IEC 62290-1:2014

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

IEC 62290-1:2014 provides an introduction to the standard and deals with the main concepts, the system definition, the principles and the basic functions of UGTMSs (Urban Guided Transport Management and Command/Control Systems) for use in urban guided passenger transport lines and networks. This part of IEC 62290 is applicable for new lines or for upgrading existing signalling and command control systems. The main technical changes with regard to the previous edition are as follows: removing the concept of grade of line, aligning IEC 62290-1 with IEC 62290-2.

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

L'IEC 62290-1:2014 fournit une introduction à la norme, 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. Elle est applicable aux lignes nouvelles ou à l'évolution des systèmes de contrôle/commande et de signalisation existants. Les principaux changements techniques par rapport à l'édition précédente sont les suivants: suppression du concept de catégorie de ligne (GOL), alignement de l'IEC 62290-1 avec l'IEC 62290-2.

General Information

• Status: Published
• Publication Date: 09-Jul-2014
• 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: 10-Jul-2014
• Completion Date: 30-Jun-2014

Relations

• Revises: IEC 62290-1:2006 - Railway applications - Urban guided transport management and command/control systems - Part 1: System principles and fundamental concepts
• Effective Date: 05-Sep-2023
• Revised: IEC 62290-1:2025 - Railway applications - Urban guided transport management and command/control systems - Part 1: System principles and fundamental concepts
• Effective Date: 05-Sep-2023

Overview

IEC 62290-1:2014 is an international standard developed by the International Electrotechnical Commission (IEC) that establishes the system principles and fundamental concepts for Urban Guided Transport Management and Command/Control Systems (UGTMS). These systems are designed for use on urban guided passenger transport lines and networks, covering the full spectrum of operations from manual to fully automated (Grades of Automation GOA1 to GOA4).

This standard is essential for transport authorities, system integrators, and manufacturers involved in the urban rail sector, particularly for new lines or upgrading existing signalling and command control systems. It focuses on achieving interoperability, interchangeability, and compatibility within urban guided transport systems to ensure seamless operations and enhanced passenger service quality.

Key Topics

• System Definition and Concepts
  The standard defines key terms and concepts related to urban guided transport, including operational facilities, rolling stock, passenger considerations, and staff roles. It also clarifies the system environment and boundaries for UGTMS, facilitating a clear understanding of system scope.

• Grades of Automation (GOA)
  IEC 62290-1 explains the different grades of automation applied in urban transit systems, from semi-automated to unattended operations. It streamlines the approach by aligning with IEC 62290-2 while removing obsolete concepts like the grade of line, focusing on practical automation levels applicable to various urban networks.

• Basic Functions and System Requirements
  The standard outlines the fundamental functions necessary for train operation and overall system management. This includes operation management, supervision, and ensuring reliability, availability, maintainability, and safety (RAMS). It addresses local conditions, energy efficiency, electromagnetic compatibility, and the needs of passengers with reduced mobility.

• Interoperability and Compatibility
  IEC 62290-1 emphasizes the importance of designing UGTMS components that are interoperable, interchangeable, and compatible, especially when integrating new equipment with existing infrastructure or neighboring networks. This facilitates upgrades and expansion while minimizing disruptions.

• Operation Modes and Emergency Handling
  It covers nominal, degraded, and emergency operation modes, defining system behavior and performance requirements to maintain safety and service continuity under different scenarios.

Applications

• New Urban Transport Systems
  This standard guides the development of completely new urban guided transport lines, ensuring that command and control systems meet international best practices for automation, safety, and passenger management.

• Upgrading Existing Systems
  IEC 62290-1 is ideal for modernizing or extending signaling and command control infrastructure to incorporate advanced automation or improve interoperability within urban transport networks.

• Automation Level Enhancements
  Transport authorities can use the standard to implement or increase automation levels (GOA), progressing from manual operations to unattended train operation with consistent safety and operational standards.

• Interoperability Projects
  It helps in designing solutions that allow different urban guided transport systems or lines to work together seamlessly, enhancing network integration and operational flexibility.

Related Standards

• IEC 62290-2
  Complements Part 1 by providing detailed specifications on system architecture and interfaces, further assisting with the implementation of UGTMS.

• IEC 61508
  Addresses functional safety of electrical/electronic/programmable systems and supports the safety considerations outlined in IEC 62290-1.

• ISO/IEC Directives, Part 2
  Provides the framework for drafting International Standards, ensuring consistency with the methodologies used in IEC 62290-1.

• Other Railway Signalling Standards
  Authorities may also consider regional or national railway signaling standards in conjunction with IEC 62290-1 to comply with regulatory requirements.

---

Keywords: IEC 62290-1, urban guided transport, UGTMS, railway signalling, command/control systems, urban rail automation, grades of automation, interoperability, transport management systems, railway standards, urban transit systems, travel safety, public transport upgrading, automatic train control.

Standards Content (Sample)

IEC 62290-1 ®
Edition 2.0 2014-07
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 2.0 2014-07
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
PRICE CODE
INTERNATIONALE
CODE PRIX V
ICS 45.060 ISBN 978-2-8322-1648-4

– 2 – IEC 62290-1:2014 © IEC 2014
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 9
2 Normative references . 9
3 Terms, definitions and abbreviations . 9
3.1 Terms and definitions. 10
3.2 Abbreviations . 14
4 Concepts . 15
4.1 Urban guided transport (UGT) . 15
4.1.1 General . 15
4.1.2 Operations . 15
4.1.3 Operational facilities . 15
4.1.4 Rolling stock . 16
4.1.5 Staff . 16
4.1.6 Passengers . 16
4.2 Grade of automation . 16
4.2.1 Descriptions . 16
4.2.2 Implementation of grades of automation . 18
4.2.3 Grades of automation covered by UGTMS . 18
4.3 Operation management and supervision . 19
4.4 Interoperability, interchangeability, compatibility and adaptability . 19
4.4.1 General . 19
4.4.2 Interoperability. 19
4.4.3 Interchangeability . 19
4.4.4 Compatibility . 19
4.4.5 Adaptability . 20
5 System environment and boundaries . 20
6 General requirements and description of the basic functions . 21
6.1 General requirements . 21
6.1.1 System approach . 21
6.1.2 RAMS requirements . 21
6.1.3 Electromagnetic compatibility . 21
6.1.4 Energy saving . 21
6.1.5 Local conditions . 21
6.1.6 Intermodality between networks . 22
6.1.7 Interoperability between neighbouring UGTMS fitted networks . 22
6.1.8 Measures to ensure the movement of passengers with reduced mobility . 22
6.1.9 Nominal mode, degraded modes, emergency situation . 22
6.1.10 Basic system performances . 22
6.1.11 Requirements for upgrading GOA . 23
6.1.12 Requirements for adding new parts of line . 23
6.2 Description of the basic functions . 23
6.2.1 General . 23
6.2.2 Basic functions for train operation. 23
6.2.3 Basic functions for operation management and supervision . 26
Bibliography . 29

Figure 1 – The three-step process followed by the UGTMS standard . 8
Figure 2 – Example of track layout . 16
Figure 3 – System environment . 20

Table 1 – Grades of automation . 17

– 4 – IEC 62290-1:2014 © IEC 2014
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
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 62290-1 has been prepared by IEC technical committee 9:
Electrical equipment and systems for railways.
This second edition cancels and replaces the first edition issued in 2006. It constitutes a
technical revision.
The main technical changes with regard to the previous edition are as follows:
– removing the concept of grade of line (GOL),
– putting IEC 62290-1 in line with IEC 62290-2.

The text of this standard is based on the following documents:
FDIS Report on voting
9/1913/FDIS 9/1941/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
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. (See also introduction to this standard.)
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
– 6 – IEC 62290-1:2014 © IEC 2014
INTRODUCTION
IEC 62290 standard 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. This series does not apply to lines that are operated
under specific railway regulations, unless otherwise specified by the authority having
jurisdiction.
These systems are designated here 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.
This 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 objective of this series is to achieve interoperability, interchangeability and
compatibility.
This series is a recommendation for those transport authorities wishing to introduce
interoperable, interchangeable and compatible equipment.
It is the responsibility of the transport authority concerned in accordance with the authority
having jurisdiction to decide on how to apply this series and to take into account their
particular needs.
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.
This series defines a catalogue of UGTMS requirements split into mandatory and optional
functions. The functions used are based on the given grade of automation. 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 this series.
According to IEC 62278, it is the responsibility of the transport authority, in agreement with
the authority having jurisdiction, 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 have to be 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.
Standard series IEC 62290 is intended to consist of four parts:
– Part 1 “System principles and fundamental concepts” provides an introduction to the
standard and deals with the main concepts, the system definition, the principles and the

main basic functions of UGTMS (Urban Guided Transport Management and
Command/Control Systems).
The three other parts correspond to the three steps (see Figure 1) required in the process of
specifying UGTMS and are to be used accordingly.
– Part 2 “Functional requirements specification” specifies the functional requirements
associated to the basic functions provided by Part 1, within the system boundaries and
interfaces as defined in Figure 3 of Part 1.
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. interfaces to passenger information and passenger
surveillance systems). Requirements of functions have the same allocation, unless they
are marked otherwise.
– Part 3 (under consideration) “System requirements specifications” deals with the
architecture of the system and the allocation of the requirements and functions identified
in part 2 to architecture constituents.
The SRS (System Requirements Specification) specifies the architecture of a UGTMS
system, with mandatory and optional constituents.
– Part 4 (under consideration) “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 constituents identified in part 3.
For interfaces between UGTMS constituents, the logical interface or FIS (Functional
Interface Specification) and/or the physical and logical interface or FFFIS (Form Fit
Functional Interface Specification) will be considered.
NOTE The specific structures of part 3 and part 4 will be established following completion of part 2 to
accommodate optional and mandatory constituents, and to reflect local conditions. In principle, only one FIS or/and
FFFIS will be defined for the same interface. However, when justified in some cases, several FIS or several FFFIS
will be defined for the same interface.

– 8 – IEC 62290-1:2014 © IEC 2014

Functional
requirements
(FRS)
System requirements
(SRS)
Interface requirements
(FIS or/and FFFIS)
IEC  1339/06
Figure 1 – The three-step process followed by the UGTMS standard
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 authorities
having jurisdiction to be assured that generic applications delivered by different suppliers will
cover at least the same functionality as specified in this part of IEC 62290.
Requirements which are established by this 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 standard and deals with the main
concepts, the system definition, the principles and the basic functions of UGTMSs (Urban
Guided Transport Management and Command/Control Systems) for use in urban guided
passenger transport lines and networks. This part of IEC 62290 is applicable for new lines or
for upgrading existing signalling and command control systems.
This part of IEC 62290 is applicable to applications using:
• continuous data transmission,
• continuous supervision of train movements by train protection profile,
• localisation of trains by external wayside equipment or reporting trains.
This standard is not applicable to existing command and control systems or projects in
progress prior to the effective date of this standard.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and
are indispensable for its application. 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
3 Terms, definitions and abbreviations
For the purposes of this document, the following terms, definitions and abbreviations apply.

– 10 – IEC 62290-1:2014 © IEC 2014
3.1 Terms and definitions
3.1.1
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 this function are not necessarily interchangeable nor interoperable.
3.1.2
automatic mode
operation in semi-automated train operation (GOA2), driverless train operation (GOA3),
unattended train operation (GOA4)
3.1.3
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,
– inside UGTMS;
this order can be sent:
– to an external system,
– inside UGTMS.
3.1.4
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.
3.1.5
compatibility
capability of the UGTMS system to co-exist with other systems in the same transport network
without any interference
3.1.6
constituent
any elementary component, group of components, subassembly or complete assembly of
equipment incorporated or intended to be incorporated into UGTMS
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.
3.1.8
driving on sight
manual driving carried out at a speed that allows the driver to stop the train before reaching
any obstacle on the track
3.1.9
emergency brake
brake or combination of brakes which ensures that the train will stop with the brake rate
agreed between authority having jurisdiction, transport authority and train manufacturer
3.1.10
generic application
application which contains all mandatory and all or a subset of optional functions, with
predefined configurability and customisable for different specific applications
3.1.11
generic product
product independent of applications, fulfilling predefined boundary conditions, interfaces and
functionality (black box)
EXAMPLES: point machines, axle counters, real-time operating systems, fail-safe computer platforms without
application software.
3.1.12
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
3.1.13
interchangeability
capability of system components identified in this standard to be procured from any number of
suppliers and replaced without any substantial change in functionality or performance
Note 1 to entry: It also allows the system to adapt to technology evolutions without significant modification to its
architecture.
3.1.14
interlocking
interdependent liaison between the control levers or the electrical control circuits of different
apparatus such as points, 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 standard the term “interlocking” also refers to an apparatus ensuring the
interlocking functionality.
[SOURCE: IEC 60050-821:1998, 821-05-02]
3.1.15
interoperability
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: This ability rests on all the regulatory, technical and operational conditions which must be 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.
3.1.16
management
in UGTMS, it is the process by which:
– to conduct scheduled, efficient and reliable train services

– 12 – IEC 62290-1:2014 © IEC 2014
– to handle degraded modes and abnormal situations
3.1.17
mandatory function
function compulsory for any UGTMS application depending on the GOA and has to be
developed in compliance with the UGTMS requirements in order to obtain interchangeable
and interoperable components
Note 1 to entry: Requirements of mandatory functions are also mandatory unless they are marked as optional.
3.1.18
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
3.1.19
movement authority
permission for a train to run, within the constraints of the infrastructure, up to a specific
location
3.1.20
non-operative UGTMS trains
non-UGTMS equipped trains and trains with inoperative UGTMS onboard equipment
3.1.21
operations control centre
OCC
centre from which operation of the line or the network is supervised and managed
3.1.22
operations control HMI
external central Human Machine Interface (HMI) (at Operations Control Centre OCC) and/or
local Human Machine Interface (HMI) (if any)
3.1.23
operations staff
staff authorised to perform tasks concerning train operation or direct service to passengers
3.1.24
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,
this function shall be compliant with the UGTMS requirements, in order to obtain interchangeable and interoperable
components.
3.1.25
reporting train
UGTMS-equipped train able to report its location and other relevant information
3.1.26
route
predetermined path for a traffic movement
[SOURCE: IEC 60050-821:1998, 821-01-22]

3.1.27
safe places
areas 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 (e.g.
stations, refuges on the line)
3.1.28
service brake
braking applied by the driver or the train UGTMS onboard equipment to control train speed
Note 1 to entry: This takes into account passengers comfort, economic and environmental considerations.
3.1.29
signal
– conventional visual or acoustic indication, generally concerning the movements of railway
vehicles and transmitted to the staff entrusted to observe it
– apparatus by means of which a conventional indication is given
[SOURCE: IEC 60050-821:1998, 821-02-01]
3.1.30
specific application
application designed for a particular realisation based on a customised generic application
3.1.31
spot transmission
track to train transmission that can only take place when the train passes the information
point
3.1.32
station
place where trains stop to allow passengers to embark and disembark
3.1.33
supervise
to monitor the performance and the status of a system and initiate control when necessary
3.1.34
train detection
safe recognition of the presence or absence of any trains on a defined section of the track or
at a given point
3.1.35
train integrity
state of the train being complete (no car unduly separated from the train)
3.1.36
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; alternatively, when a line speed restriction exists, it may be used independently of a
signal
[SOURCE: IEC 60050-821:1998, 821-08-10]
3.1.37
transfer track
transition area between unequipped part of a network and UGTMS territory

– 14 – IEC 62290-1:2014 © IEC 2014
3.1.38
transport authority
entity which is responsible for safe and orderly operation of a transport system
3.1.39
UGTMS onboard equipment
UGTMS equipment installed on the train
3.1.40
UGTMS operations control equipment
UGTMS equipment performing centralised command/control, management and supervising
functions and providing interface for HMI
3.1.41
UGTMS wayside equipment
equipment not on board trains, set either at trackside locations or elsewhere along the line or
in the network
3.1.42
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
3.2 Abbreviations
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
UGTMS OB Onboard UGTMS equipment
UGTMS WS Wayside UGTMS equipment

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.
Railway infrastructures which are part of a railway network operated under specific railway
regulations are excluded, unless otherwise specified by the authority having jurisdiction.
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 rolling stock.
Train operations include command and control of routes, passenger transfer, driving of trains
and also shunting.
4.1.3 Operational facilities
Operational facilities are all those installations and equipment which serve operations such as
(an example of track layout is shown in Figure 2):
– electrotechnical installations (like traction power supply, lighting equipment, communica-
tion equipment, command and control system, management system, maintenance system,
etc.);
– guideway for movement of trains (points, derailers, crossings, crossings with movable
frogs, level crossings, 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 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 are considered as a place for storing rolling stock and turn back of trains. Sidings
are normally not used for passenger transport;
– depots which are used for maintenance and storage of rolling stock and normally not used
for passenger transport.
– 16 – IEC 62290-1:2014 © IEC 2014

Depot
Flood gates
Station
Siding Siding
Crossing
Platform Platform
Point
track track
Level
crossing
Track between
stations
IEC  1340/06
Figure 2 – Example of track layout
4.1.4 Rolling stock
Rolling stock is considered as a guided vehicle which may operate as a single unit or as a
composition of units. A unit may consist of one or more cars, which cannot be uncoupled
during train operation.
Trains are units of rolling stock operating as passenger or non-passenger trains consisting of
one or more units. If a train consists of more than one unit it can be split during train
operation.
4.1.5 Staff
Operations staff are notably persons who are involved directly in the process of passenger
transportation (like drivers, operators in OCC, supervisors on platforms or in OCC).
Maintenance staff are persons who are involved in maintenance of infrastructure and rolling
stock.
Rescue staff are persons who are involved in rescue of persons notably located inside
stations and rolling stock.
4.1.6 Passengers
Passengers are users of the transportation system, noted that there are specific passenger
needs for handicapped passengers, passengers with reduced mobility, children and
passengers with luggage.
4.2 Grade of automation
4.2.1 Descriptions
4.2.1.1 General
UGT can be operated at different grades of automation defined below. The definition of
grades of automation arises from apportioning responsibility for given basic functions of train
operation between operations staff and system.
The mandatory basic functions of train operation for a given grade of automation on a line or
network are defined in the following subclauses and Table 1.
Non-mandatory basic functions of train operation for a given grade of automation may also be
realised by the system.
The grade of automation will influence the requirements of operation, operational facilities,
rolling stock, staff. The requirements shall take into account the behaviour of passengers.

Table 1 – Grades of automation
On-sight train Non-automated train Semi-automated Driverless train Unattended train
operation operation train operation operation operation
Basic functions of train operation
GOA0 GOA1 GOA2 GOA3 GOA4
Ensure safe Ensure safe route x system system system system
movement of (points
trains command/control in
system)
Ensure safe separation of trains x system system system system
Ensure safe speed x x system system system
(partly supervised by
system)
Drive train Control acceleration and braking x x system system system
Supervise Prevent collision with obstacles x x x system system
guideway
Prevent collision with persons on tracks x x x system system
Supervise Control passengers doors x x x x system
passenger
Prevent injuries to persons between cars or x x x x system
transfer
between platform and train
Ensure safe starting conditions x x x x system
Operate a train Put in or take out of operation x x x x system
Supervise the status of the train x x x x system
Ensure detection Detect fire/smoke and detect derailment, detect x x x x system and/or
and management loss of train integrity, manage passenger requests staff in OCC
of emergency (call/evacuation, supervision)
situations
NOTE x = responsibility of operations staff (may be realised by UGTMS system) system = shall be realised by UGTMS system

– 18 – IEC 62290-1:2014 © IEC 2014
4.2.1.2 Grade of automation 0 (GOA0): On-sight train operation
In this grade of automation, the driver has full responsibility and no system is required to
supervise his activities. However, points and single tracks can be partially supervised by the
system.
4.2.1.3 Grade of automation 1 (GOA1): Non-automated train operation
In this grade of automation, the driver is in the front cabin of the train observing the guideway
and stops the train in the case of a hazardous situation. Acceleration and braking are
commanded by the driver in compliance with wayside signals or cab-signal. The system
supervises the activities of the driver. This supervision may be done at specific locations, be
semi-continuous or continuous, notably in respect of the signals and the speed. Safe
departure of the train from the station, including door closing, is the responsibility of the
operations staff.
4.2.1.4 Grade of automation 2 (GOA2): Semi-automated train operation
In this grade of automation, the driver is in the front cabin of the train observing the guideway
and stops the train in the case of a hazardous situation. Acceleration and braking is
automated and the speed is supervised continuously by the system. Safe departure of the
train from the station is the responsibility of the operations staff (door opening and closing
may be done automatically).
4.2.1.5 Grade of automation 3 (GOA3): Driverless train operation
In this grade of automation, additional measures are needed compared to GOA2 because
there is no driver in the front cabin of the train to observe the guideway and stop the train in
case of a hazardous situation.
In this grade of automation, a member of the operations staff is necessary
...