networks.
These systems are designated herein as urban guided transport management and command/control systems (UGTMS). UGTMS cover a wide range of operations needs from non-automated (GOA1) to unattended (GOA4) operation. A line may be equipped with UGTMS on its full length or only partly equipped.
The IEC 62290 series does not specifically address security issues. However, aspects of safety requirements may apply to ensuring security within the urban guided transit system.
The main objectives of this series are as follows:
- to provide a baseline system description and functional requirements specification for a transport authority to use in a request for proposal,
- to provide recommendations for those transport authorities wishing to acquire an interoperable or interchangeable system.
It is the responsibility of the transport authority concerned to decide on how to apply the IEC 62290 series and to take into account their particular needs.
This document is applicable to applications using:
- continuous data transmission,
- continuous supervision of train movements by train protection profile, and
- localisation of trains by onboard UGTMS equipment (reporting trains), and optionally by external wayside (and optionally onboard) device.
This third edition cancels and replaces the second edition published in 2014. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) Figure 3, giving the system environment of UGTMS, has been amended to reflect the adaptation of it;
b) external equipment for which no requirement is described in the IEC 62290 series has been removed;
c) new external equipment having such requirements (like the washing machine) has been added.

Applications ferroviaires - Systèmes de contrôle/commande et de gestion des transports guidés urbains - Partie 1: Principes système et concepts fondamentaux

L'IEC 62290‑1:2025 fournit une introduction à la série IEC 62290, une présentation des concepts principaux, une définition du système, les principes et les fonctions de base des UGTMS (systèmes de contrôle/commande et de gestion des transports guidés urbains) utilisés par les lignes et les réseaux de transport guidé urbain de voyageurs. Cette norme est applicable aux lignes nouvelles ou à la modernisation de la signalisation de lignes existantes.
Ce document est applicable aux applications utilisant:
- une transmission continue de données,
- une supervision continue du mouvement des trains par courbe de contrôle de vitesse,
- une localisation des trains par l’équipement embarqué UGTMS (trains communicants), et optionnellement par un dispositif externe au sol (et en option au bord).
La série IEC 62290 spécifie les exigences fonctionnelles, système et d’interface des systèmes de contrôle/commande et de gestion destinés à être utilisés sur les lignes et les réseaux de transport guidé urbain de voyageurs.
Ces systèmes sont identifiés ici par «systèmes de contrôle/commande et de gestion des transports guidés urbains» (UGTMS - Urban Guided Transport Management and Command/Control Systems). Les systèmes UGTMS recouvrent de fait une large gamme de besoins d'exploitation depuis l'exploitation non automatisée des trains (GOA1) jusqu’à l'exploitation sans personnel à bord des trains (GOA4). Une ligne peut être équipée avec UGTMS sur toute sa longueur ou seulement sur une partie.
La présente série ne traite pas de façon spécifique les problèmes de sécurité publique. Toutefois, certains aspects des exigences de sécurité technique peuvent s’appliquer pour contribuer à la garantie de la sécurité publique à l’intérieur des transports guidés urbains.
Les objectifs principaux de la présente série sont les suivants:
- fournir une description de base du système et une spécification des exigences fonctionnelles qu'une autorité en charge du transport pourra utiliser dans un appel d’offres,
- fournir des recommandations à ces autorités en charge du transport qui souhaitent acquérir un système interopérable ou interchangeable.
Il est de la responsabilité des autorités concernées en charge du transport de décider de la manière d’appliquer la présente série et de prendre en compte leurs besoins spécifiques.
Cette troisième édition annule et remplace la deuxième édition parue en 2014, dont elle constitue une révision technique.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
a) la Figure 3 donnant l’environnement système d’UGTMS a été remise à jour pour refléter l’adaptation de celui-ci;
b) les équipements externes pour lesquels aucune exigence n’est décrite dans la série ont été retirés;
c) les nouveaux équipements externes ayant de telles exigences (comme la machine à laver) ont été ajoutés.

General Information

• Status: Published
• Publication Date: 03-Apr-2025
• ICS: 45.060.01 - Railway rolling stock in general
• Technical Committee: TC 9 - Electrical equipment and systems for railways
• Drafting Committee: WG 40 - TC 9/WG 40
• Current Stage: PPUB - Publication issued
• Start Date: 04-Apr-2025
• Completion Date: 11-Apr-2025

Relations

• Revises: IEC 62290-1:2014 - Railway applications - Urban guided transport management and command/control systems - Part 1: System principles and fundamental concepts
• Effective Date: 05-Sep-2023

Overview

IEC 62290-1:2025 is an international standard developed by the International Electrotechnical Commission (IEC) that defines the system principles and fundamental concepts for Urban Guided Transport Management and Command/Control Systems (UGTMS). Targeted at railway applications, this standard applies specifically to urban guided passenger transport lines and networks, including new installations and the resignalling or upgrading of existing lines.

This third edition supersedes the 2014 version with significant updates to system environment modeling and equipment requirements, catering to evolving urban transit demands. IEC 62290-1:2025 underscores continuous data transmission, real-time supervision of train movements, and precise train localization through onboard and optionally wayside equipment.

Key Topics

• Urban Guided Transport Management and Command/Control Systems (UGTMS): Covers core system definitions, principles, and basic functionalities essential for managing urban guided transport operations.

• Grades of Automation (GOA): The standard supports automation levels from non-automated operations (GOA1) up to fully unattended operations (GOA4), allowing flexibility in control and supervision methods.

• Continuous Supervision and Data Transmission: Emphasizes the use of continuous data communication and train protection profiles for supervising train movements to enhance safety and efficiency.

• Train Localization Technologies: Utilization of onboard UGTMS equipment for train reporting is mandatory, with optional deployment of external wayside devices for improved accuracy.

• System Environment and Boundaries: Provides an updated framework depicting the interactions between various system elements and external equipment, ensuring clear functional scope.

• Interoperability and Compatibility: Lays out principles to facilitate the integration, interchangeability, and adaptability of UGTMS equipment across different urban transit networks.

• Functional Requirements and Performance: Specifies baseline system descriptions and essential functional requirements to guide transport authorities in system acquisition and implementation.

Applications

IEC 62290-1:2025 is especially valuable for:

• Urban Transit Authorities: A foundational guide for specifying and procuring command and control systems that meet international interoperability requirements.

• Signaling and Control System Upgrades: Provides recommendations to upgrade or retrofit existing urban transit signalling infrastructures while ensuring compatibility with new UGTMS components.

• Automation Implementation: Assists in the phased introduction of automation technologies from semi-automated to fully unattended urban transit operations.

• Safety and Operational Management: Enhances safe train operation through continuous supervision and localization technologies, supporting operational performance and passenger safety.

• Intermodal Transport Systems: Facilitates interoperability between neighboring urban transit networks, promoting seamless passenger transfers and network integration.

Related Standards

IEC 62290-1:2025 is part of the broader IEC 62290 series, which collectively specifies the functional, system, and interface requirements for urban guided transport management and command/control systems. Transport authorities and system integrators are advised to consider complementary standards within the series to address specific aspects such as:

• System Implementation and Integration
• Communication Protocols and Data Transmission
• Safety and Reliability Standards (RAMS)
• Electromagnetic Compatibility
• Accessibility and Mobility Requirements

For comprehensive planning and procurement activities, the IEC 62290 series offers a unified framework facilitating the deployment of interoperable, efficient, and scalable urban guided transport systems.

---

Keywords: IEC 62290-1:2025, urban guided transport, UGTMS, railway command/control systems, automated train operation, grades of automation, train localization, continuous data transmission, interoperability, urban transit standards, railway signalling upgrade.

Standards Content (Sample)

IEC 62290-1 ®
Edition 3.0 2025-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Railway applications – Urban guided transport management and
command/control systems –
Part 1: System principles and fundamental concepts

Applications ferroviaires – Systèmes de contrôle/commande et de gestion des
transports guidés urbains –
Partie 1: Principes système et concepts fondamentaux
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IEC 62290-1 ®
Edition 3.0 2025-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Railway applications – Urban guided transport management and

command/control systems –
Part 1: System principles and fundamental concepts

Applications ferroviaires – Systèmes de contrôle/commande et de gestion des

transports guidés urbains –
Partie 1: Principes système et concepts fondamentaux

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 45.060.01  ISBN 978-2-8327-0301-4

– 2 – IEC 62290-1:2025 © IEC 2025
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 9
2 Normative references . 9
3 Terms, definitions and abbreviated terms . 10
3.1 Terms and definitions. 10
3.2 Abbreviated terms . 17
4 Concepts . 17
4.1 Urban guided transport (UGT) . 17
4.1.1 General . 17
4.1.2 Operations . 17
4.1.3 Operational facilities . 18
4.1.4 Train . 18
4.1.5 Staff . 18
4.1.6 Passengers . 18
4.2 Grade of automation . 19
4.2.1 Descriptions . 19
4.2.2 Implementation of grades of automation . 21
4.2.3 Grades of automation covered by UGTMS . 22
4.3 Operation management and supervision . 22
4.4 Interoperability, interchangeability, compatibility and adaptability . 22
4.4.1 General . 22
4.4.2 Interoperability. 22
4.4.3 Interchangeability . 22
4.4.4 Compatibility . 23
4.4.5 Adaptability . 23
5 System environment and boundaries . 23
6 General requirements and description of the basic functions . 24
6.1 General requirements . 24
6.1.1 System approach . 24
6.1.2 RAMS requirements . 24
6.1.3 Electromagnetic compatibility . 24
6.1.4 Energy saving . 25
6.1.5 Local conditions . 25
6.1.6 Intermodality between networks . 25
6.1.7 Interoperability between neighbouring networks. 25
6.1.8 Measures to ensure the movement of passengers with reduced mobility . 25
6.1.9 Nominal mode, degraded modes, emergency situation . 25
6.1.10 Basic system performances . 26
6.1.11 Requirements for upgrading GOA . 26
6.1.12 Requirements for adding new parts of line . 26
6.2 Description of the basic functions . 26
6.2.1 General . 26
6.2.2 Basic functions for train operation. 26
6.2.3 Basic functions for operation management and supervision . 30
Bibliography . 33

Figure 1 – Three-step process followed by the UGTMS series . 7
Figure 2 – Example of track layout . 18
Figure 3 – System environment . 23

Table 1 – Grades of automation . 20

– 4 – IEC 62290-1:2025 © IEC 2025
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
RAILWAY APPLICATIONS – URBAN GUIDED TRANSPORT
MANAGEMENT AND COMMAND/CONTROL SYSTEMS –

Part 1: System principles and fundamental concepts

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
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shall not be held responsible for identifying any or all such patent rights.
IEC 62290-1 has been prepared by IEC technical committee 9: Electrical equipment and
systems for railways. It is an International Standard.
This third edition cancels and replaces the second edition published in 2014. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) Figure 3, giving the system environment of UGTMS, has been amended to reflect the
adaptation of it;
b) external equipment for which no requirement is described in the IEC 62290 series has been
removed;
c) new external equipment having such requirements (like the washing machine) has been
added.
The text of this International Standard is based on the following documents:
Draft Report on voting
9/3166/FDIS 9/3197/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/publications.
A list of all parts of IEC 62290 series, under the general title Railway applications – Urban
guided transport management and command/control systems, can be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn, or
• revised.
– 6 – IEC 62290-1:2025 © IEC 2025
INTRODUCTION
The IEC 62290 series specifies the functional, system and interface requirements for the
command, control, and management systems intended to be used on urban, guided passenger
transport lines and networks.
These systems are designated herein as urban guided transport management and
command/control systems (UGTMS). UGTMS cover a wide range of operations needs from non-
automated (GOA1) to unattended (GOA4) operation. A line may be equipped with UGTMS on
its full length or only partly equipped.
The IEC 62290 series does not specifically address security issues. However, aspects of safety
requirements may apply to ensuring security within the urban guided transit system.
The main objectives of this series are as follows:
• to provide a baseline system description and functional requirements specification for a
transport authority to use in a request for proposal,
• to provide recommendations for those transport authorities wishing to acquire an
interoperable or interchangeable system.
It is the responsibility of the transport authority concerned to decide on how to apply the
IEC 62290 series and to take into account their particular needs.
The IEC 62290 series is also intended to support applications for upgrading existing signalling
and command control systems. In this case, interchangeability and compatibility could be
ensured only for the additional UGTMS equipment. Checking the possibility for upgrading
existing equipment and the level of interoperability is the responsibility of the transport authority
concerned.
Application of the series should take into account the differences between the various networks
operated in different nations. Those differences include operational and regulatory
requirements as well as different safety cultures.
The IEC 62290 series defines a catalogue of UGTMS requirements split into mandatory and
optional functions. The functions used are based on the given grade of automation. Most of the
functions characterized as mandatory are considered with no condition. Some specific functions
have a condition to be mandatory (this condition being generally related to the use of an external
equipment by UGTMS). By fulfilling the requirements, a supplier can create one or more generic
applications including all mandatory functions and all or a subset of optional functions. A generic
application will achieve interoperability within the defined specific application conditions.
Customising a generic application will create a specific application taking into account of local
conditions like track layout and headway requirements. It is the choice of supplier and transport
authority to add additional functions to a generic or specific application. These additional
functions are not described in the IEC 62290 series.
According to IEC 62278, it is the responsibility of the transport authority to decide, taking into
account their risk acceptance principles, to conduct specific hazard and risk analysis for each
specific application. The safety levels for the functions of each specific application are
determined by a specific risk analysis.
Terms such as "safety-related command", "safety conditions", "safe station departure" are
mentioned without having performed any hazard analysis.

The IEC 62290 series is intended to consist of four parts:
• IEC 62290-1, "System principles and fundamental concepts", provides an introduction to the
IEC 62290 series and deals with the main concepts, the system definition, the principles
and the main basic functions of UGTMS.
The three other parts correspond to the three steps (see Figure 1) required in the process of
specifying UGTMS and are used accordingly.
• IEC 62290-2, "Functional requirements specification", specifies the functional requirements
associated to the basic functions provided by IEC 62290-1, within the system boundaries
and interfaces as defined in Figure 3.
The FRS (functional requirements specification) identifies and defines the functions that are
necessary to operate an urban guided transport system. Two types of functions are
distinguished for a given grade of automation: mandatory functions (e.g. train detection) and
optional functions (e.g. manage stabling). Requirements of functions have the same
allocation, unless they are marked otherwise.
• IEC 62290-3, "System requirements specification", deals with the architecture of the system
and the allocation of the requirements and functions identified in IEC 62290-2 to UGTMS
equipment.
The SRS (system requirements specification) specifies the architecture of a UGTMS system,
with mandatory and optional UGTMS equipment.
• IEC 62290-4 , "Interface specifications", deals with the definition of the interfaces, as well
as the data exchanged by them (FIS and FFFIS), for the interoperable and interchangeable
UGTMS equipment identified in IEC 62290-3.
For interfaces between UGTMS equipment, the logical interface or FIS (functional interface
specification) or the physical and logical interface or FFFIS (form fit functional interface
specification) will be considered.
NOTE The specific structure of IEC 62290-4 will be established to accommodate optional and mandatory
UGTMS equipment, and to reflect local conditions. In principle, only one FIS or FFFIS will be defined for the
same interface. However, when justified in some cases, several FISs or several FFFISs will be defined for the
same interface.
Figure 1 – Three-step process followed by the UGTMS series
___________
Under consideration.
– 8 – IEC 62290-1:2025 © IEC 2025
Requirements are those necessary to fulfil all operational needs for safe and orderly operation
requested by transport authorities without regard to technical solutions.
The chosen level of detail in describing requirements enables customers as well as transport
authorities to be assured that generic applications delivered by different suppliers will cover at
least the same functionality as specified in this document.
Requirements which are established by the IEC 62290 series are indicated clearly with a
requirement identification number related to the function to be covered.

RAILWAY APPLICATIONS – URBAN GUIDED TRANSPORT
MANAGEMENT AND COMMAND/CONTROL SYSTEMS –

Part 1: System principles and fundamental concepts

1 Scope
This part of IEC 62290 provides an introduction to the IEC 62290 series and deals with the main
concepts, the system definition, the principles and the basic functions of UGTMS (urban guided
transport management and command/control systems) for use in urban guided passenger
transport lines and networks. This document is applicable for new lines or resignalling of
existing lines.
This document is applicable to applications using
• continuous data transmission,
• continuous supervision of train movements by train protection profile, and
• localisation of trains by onboard UGTMS equipment (reporting trains), and optionally by
external wayside (and optionally onboard) device.
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.
IEC 62236 (all parts), Railway applications – Electromagnetic compatibility
IEC 62278, Railway applications – Specification and demonstration of reliability, availability,
maintainability and safety (RAMS)
IEC 62279, Railway applications – Communications, signalling and processing systems –
Software for railway control and protection systems
IEC 62280, Railway applications – Communication, signalling and processing systems – Safety
related communication in transmission systems
IEC 62290-2, Railway applications – Urban guided transport management and
command/control systems – Part 2: Functional requirements specification
IEC 62425, Railway applications – Communication, signalling and processing systems – Safety
related electronic systems for signalling

– 10 – IEC 62290-1:2025 © IEC 2025
3 Terms, definitions and abbreviated terms
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in standardization at the following
addresses:
• IEC Electropedia: available at https://www.electropedia.org/
• ISO Online browsing platform: available at https://www.iso.org/obp
3.1 Terms and definitions
3.1.1
adaptability
capacity of the system to allow evolution of train fleet or guideway
3.1.2
additional function
function to be adapted to the specific requirements of each transport authority (due to local
rules or specific needs of the transport authority)
Note 1 to entry: The components affected by the additional function are not necessarily interchangeable nor
interoperable.
3.1.3
automatic driving mode
operation in semi-automated train operation (GOA2), driverless train operation (GOA3),
unattended train operation (GOA4)
3.1.4
command,
order used to perform a function in a system
Note 1 to entry: This order can originate from
– a system operator,
– an external system, or
– inside UGTMS;
This order can be sent:
– to an external system, or
– inside UGTMS.
[SOURCE: IEC 60050-821:2017, 821-01-50, modified – In the Note 1 to entry, “the system
itself” has been replaced with “UGTMS”.]
3.1.5
commercial speed
nominal average speed of passenger service trains between two terminus stations of the line
(dwell times at stations taken into account)
Note 1 to entry: Commercial speed is equal to the length between two terminus stations divided by the nominal
journey time.
[SOURCE: IEC 60050-821:2017, 821-01-51]
3.1.6
compatibility
capability of the UGTMS system to co-exist with other systems in the
same transport network without any interference

3.1.7
control,
process to keep the output of the system within defined parameters using commands for non-
safety-related control or safety-related control
Note 1 to entry: An example of non-safety-related control is the process of commanding acceleration or braking to
maintain speed at x km/h ± y km/h. An example of safety-related control is the process of commanding the emergency
brakes if the speed exceeds the predefined speed limit.
[SOURCE: IEC 60050-821:2017, 821-01-28]
3.1.8
driving on sight
on sight train operation
manual driving carried out at a speed that allows the train operator to stop the train before
reaching any obstacle on the track
[SOURCE: IEC 60050-821:2017, 821-02-127, modified – The word “driver” has been replaced
with “train operator”.]
3.1.9
dwell time
time during which a train is berthed in a station served by the mission
3.1.10
emergency brake
brake or combination of brakes which ensures that the train will stop with the brake rate agreed
between the transport authority and the train manufacturer
[SOURCE: IEC 60050-811:2017, 811-06-11, modified – “the authority having jurisdiction, the
transport authority and the train manufacturer” has been replaced with “the transport authority
and the train manufacturer”.]
3.1.11
generic application
application which contains all mandatory and all or a subset of optional functions, with
predefined configurability and customisable for different specific applications
[SOURCE: IEC 60050-821:2017, 821-01-56, modified – “functions” has been removed after
“mandatory”.]
3.1.12
generic product
product independent of applications, fulfilling predefined boundary conditions, interfaces and
functionality (black box)
EXAMPLE Point machines, axle counters, real-time operating systems, fail-safe computer platforms without
application software.
[SOURCE: IEC 60050-821:2017, 821-01-57, modified – In the example, “Examples include” has
been removed, and “and fail-safe” has been replaced by “fail-safe”.]

– 12 – IEC 62290-1:2025 © IEC 2025
3.1.13
grade of automation
automation level of train operation, in which urban guided transport (UGT) can be operated,
resulting from sharing responsibility for given basic functions of train operation between
operations staff and system
[SOURCE: IEC 60050-821:2017, 821-01-58, modified – “between the” has been replaced by
“between”, “the urban guided transport management and command/control” and “(UGTMS)”
have been removed and the Note 1 to entry has been omitted.]
3.1.14
headway
minimum time interval between consecutive trains allowed by the signalling system
[SOURCE: IEC 60050-821:2017, 821-02-54, modified – The word "signal" deleted from term.]
3.1.15
interchangeability,
capability of system components identified in this document to be procured from any number of
suppliers and replaced without any substantial change in functionality or performance
Note 1 to entry: Interchangeability also allows the system to adapt to technology evolutions without significant
modification to its architecture.
[SOURCE: IEC 60050-821:2017, 821-01-60, modified – “identified in this document” has been
added and in the Note 1 to entry, “be adapted” has been replace by “adapt”.]
3.1.16
interlocking,
interdependent liaison between the control levers or the electrical control circuits of different
apparatus such as points and signals, which makes it impossible to place them in positions
which are unsafe
Note 1 to entry: In English, the term "interlocking" refers also to the place where interlocking is achieved.
Note 2 to entry: In French, the term "enclenchement" refers also to the individual locking of an apparatus such as
a pair of points.
Note 3 to entry: For the purposes of this document, the term "interlocking" also refers to an apparatus ensuring the
interlocking functionality.
[SOURCE: IEC 60050-821:2017, 821-05-02, modified – Note 3 to entry added, and the words
"a pair of" added in Note 2 to entry.]
3.1.17
interoperability
interoperability of a transport network
ability of a transport network to operate trains and infrastructures to provide, accept and use
services so exchanged without any substantial change in functionality or performance
Note 1 to entry: The interoperability rests on all the regulatory, technical and operational conditions which are met
in order to satisfy all the defined requirements applicable to the given grade of automation, irrespective of which
supplier provides which components or systems.
[SOURCE: IEC 60050-821:2017, 821-01-61, modified – “exchanged in such as way that there
is no” has been replaced with “so exchanged without any” and in the Note 1 to entry “This ability
depends” has been replaced with “The interoperability rests” and “must be” has been replaced
with “are”.]
3.1.18
management
process by which, in UGTMS,
– to conduct scheduled, efficient and reliable train services, and
– to handle degraded modes and abnormal situations
3.1.19
mandatory function
function compulsory for any UGTMS application depending on the GOA and developed in
compliance with the UGTMS requirements
Note 1 to entry: Requirements of mandatory functions are also mandatory unless they are marked as optional.
3.1.20
mission
mission of a train
non-safety-related instruction for guiding a train for a journey from one defined location (e.g.
terminal station, transfer track) to another defined location including intermediate stops for
passenger transfer and possibly needed actions of a train (e.g. turn back) including time
constraints
[SOURCE: IEC 60050-821:2017, 821-01-62, modified – “and, possibly, necessary actions of
the” has been replaced by “and possibly needed actions of a”.]
3.1.21
movement authority
permission for a train to run, within the constraints of the infrastructure, up to a specific location
[SOURCE: IEC 60050-821:2017, 821-01-63, modified – “safely” has been removed.]
3.1.22
non-operative UGTMS trains
non-UGTMS trains and UGTMS trains with inoperative UGTMS onboard equipment
3.1.23
non-stopping area
area where a train is allowed to enter only if it can clear it completely
3.1.24
non-UGTMS train
non-UGTMS equipped train
3.1.25
operations control centre
OCC
centre from which operation of the line or the network is supervised and managed
[SOURCE: IEC 60050-821:2017, 821-01-64]

– 14 – IEC 62290-1:2025 © IEC 2025
3.1.26
operations control HMI
external central human machine interface (HMI) (at operations control centre, OCC) and
external local human machine interface, if any, located in decentralized operations control
rooms
[SOURCE: IEC 60050-821:2017, 821-01-65, modified – “external” has been added twice, ”the
operations control centre, OCC” has been replaced with “operations control centre, OCC”,
“and/or” replaced by “and”, “(if any)” by “, if any” and “located in decentralized operations control
rooms” has been added.]
3.1.27
operations staff
staff authorised to perform tasks concerning train operation or direct service to passengers
[SOURCE: IEC 60050-821:2017, 821-01-66]
3.1.28
optional function
function not compulsory for a defined grade of automation
Note 1 to entry: For a specific UGTMS application, the transport authority has to decide if it uses it or not; if yes, it
means this function is compliant with the UGTMS requirements, in order to obtain interchangeable and interoperable
components.
3.1.29
reporting train
UGTMS train able to report its location and other relevant information
3.1.30
rollaway
unintended movement of the train in either a forward or reverse direction
3.1.31
route,
predetermined path for a traffic movement
[SOURCE: IEC 60050-821:2017, 821-01-22]
3.1.32
safe braking model
analytical representation of a train's performance while decelerating to a complete stop,
allowing for a combination of worst-case influencing factors and failure scenarios
3.1.33
safe place
area within the network of an operator where evacuation of passengers can be performed,
depending on current operational conditions, with a minimum of risks to the passengers
EXAMPLE Stations, refuges on the line.
3.1.34
safety-related command
operator triggered command whose execution has an impact on safety

3.1.35
service brake
braking applied by the train operator or the UGTMS onboard equipment to control train speed
Note 1 to entry: The service brake takes into account passengers’ comfort, economic and environmental
considerations.
3.1.36
signal,
visual or acoustic indication transmitted to the staff entrusted to observe it, generally concerning
the movements of railway vehicles, or apparatus by means of which an indication is given
[SOURCE: IEC 60050-821:2017, 821-02-01, modified – Definition rephrased with “visual or
acoustic indication transmitted to the staff entrusted to observe it, generally concerning the
movements of railway vehicles, or apparatus by means of which an indication is given” and
Note 1 to entry has been omitted.]
3.1.37
specific application
application designed for a particular realisation based on a customised generic application
[SOURCE: IEC 60050-821:2017, 821-01-74]
3.1.38
spot transmission
track to train transmission that can only take place when the train passes the information point
[SOURCE: IEC 60050-821:2017, 821-03-50]
3.1.39
station
place where trains stop to allow passengers to embark and disembark
3.1.40
supervise
to monitor the performance and the status of a system and initiate control when necessary
[SOURCE: IEC 60050-821:2017, 821-01-75]
3.1.41
train detection
safe recognition of the presence or absence of any trains on a defined section of the track or
at a given point
[SOURCE: IEC 60050-821:2017, 821-03-51]
3.1.42
train integrity
state of the train being complete
Note 1 to entry: "Complete" means that no car is unduly separated from the train.
[SOURCE: IEC 60050-821:2017, 821-03-52, modified – “(no car unduly separated from the
train) ” has been deleted, to create instead the Note 1 to entry.]

– 16 – IEC 62290-1:2025 © IEC 2025
3.1.43
train HMI
external HMI, located onboard trains in train operator’s cabin or at train attendant’s place
Note 1 to entry: The external train HMI comprises all means intended for manual, visual and audible interactions
with operational staff onboard the train.
3.1.44
train operator
operations staff who is onboard and is in charge of driving the train, or able to drive it for
degraded situations
3.1.45
train stop
device located adjacent to a running rail which is so positioned that, if the signal with which it
is associated is displaying danger, it actuates the braking system of a train which passes this
signal
Note 1 to entry: Alternatively, when a line speed restriction exists, the train stop can be used independently of a
signal.
[SOURCE: IEC 60050-821:2017, 821-08-10, modified – “Alternatively,” has been added in
Note 1 to entry.]
3.1.46
transfer track
transition area between unequipped part of a network and UGTMS territory
3.1.47
transport authority
entity which is responsible for safe and orderly operation of a transport system
[SOURCE: IEC 60050-821:2017, 821-01-77]
3.1.48
UGTMS onboard equipment
UGTMS equipment installed on the train
3.1.49
UGTMS operations control equipment
UGTMS equipment performing centralised command/control, management and supervising
functions and providing interface for HMI
3.1.50
UGTMS train
UGTMS equipped train
3.1.51
UGTMS wayside equipment
equipment set either at trackside locations or elsewhere along the line, which is not part of
UGTMS operations control equipment
3.1.52
zone of protection
zone where no train is allowed to run, as a response to various kinds of incidents except
identified hazardous situations for which trains can leave the zone
[SOURCE: IEC 60050-821:2017, 821-01-79, modified – “in which” has been replaced with
“where”, “incident” with “incidents” and “are permitted to” with “can”.]

3.2 Abbreviated terms
AC alternating current
CCTV closed circuit television
DC direct current
DCS data communication system
FFFIS form-fit functional interface specification
FIS functional interface specification
FPA flank protection area
FRS functional requirements specification
GOA grade of automation
HMI human machine interface
HVAC heating ventilation and air conditioning
M mandatory
O optional
OCC operations control centre
OVL overlap
RAMS reliability, availability, maintainability and safety
RD route destination
REQ requirement
RO route origin
SRS system requirements specification
UGT urban guided transport
UGTMS urban guided transport management and command/control system
4 Concepts
4.1 Urban guided transport (UGT)
4.1.1 General
UGT is defined as a public transportation system in an urban environment with self-propelled
vehicles and operated on a guideway, which is segregated from general road and pedestrian
traffic.
Trains of transport undertakings (e.g. underground/metro, tram, regional and suburban
operators) are included even if they are operated under specific railway regulations, when they
are designated to operate on UGTMS infrastructure. In this case, trains of different transport
undertakings shall fulfil the conditions of interoperability and the requirements given by specific
regulations.
4.1.2 Operations
Operation is considered as the totality of all means to effect the transportation of passengers,
including the training of operations staff and maintenance of installations and trains.
Train operations include command and control of routes, passenger transfer, driving of trains
and shunting.
– 18 – IEC 62290-1:2025 © IEC 2025
4.1.3 Operational facilities
Operational facilities are all those installations and equipment which serve operations and
include the following (an example of track layout is shown in Figure 2):
– electrotechnical installations (traction power supply, lighting equipment, communication
equipment, command and control system, management system, maintenance system, etc.);
– guideway for movement of trains (points, derailers, crossings, crossings with movable frogs,
flood gates, platform tracks, tracks between stations, etc.). Platform tracks and tracks
between stations might be used for one way or bi-directional operation;
– stations, which are places where passengers transfer between the wayside and a train is
achieved; a station comprises waiting area(s) (with, optionally, installations for passenger
service and ticketing) and passenger transfer area(s) as interface between platform and
train;
– sidings, which are tracks that can be used for the turn back or storing of trains; sidings are
normally not used for passenger transport;
– depots, which are used for maintenance and storage of trains and normally not used for
passenger transport.
Figure 2 – Example of track layout
4.1.4 Train
Train is defined as a guided vehicle which may operate as a single unit or as a composition of
units (for passenger service, or for other purpose). A unit is made of one or more cars. The
composition of a unit will not be changed during train operation.
The coupling and the uncoupling of trains can be done during train operation.
4.1.5 Staff
Operations staff are notably persons who are involved directly in the process of passenger
transportation (like train operators, operators in OCC, supervisors on platforms or in OCC).
Maintenance staff are persons who are involved in maintenance of i
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