CEN ISO/TS 17426:2016

SLOVENSKI STANDARD
01-julij-2016
Inteligentni transportni sistemi - Kooperativni sistemi - Kontekstualne hitrosti
(ISO/TS 17426:2016)
Intelligent transport systems - Cooperative systems - Contextual speeds (ISO/TS
17426:2016)
Intelligente Transportsysteme (ITS) - Kooperative Systeme - Kontextuelle
Geschwindigkeiten (ISO/TS 17426:2016)
Systèmes intelligents de transport - Systèmes coopératifs - Vitesses contextuelles
(ISO/TS 17426:2016)
Ta slovenski standard je istoveten z: CEN ISO/TS 17426:2016
ICS:
03.220.01 Transport na splošno Transport in general
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 ISO/TS 17426
TECHNICAL SPECIFICATION
SPÉCIFICATION TECHNIQUE
March 2016
TECHNISCHE SPEZIFIKATION
ICS 03.220.01; 35.240.60
English Version
Intelligent transport systems - Cooperative systems -
Contextual speeds (ISO/TS 17426:2016)
Systèmes intelligents de transport - Systèmes Intelligente Transportsysteme (ITS) - Kooperative
coopératifs - Vitesses contextuelles (ISO/TS Systeme - Kontextuelle Geschwindigkeiten (ISO/TS
17426:2016) 17426:2016)
This Technical Specification (CEN/TS) was approved by CEN on 25 January 2016 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, 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: Avenue Marnix 17, B-1000 Brussels
© 2016 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN ISO/TS 17426:2016 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (CEN ISO/TS 17426:2016) has been prepared by Technical Committee ISO/TC 204
"Intelligent transport systems" in collaboration with Technical Committee CEN/TC 278 “Road transport
and traffic telematics” 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 [and/or CENELEC] shall not be held responsible for identifying any or all such patent
rights.
This document has been prepared under a mandate given to CENELEC by the European Commission
and the European Free Trade Association.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to announce this Technical Specification: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO/TS 17426:2016 has been approved by CEN as CEN ISO/TS 17426:2016 without any
modification.
TECHNICAL ISO/TS
SPECIFICATION 17426
First edition
2016-03-15
Intelligent transport systems —
Cooperative systems — Contextual
speeds
Systèmes intelligents de transport — Systèmes coopératifs — Vitesses
contextuelles
Reference number
ISO/TS 17426:2016(E)
©
ISO 2016
ISO/TS 17426:2016(E)
© ISO 2016, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
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ii © ISO 2016 – All rights reserved

ISO/TS 17426:2016(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Conformance . 2
3 Normative references . 2
4 Terms and definitions . 2
5 Symbols and abbreviated terms . 3
6 Contextual Speeds: Architecture . 4
7 Contextual speeds: Use cases . 5
7.1 General . 5
7.2 Use case 1: Provision of mandatory speed limit information into vehicle – for
driver awareness purposes . 6
7.3 Use case 2 - Provision of advisory speed information into vehicle – for driver
awareness purposes .10
8 Contextual speeds: Roles and responsibilities .14
8.1 Scenarios for contextual speeds .14
8.2 System operation roles in scenario 7 .15
8.3 Possible actors in the Contextual Speed Information Service .15
9 Contextual speeds: Characteristics.16
10 Contextual speeds: General service requirements .16
11 Contextual speeds: Communication requirements .17
11.1 General .17
11.2 General communication requirements .18
11.2.1 General.18
11.2.2 ITS-S application processes of the Contextual Speed Application .18
11.2.3 Flow types of the Contextual Speed Application .18
11.2.4 Flow Type 1 of the Contextual Speed Application .19
11.2.5 Flow Type 2 of the Contextual Speed Application .19
11.2.6 Flow Type 3 of the Contextual Speed Application .20
11.2.7 Sources and Sink ITS stations of the Flow Types .21
11.2.8 Other general communication requirements .21
11.3 Application specific data element requirements .21
Annex A (normative) Contextual speeds: IVI Profile (Definition of CSM) .23
Bibliography .29
ISO/TS 17426:2016(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical
Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information.
The committee responsible for this document is ISO/TC 204, Intelligent transport systems.
iv © ISO 2016 – All rights reserved

ISO/TS 17426:2016(E)
Introduction
Traditional fixed speed limits have, in general, been set as the maximum mandatory speed that a
vehicle or a category of vehicles can travel at. Such speed limits are defined by the competent authority.
Some national authorities moderate mandatory speed limits when road or environment conditions
change. When road or environmental conditions change, the decision as to the most appropriate speed
a driver or rider should travel is, in general, left up to the individual vehicle driver. With the advent of
Cooperative Intelligent Transport Systems (ITS), it has become possible to provide better guidance to
vehicle drivers on what speed they should travel at when road, traffic, or environmental conditions are
less than ideal. This function is known as Contextual Speed Information Service.
Delivering Contextual Speed information to road users can improve road safety, support traffic
man
...