CLC/TR 50501-1:2007

SLOVENSKI STANDARD
01-oktober-2007
Železniške naprave - Vozna sredstva – Medsebojna izmenjava podatkov med
napravami na železniških vozilih ali med njimi in stabilnimi progovnimi napravami
– 1. del: Slovar podatkov in pravila funkcionalne standardizacije
Rolling stock - Intercommunication between vehicles and train/wayside -- Part 1: Data
dictionary and rules for functional standardisation
Bahnanwendungen - Bahnfahrzeuge - Datenaustausch zwischen Fahrzeugen bzw.
Zug/Strecke -- Teil 1: Datenkatalog und Regeln für die funktionale Standardisierung
Applications ferroviaires - Matériel roulant - Communications entre véhicules et
communications sol/train -- Partie 1: Dictionnaire de données et regles pour la
standardisation fonctionnelle
Ta slovenski standard je istoveten z: CLC/TR 50501-1:2007
ICS:
35.240.60 Uporabniške rešitve IT v IT applications in transport
transportu in trgovini and trade
45.060.01 Železniška vozila na splošno Railway rolling stock in
general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

TECHNICAL REPORT
CLC/TR 50501-1
RAPPORT TECHNIQUE
May 2007
TECHNISCHER BERICHT
ICS 35.240.60; 45.020
English version
Rolling stock –
Intercommunication between vehicles and train/wayside –
Part 1: Data dictionary and rules for functional standardisation

Matériel roulant –  Bahnanwendungen –
Communications entre véhicules Interkommunikation zwischen Fahrzeugen
et communications sol/train – und Fahrweg –
Partie 1: Dictionnaire de données Teil 1: Datenwörterbuch und Regeln
et règles pour la standardization für die funktionale Normung
fonctionnelle
This Technical Report was approved by CENELEC on 2007-01-01.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the
Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B - 1050 Brussels

© 2007 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. CLC/TR 50501-1:2007 E

Foreword
This Technical Report was prepared by SC 9XB, Electromechanical material on board rolling stock, of
Technical Committee CENELEC TC 9X, Electrical and electronic applications for railways.
The text of the draft was submitted to vote and was approved by CENELEC as CLC/TR 50501-1 on
2007-01-01.
__________
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Contents
Page
Introduction . 4
1 Scope . 7
2 Normative references. 7
3 Terms and definitions . 7
4 Reference architecture. 10
4.1 Introduction. 10
4.2 Reference Architecture concept . 10
4.3 Requirement for the STD1 Reference Architecture definition . 11
4.4 Interacting objects. 12
4.5 Functional Architecture. 20
5 Methods for functional modelling . 24
5.3 Process of function class decomposition. 30
5.4 Modelling accessibility of entities and functions: the pattern view. 30
5.5 General modelling rules. 31
5.6 Metric Evaluation Criteria. 33
5.7 Testing. 33
5.8 XML usage. 33
5.9 Deliverables. 38
6 The Data Dictionary. 39
6.1 Introduction. 39
6.2 Structure. 39
6.3 Requirements for management of the Data Dictionary/model repository. 40
Annex A (informative) Related works . 41
Annex B (informative) Functional addressing in railway specifications. 44
Annex C (informative) Process of function class decomposition . 46
Bibliography . 47

Figure 1 – Reference Architecture: Relation cases in the functional communication architecture . 17
Figure 2 – General model structure – Example. 25
Figure 3 – UML Use case diagram – Example. 26
Figure 4 – UML Component diagram – Example . 27
Figure 5 – UML Class diagram – Example . 28
Figure 6 – UML Statechart diagram – Example . 29
Figure 7 – UML Sequence diagram – Example . 30

Introduction
Survey Group SC9XB/SGB1 conclusions
From the conclusion of the works of Survey Group SC 9XB/SGB1, in document CLC/SC9XB(Sec)174
(Bibliography [9]), a series of standards is to be prepared, with the following guiding principles:
• the overall objective is to develop standards for data exchange involving railway vehicle consists,
between themselves or with fixed installations;
• standardisation is focussed to what is necessary for implementing interoperability as defined in
Directive 2001/16/EC (on the interoperability of the Trans-European conventional railway system),
and as will be specified by the bodies in charge of drafting Technical Specifications for Interoperability
(TSI);
• the scope of the work is then limited to international Passenger trains and freight trains in The Trans-
European conventional rail system, excluding the signalling and control-command subsystem. This
does not explicitly exclude High Speed Trains (HST), but excludes formally trams, metros and urban
or suburban trains.
Separate functional standards will be established for freight and Passenger trains. Requirements for
interoperability, including those specified in a set of Technical Specifications for Interoperability (TSI), are
different for these two categories of rolling stock.
The series of standards has been structured as follows, with four categories:
- STD1: data dictionary and rules for functional standardisation;
- STD 2: functions in freight traffic (for a selected set of functions);
- STD 3: functions in passenger traffic (for a selected set of functions);
- STD 4: standardisation of communications procedures.
This document is the first part, in category STD1, of the series of functional standards, aiming to define a
common modelling framework, to be used for the development of the subsequent standards: common
methods and rules, a unique Reference Architecture, and common Data Dictionary.
The Trans-European conventional rail system
Trans-European conventional rail system shall be considered as defined in Article 2 of the Council
Directive 2001/16/EC on the interoperability of the Trans-European conventional railway system:
For the purposes of this Directive: "Trans-European conventional rail system" means the structure, as
described in Annex I, composed of lines and fixed installations, of the Trans-European transport network,
built or upgraded for conventional rail transport and combined rail transport, plus the rolling stock
designed to travel on that infrastructure.
The Trans-European rail system is broken down into subsystems, as described in Annex II of the
Directive:
a) structural area
- infrastructure, in particular access / egress points that define the boarders of an infrastructure
managed by a given organisation, and also shunting, freight terminals and stations,
- energy, electrification system…,
- control and command and signalling, to command and control train movement,
- traffic operation and management, including train driving, traffic planning and management,

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- rolling stock, including all train equipment and man-machine interfaces for driver, on-board staff
and passengers.
b) operational area
- maintenance, including logistics centres for maintenance work and reserves for corrective and
preventive maintenance,
- telematics applications: freight services and passenger services (including passenger information,
reservation and payment, luggage management, connections between trains and other modes of
transport).
Examples of functions to be standardised
NOTE In the following informal function descriptions, interface ”type B” (“train level to consist level”, named also “train to consist”
for short), and interface ”type C” (train to ground) are used (see Figure 1 in 4.4.2).
1) Dynamic passenger information system. Refer to [14], a contribution of TrainCom European
Research Project (ref: IST-1999-20096), proposing a detailed XML specification of messages that are
exchanged between vehicles and with the ground. This specification covers all characteristic features of
the rail environment, including its dynamic aspects.
2) Maintenance: Euromain European Research Project (ref: IST-2001-34019) proposes detailed XML
specifications for data, and including the definition of functions for real time monitoring, data collection
and statistics.
3) Passenger emergency brake: The Technical Specification for Interoperability (TSI) relating to the
rolling stock subsystem (High Speed)) gives requirements for this function. This is a train level function. If
the train is formed by several coupled consists, an interface “train to consist” (type B) is involved. A
communication with the ground is also possible: interface “train to ground” (type C).
4) “Stabled ready for use”: This is a train level function, ensuring that a train composition is ready for
service when required. If the train is formed by several coupled consists, an interface “train to consist”,
(type B) is involved. A communication with the ground is also possible for triggering train preparation:
“ground to train” interface (type C).
5) Control of passenger lighting: Control of lighting from the driver cab, for two consists coupled
together. There are in addition some local controls in each coach.
Level of services for the lighting system may be different for the two consists
- version 1, with two levels of lighting: full, reduced,
- version 2, with three levels of lighting: full, reduced, and night.
The issue raised by this example is one problem of interoperability among a set of heterogeneous
consists.
EXAMPLE
When the driver is in the consist which is fitted with version 1, how to specify the interface between
consists, in order to have an acceptable behaviour in the other consist fitted with version 2.
Two alternative solutions are
- each consist should be able to interpret in its own way every possible command issued by another
leading consist. For instance, a consist fitted with version 1 will set “reduced level” when receiving a
“night level” command,
- the driver could control each consist after having “imported” on the cab MMI the specific control
interface of the given consist.

6) Train integrity (completeness of train)
Some possible solutions to check the completeness of the train may use
- connector at the end of the train,
- with GPS + EGNOS, precision < 2,5 m possible,
- GPS with integrated inertial system.
The positions at the train extremities are measured, and compared to the train length obtained by
summing all vehicles lengths, obtained for configuration data stored in the UIC gateways. Safety integrity
requirement SIL 4 is needed for ERTMS level 3 for train integrity function.
7) Establishing and distributing time and date
A train level function. If there are several consists, clocks have to be synchronised train wide. A problem
to solve is how to take into account variable network propagation delay for synchronisation messages. An
another issue is standardisation of reference time source, and synchronisation protocols.

8) Establishing and distributing speed
A train level function. Speed data has to be time-stamped. If ther
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