Railway applications - Signalling and control systems for non UGTMS Urban Rail systems

This document specifies minimum functional requirements for urban rail signalling and control systems - which operate on line of sight or using automatic interlock signalling with intermittent train control, - not covered by the existing UGTMS standard EN 62290 series, - not forming a part of an urban traffic control system but possibly interfaced with such systems. The document is restricted to minimum functional requirements which allow users to define more specific requirements based on the given framework of the system requirements at top level. This document is not applicable to command and control systems for urban rail using continuous data transmission and continuous supervision of train movements by train protection profile (already covered by the EN 62290 series).

Bahnanwendungen - Signal- und Zugsicherungssysteme für städtische Schienenbahnen ohne UGTMS

Applications ferroviaires - Systèmes de signalisation et de contrôle/commande des transports guidés urbains non UGTMS

Le présent document spécifie les exigences fonctionnelles minimales pour les systèmes de signalisation et de contrôle/commande des transports guidés urbains : - qui circulent en conduite à vue ou qui utilisent des signaux de cantonnement automatiques avec supervision ponctuelle des trains ; - qui ne sont pas couverts par la série EN 62290 relative aux systèmes de contrôle/commande et de gestion des transports guidés urbains (UGTMS) ; - qui ne relèvent pas d'un contrôleur de carrefour, mais qui peuvent être interfacés avec de tels systèmes. Le présent document se limite aux exigences fonctionnelles minimales qui permettent aux utilisateurs de définir des exigences plus spécifiques en fonction de la démonstration de sécurité globale du système. Le présent document ne s'applique pas aux systèmes de contrôle/commande des transports guidés urbains qui assurent en continu la transmission des données et le contrôle des mouvements des trains par courbe de contrôle de vitesse (ces systèmes étant déjà couverts par la série EN 62290).

Železniške naprave - Signalni in kontrolni sistemi za urbane železniške sisteme, ki niso v sistemu UGTMS

General Information

Status
Published
Publication Date
25-Jul-2019
Withdrawal Date
07-Jul-2022
Current Stage
6060 - Document made available - Publishing
Start Date
26-Jul-2019
Due Date
15-Oct-2019
Completion Date
26-Jul-2019

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SLOVENSKI STANDARD
01-junij-2021
Železniške naprave - Signalni in kontrolni sistemi za urbane železniške sisteme, ki
niso v sistemu UGTMS
Railway applications - Signalling and control systems for non UGTMS Urban Rail
systems
Bahnanwendungen - Nicht UGTMS Signal- und Zugbeeinflussungssysteme für den
städtischen schienengebundenen Personennahverkehr
Applications ferroviaires - Systèmes de signalisation et de contrôle pour systèmes
ferroviaires urbains non-UGTMS
Ta slovenski standard je istoveten z: EN 50668:2019
ICS:
35.240.60 Uporabniške rešitve IT v IT applications in transport
prometu
45.020 Železniška tehnika na Railway engineering in
splošno general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 50668
NORME EUROPÉENNE
EUROPÄISCHE NORM
July 2019
ICS 93.100
English Version
Railway applications - Signalling and control systems for non
UGTMS Urban Rail systems
Applications ferroviaires - Systèmes de signalisation et de Bahnanwendungen - Signal- und Zugsteuerungssysteme
contrôle pour systèmes ferroviaires urbains non-UGTMS für städtische Schienenbahnsysteme ohne UGTMS
This European Standard was approved by CENELEC on 2019-07-08. CENELEC 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-CENELEC
Management Centre or to any CENELEC 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 CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2019 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 50668:2019 E
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms, definitions and abbreviations . 5
3.1 Terms and definitions . 5
3.2 Abbreviations . 6
4 General provisions and boundary conditions . 7
4.1 General . 7
4.2 Independent point control . 8
4.3 Single track section control . 9
4.4 Level crossing control . 9
4.5 Route control . 9
5 Hazards to be covered . 9
5.1 General . 9
5.2 Independent point area . 10
5.3 Single track section area . 11
5.4 Level crossing area . 12
5.5 Route control area . 13
5.5.1 Hazardous situations in TOS/GOA0. 13
5.5.2 Hazardous situations in NTO/GOA1a . 15
6 Functional requirements . 16
6.1 General . 16
6.2 Independent point control . 16
6.2.1 General . 16
6.2.2 Set and interlock points . 17
6.2.3 Signalling of points. 18
6.3 Single track section control . 19
6.3.1 General . 19
6.3.2 Set and secure single track section . 20
6.3.3 Signalling of single track section. 21
6.4 Level Crossing Control . 21
6.4.1 General . 21
6.4.2 Set level crossings . 22
6.4.3 Signalling of level crossings for rail traffic . 23
6.5 Route control . 24
6.5.1 General . 24
6.5.2 Set and secure routes . 25
6.5.3 Display movement authority . 27
6.6 Interface with signal aspects of road traffic controller . 28
Bibliography . 29

European foreword
This document [EN 50668:2019] has been prepared by CLC/SC 9XA “Communication, signalling and
processing systems” of CLC/TC 9X “Electrical and electronic applications for railways”.
The following dates are fixed:
• latest date by which the existence of this document has to (doa) 2020-01-08
be announced at national level
• latest date by which this document has to be implemented (dop) 2020-07-08
at national level by publication of an identical national
standard or by endorsement
• latest date by which the national standards conflicting with (dow) 2022-07-08
this document have to be withdrawn
This document has been prepared under a mandate (M/486) given to CENELEC by the European Commission
and the European Free Trade Association.
The 2013 CEN/CLC Guide 26, Railway applications – Preparation of standards for urban rail systems design,
construction, manufacture, operations and maintenance, has been used as guidance for the preparation of this
document.
Introduction
This document covers systems restricted to on-sight train operation (TOS/GOA0) and non-automated train
operations (NTO/GOA1 with intermittent supervision), and covers signalling on tramways and other urban rail
systems which do not fall directly within either existing railway or highway standards. This would typically be for
parts of systems which are along off-street alignment, and which operate to line of sight, or automatic interlock
signalling with intermittent train control (i.e. as defined in the EN 62290 series, GOA0 and GOA1 with
intermittent supervision systems). This document does not conflict with the scope and requirements of the
EN 62290 series.
This document proposes the minimum required functions of signalling systems for guided urban system
operating line of sight and non-automated operations.
This document does not set any operational rules, any system architecture or any rules for application conditions
of technical systems for the different categories of urban rail systems.
In this document GOA1a describes a GOA1 with intermittent supervision systems.
This document covers all GOA0 and GOA1a urban guided transport systems.
Such systems require more functionality and a better safety level than that provided by traffic signal controllers
(as set out in EN 12675) but avoid the requirements inherent in railway signalling systems which from a tramway
perspective may be restrictive operationally and financially.
Numerous states in Europe use these systems to control points, manage train movements along single lines
and prevent conflicts at junctions as well as on at grade crossings with road and pedestrian traffic. Whilst
adopting much of the functional requirements and safeguards used in standard traffic signal controllers, there
is additional functionality required and currently in use to fulfil the needs of urban rail.
Mainline railway signalling systems include a lot of such additional functionality, but in terms of this and the
required safety integrity, they are not ideally suited to the needs of urban rail.
The two fundamentally different approaches for the design of signalling systems are:
• technology as used for traffic signal controllers, or
• technology as used for signalling systems to be developed in accordance with Safety Integrity Levels
sufficient for tramways and urban rail,
both of which are currently in use to some extent on most systems. This may leave system owners and operators
vulnerable to challenge, particularly after an incident, because there is no relevant accepted standard to justify
appropriate use of such equipment.
1 Scope
This document specifies minimum functional requirements for urban rail signalling and control systems:
• which operate on line of sight or using automatic interlock signalling with intermittent train control,
• not covered by the existing UGTMS standard EN 62290 series,
• not forming a part of an urban traffic control system but possibly interfaced with such systems.
The document is restricted to minimum functional requirements which allow users to define more specific
requirements based on the given framework of the system requirements at top level. This document is not
applicable to command and control systems for urban rail using continuous data transmission and continuous
supervision of train movements by train protection profile (already covered by the EN 62290 series).
2 Normative references
There are no normative references in this document.
3 Terms, definitions and abbreviations
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• ISO Online browsing platform: available at http://www.iso.org/obp
• IEC Electropedia: available at http://www.electropedia.org/
3.1 Terms and definitions
3.1.1
external device
device providing external demand inputs to elements of signalling control
Note 1 to entry: The methods of making these demand inputs can vary from simple manual inputs to automatic data
derived inputs from train-borne equipment.
Note 2 to entry: Example of external device:
• Remote inputs from control rooms;
• Input from road traffic controller;
• A request transmitted from a train.
3.1.2
level crossing
level grade crossing
crossing of a urban rail system and
...

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