CEN/TS 17400:2020

SLOVENSKI STANDARD
01-junij-2020
Inteligentni transportni sistemi - Mestni ITS - Mešana prodajna okolja,
metodologije in prevajalci
Intelligent transport systems - Urban ITS - Mixed vendor environments, methodologies &
translators
Intelligente Verkehrssysteme - IVS in Städten - Herstellergemischte Systemlandschaften,
Methodik und Umsetzung von Schnittstellen
Systèmes de transport intelligents - STI-urbain - Environnements de fournisseurs mixtes
méthodologies et traducteurs
Ta slovenski standard je istoveten z: CEN/TS 17400:2020
ICS:
35.240.60 Uporabniške rešitve IT v IT applications in transport
prometu
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

CEN/TS 17400
TECHNICAL SPECIFICATION
SPÉCIFICATION TECHNIQUE
April 2020
TECHNISCHE SPEZIFIKATION
ICS 35.240.60
English Version
Intelligent transport systems - Urban ITS - Mixed vendor
environments, methodologies & translators
Systèmes de transport intelligents - ITS urbain - Intelligente Verkehrssysteme - Städtische IVS -
Environnements de fournisseurs mixtes méthodologies Gemischte Anbieterumgebungen Methodologien &
et traduction Übersetzer
This Technical Specification (CEN/TS) was approved by CEN on 29 December 2019 for provisional application.

The period of validity of this CEN/TS is limited initially to three years. After two years the members of CEN will be requested to
submit their comments, particularly on the question whether the CEN/TS can be converted into a European Standard.

CEN members are required to announce the existence of this CEN/TS in the same way as for an EN and to make the CEN/TS
available promptly at national level in an appropriate form. It is permissible to keep conflicting national standards in force (in
parallel to the CEN/TS) until the final decision about the possible conversion of the CEN/TS into an EN is reached.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TS 17400:2020 E
worldwide for CEN national Members.

Contents Page
European foreword . 4
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Abbreviations . 8
5 Mixed vendor environments in urban ITS . 10
5.1 General. 10
5.2 Interfaces between systems . 11
5.3 Legacy and migration issues . 13
6 MVE methodologies . 14
6.1 Design methodologies . 14
6.2 Public procurement constraints. 16
6.3 Communications . 17
7 Translators . 19
7.1 Introduction . 19
7.2 Specifications . 21
7.3 Location of functional processing . 21
7.4 Data storage and caching . 22
7.5 Data models: concepts, definitions and units . 23
7.6 Upper layer protocol adaptors . 24
7.7 Communications network translation . 24
7.8 Information security . 25
Annex A (informative) Approach of DVM Exchange/IVERA to interoperability . 26
A.1 Introduction . 26
A.2 General architectural approach of DVM-Exchange . 26
A.3 General architectural approach of IVERA . 28
A.4 Procurement issues and impact . 29
A.5 Management and governance . 29
A.6 Example DVM Exchange/IVERA implementation: Deventer . 30
Annex B (informative) Approach of OCIT to interoperability . 32
B.1 Introduction . 32
B.2 General architectural approach . 33
B.3 Procurement issues and impact . 33
B.4 Management . 34
B.5 Example OCIT implementation . 34
Annex C (informative) Approach of UTMC to interoperability . 37
C.1 Introduction . 37
C.2 General architectural approach . 38
C.3 Procurement issues and impact . 40
C.4 Management . 41
C.5 Example UTMC implementation: Reading . 41
Annex D (informative) Approach of RSMP to interoperability . 43
D.1 Introduction . 43
D.2 General architectural approach of RSMP . 44
D.3 Procurement issues and impact . 46
D.4 Management and governance . 47
Bibliography . 48

European foreword
This document (CEN/TS 17400:2020) has been prepared by Technical Committee CEN/TC 278
“Intelligent Transport Systems”, the secretariat of which is held by NEN.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document has been prepared under a Commission Implementing Decision (M/546) given to CEN by
the European Commission and the European Free Trade Association [1], and supports essential
requirements of the EU ITS Directive [2]. It fulfils part of the workplan identified in CEN/TR 17143:2017,
Intelligent transport systems - Standards and actions necessary to enable urban infrastructure
coordination to support urban-ITS [3].
According to the CEN/CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to announce this Technical Specification: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United
Kingdom.
Introduction
This suite of standards ([4], [5] and the present document) assist stakeholders to implement urban-ITS
systems in a mixed vendor environment.
This suite of standards deliverables will support the family of existent standards, and others under
development, referencing both common communications protocols and data definitions, that, in
combinations, enable Urban-ITS (and ITS in general) to function and be managed, and will reference
application standards, and their interdependencies and relationships.
Urban authorities use an increasing array of intelligent transport systems (ITS) to deliver their services.
Historically, urban ITS have tended to be single solutions provided to a clear requirements specification
by a single supplier. Increasingly, as ITS opportunities become more complex and varied. They involve
the integration of multiple products from different vendors, procured at different times and integrated
by the urban authority.
The need for a mixture of systems provided by different manufacturers to so-called Mixed Vendor
Environments (MVEs) is a growing paradigm, which results primarily from the demand for the
introduction of competition in the context of public tenders, and the increasing networking of existing
stand-alone solutions to address complex traffic management systems.
The mix of systems of different manufacturers is also, in part, a result from technological change.
Established companies are suddenly in competition with new companies that exploit technological
changes and offer exclusively, or at a reasonable price, new or improved functionality for sub systems.
However, ITS design is often proprietary and, as a consequence, integration and interoperability can be
difficult, time-consuming, and expensive, limiting the ability of urban authorities to deploy innovative
solutions to transport problems. In some Member States, national/regional solutions to this problem
have been created, and there are also some solutions in specific domains, which have been very beneficial.
However, these are not uniform across Europe, compromising the efficiency of the single market.
This document provides the methodologies and translators to avoid vendor lock-in, introducing suitable
methodologies for system architecture design, making appropriate use of standards, and specifications
to be used when translator systems are adopted.
This specification is designed to enable ITS architects to develop concrete architectural concepts for
mixed-manufacturer systems in order to achieve the migration of existing monolithic single-
manufacturer systems, by creating and delivering EU-wide MVE communication specifications designed
to actively support the implementation of distributed and open system structures for regionally and
nationally networked systems in the transport sector throughout the EU.
This document should be read together with [4], which provides a ‘Guide’ giving a high level introduction
into the concept of operations (CONOPS) for a mixed vendor environment (MVE); provides a high-level
architectural context explanation of an MVE and its operational requirements, and describes the
problems and effects are associated with vendor lock-in. It also provides a systematic approach for many
aspects of Urban-ITS implementation, and indeed almost all ITS MVE implementation; and provides a
methodical guidelin
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