ISO 17423:2025
(Main)Intelligent transport systems — Application requirements and objectives
Intelligent transport systems — Application requirements and objectives
This document: — specifies communication service parameters presented by ITS station (ITS-S) application processes to the ITS-S management in support of automatic selection of ITS-S communication profiles in an ITS station unit (ITS-SU); — specifies related procedures for the static and dynamic ITS-S communication profile selection processes at a high functional level; — provides an illustration of objectives used to estimate an optimum ITS-S communication profile.
Systèmes de transport intelligents — Exigences et objectifs des applications
Le présent document — spécifie les paramètres de service de communication présentés par les processus d'application de la station ITS (ITS-S) à la gestion ITS-S afin de faciliter la sélection automatique des profils de communication ITS-S au sein d'une unité de station ITS (ITS-SU), — spécifie les procédures liées aux processus de sélection des profils de communication ITS-S statiques et dynamiques à un niveau fonctionnel élevé, — fournit une illustration des objectifs permettant d'estimer un profil de communication ITS-S optimal.
General Information
Relations
Standards Content (Sample)
International
Standard
ISO 17423
Second edition
Intelligent transport systems —
2025-04
Application requirements and
objectives
Systèmes de transport intelligents — Exigences et objectifs des
applications
Reference number
© ISO 2025
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Published in Switzerland
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Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Abbreviated terms . 2
5 Communication service parameters . 3
5.1 Abstraction of application processes from communications.3
5.2 Communication service parameter classes .7
5.3 Operational CSPs .7
5.3.1 List of CSPs .7
5.3.2 Logical channel .7
5.3.3 Session continuity .8
5.3.4 Average ADU generation rate .8
5.3.5 Flow type.8
5.3.6 Maximum priority .8
5.3.7 Port number .8
5.3.8 Expected flow lifetime .9
5.4 Destination CSPs .9
5.4.1 List of CSPs .9
5.4.2 Destination type .9
5.4.3 Destination domain .9
5.4.4 Communication distance .10
5.4.5 Directivity .10
5.5 Performance CSPs .10
5.5.1 List of CSPs .10
5.5.2 Resilience .10
5.5.3 Minimum required throughput .10
5.5.4 Maximum allowed latency .11
5.5.5 Maximum ADU size .11
5.6 Security CSPs .11
5.6.1 List of CSPs .11
5.6.2 Need for data confidentiality .11
5.6.3 Need for data integrity. 12
5.6.4 Need for non-repudiation . 12
5.6.5 Need for source ITS-S application process authentication . 12
5.7 Protocol CSP . 12
5.7.1 List of CSPs . 12
5.7.2 Communication protocol stack . 12
5.7.3 Specific communications protocols . 12
5.8 CSPs for sinks . 13
5.9 CSPs overview . 13
6 Policies and regulations . 14
6.1 Cost policy.14
6.1.1 List of rules .14
6.1.2 Flat rate. 15
6.1.3 Maximum rate per data unit . 15
6.1.4 Maximum rate per connection time . 15
6.1.5 Maximum rate per connection .16
6.2 Need for station anonymity .16
6.3 Need for station location privacy .16
6.4 Support of station authentication .16
iii
7 ITS-S procedures for ITS-S communication profile selection .16
7.1 Overview .16
7.2 Presentation of CSPs .17
7.3 Monitoring of capabilities of communications .18
7.4 Monitoring of regulations and policies .18
7.5 Selection of ITS-S communication profiles .18
7.6 Interaction with user of ITS-SU .19
7.7 Support of other application processes .19
Annex A (normative) ASN.1 modules .20
Annex B (informative) Example of presentation of CSPs .27
Annex C (informative) Communication requirements and objectives .30
Bibliography .33
iv
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
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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 document should be noted. This document was drafted in accordance with the editorial rules of the
ISO/IEC Directives, Part 2 (see www.iso.org/dir
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