ISO 14819-2:2021/Amd 1:2026
(Amendment)Intelligent transport systems — Traffic and travel information messages via traffic message coding — Part 2: Event and information codes for Radio Data System-Traffic Message Channel (RDS-TMC) using ALERT-C — Amendment 1
General Information
- Abstract
- Status
- Published
- Publication Date
- 12-Jul-2026
- Technical Committee
- ISO/TC 204 - Intelligent transport systems
- Drafting Committee
- ISO/TC 204/WG 10 - Traveller information systems
- Current Stage
- 6060 - International Standard published
- Start Date
- 13-Jul-2026
- Due Date
- 06-Dec-2026
- Completion Date
- 13-Jul-2026
Buy Documents
ISO 14819-2:2021/Amd 1:2026 - Intelligent transport systems — Traffic and travel information messages via traffic message coding — Part 2: Event and information codes for Radio Data System-Traffic Message Channel (RDS-TMC) using ALERT-C — Amendment 1
ISO 14819-2:2021/Amd 1:2026 - Systèmes de transport intelligents — Informations sur le trafic et les déplacements via le codage de messages sur le trafic — Partie 2: Codes d'évènements et d'informations pour le système de radiodiffusion de données - canal de messages d'informations sur le trafic (RDS-TMC) avec Alert-C — Amendement 1
Overview
ISO 14819-2:2021/Amd 1:2026 is an amendment to the international standard for intelligent transport systems (ITS), specifically addressing traffic and travel information messages transmitted via traffic message coding. This amendment updates Part 2, focusing on event and information codes for the Radio Data System-Traffic Message Channel (RDS-TMC) using ALERT-C protocol. RDS-TMC is a widely utilized technology for broadcasting real-time traffic information to motorists, supporting efficient route planning and enhancing road safety.
With the publication of Amendment 1, the standard introduces new event and information codes that expand the precision and utility of RDS-TMC messaging, especially for event-specific traffic updates related to holidays. This ensures seamless communication of relevant travel disruptions and event impacts across intelligent transport systems.
Key Topics
- Intelligent Transport Systems (ITS): Emphasizes the importance of standardized traffic and travel information exchange to enhance transportation efficiency and safety.
- RDS-TMC and ALERT-C Protocol: Focuses on the use of RDS-TMC technology and the standardized ALERT-C protocol for transmitting coded traffic information via FM radio.
- Event and Information Codes Update: Introduces new codes to the existing structure to provide more detailed explanations for traffic events, improving information distinction and contextual relevance.
- Table Amendments: Amendment 1 specifically updates tables in the main body and annexes:
- Addition of codes (186 and 187) for "due to national holiday" and "due to regional holiday" in both standard and GB-English text contexts.
Applications
This standard amendment is highly relevant for organizations working on traffic information broadcasting, ITS infrastructure providers, public agencies, and developers of in-vehicle navigation or traffic alert systems. Focusing on ITS interoperability, ISO 14819-2:2021/Amd 1:2026 brings the following practical value:
- Enhanced Traffic Information Accuracy: New codes enable more granular communication of event-related disruptions, such as holiday-related traffic impacts, facilitating timely warnings for end users.
- Consistency Across Borders: By aligning terminology and codes internationally, RDS-TMC services maintain reliability and compatibility for multinational travelers and service operators.
- Navigation System Integration: Automotive manufacturers and software developers benefit from updated codes, ensuring driver information systems provide up-to-date and context-aware traffic reports.
- Traffic Management Optimization: Public authorities and traffic management centers can broadcast standardized alerts, aiding congestion management and emergency response, especially during significant events like national and regional holidays.
- Language and Unit Support: The amendment addresses both metric and non-metric unit contexts, catering to various regional needs and enhancing message clarity for local and international audiences.
Related Standards
For comprehensive implementation and compliance, organizations may wish to consult the following associated and related standards:
- ISO 14819-1: General specifications and framework for traffic and travel information messages via RDS-TMC.
- ISO 14819-3: Detailed guidelines for location tables, integral to accurate regional message coverage.
- ISO 21219 Series: Standards for Traffic and Traveller Information (TTI) using the TPEG protocol, offering additional options for ITS data exchange.
- CEN/TC 278 Standards: European standards on intelligent transport systems, developed in cooperation with ISO for broader interoperability within Europe.
By adopting the amendment to ISO 14819-2, stakeholders enhance their ability to deliver timely, detailed, and internationally consistent traffic and travel messages, supporting safer and more efficient journeys throughout the global transport network.
Relations
- Effective Date
- 12-Feb-2026
- Effective Date
- 21-Jun-2025
- Effective Date
- 07-Jun-2025
Buy Documents
ISO 14819-2:2021/Amd 1:2026 - Intelligent transport systems — Traffic and travel information messages via traffic message coding — Part 2: Event and information codes for Radio Data System-Traffic Message Channel (RDS-TMC) using ALERT-C — Amendment 1
ISO 14819-2:2021/Amd 1:2026 - Systèmes de transport intelligents — Informations sur le trafic et les déplacements via le codage de messages sur le trafic — Partie 2: Codes d'évènements et d'informations pour le système de radiodiffusion de données - canal de messages d'informations sur le trafic (RDS-TMC) avec Alert-C — Amendement 1
Get Certified
Connect with accredited certification bodies for this standard
BSI Group
BSI (British Standards Institution) is the business standards company that helps organizations make excellence a habit.
Great Wall Tianjin Quality Assurance Center
Established 1993, first batch to receive national accreditation with IAF recognition.
Hong Kong Quality Assurance Agency (HKQAA)
Hong Kong's leading certification body.
Sponsored listings
Frequently Asked Questions
ISO 14819-2:2021/Amd 1:2026 is a standard published by the International Organization for Standardization (ISO). Its full title is "Intelligent transport systems — Traffic and travel information messages via traffic message coding — Part 2: Event and information codes for Radio Data System-Traffic Message Channel (RDS-TMC) using ALERT-C — Amendment 1". This standard covers: Intelligent transport systems — Traffic and travel information messages via traffic message coding — Part 2: Event and information codes for Radio Data System-Traffic Message Channel (RDS-TMC) using ALERT-C — Amendment 1
Intelligent transport systems — Traffic and travel information messages via traffic message coding — Part 2: Event and information codes for Radio Data System-Traffic Message Channel (RDS-TMC) using ALERT-C — Amendment 1
ISO 14819-2:2021/Amd 1:2026 is classified under the following ICS (International Classification for Standards) categories: 03.220.20 - Road transport; 35.240.60 - IT applications in transport. The ICS classification helps identify the subject area and facilitates finding related standards.
ISO 14819-2:2021/Amd 1:2026 has the following relationships with other standards: It is inter standard links to EN ISO 14819-2:2021/prA1:2025, ISO/IEC 30118-7:2021, ISO 14819-2:2021. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
ISO 14819-2:2021/Amd 1:2026 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
International
Standard
ISO 14819-2
Third edition
Intelligent transport systems —
2021-02
Traffic and travel information
messages via traffic message
AMENDMENT 1
coding —
2026-07
Part 2:
Event and information codes for
Radio Data System-Traffic Message
Channel (RDS-TMC) using ALERT-C
AMENDMENT 1
Systèmes de transport intelligents — Informations sur le trafic et
les déplacements via le codage de messages sur le trafic —
Partie 2: Codes d'évènements et d'informations pour le système
de radiodiffusion de données - canal de messages d'informations
sur le trafic (RDS-TMC) avec Alert-C
AMENDEMENT 1
Reference number
ISO 14819-2:2021/Amd.1:2026(en) © ISO 2026
ISO 14819-2:2021/Amd.1:2026(en)
© ISO 2026
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
ISO 14819-2:2021/Amd.1:2026(en)
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 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/directives).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
ri
...
Norme
internationale
ISO 14819-2
Troisième édition
Systèmes de transport
2021-02
intelligents — Informations sur
le trafic et les déplacements via le
AMENDEMENT 1
codage de messages sur le trafic —
2026-07
Partie 2:
Codes d'évènements et
d'informations pour le système de
radiodiffusion de données - canal
de messages d'informations sur le
trafic (RDS-TMC) avec Alert-C
AMENDEMENT 1
Intelligent transport systems — Traffic and travel information
messages via traffic message coding —
Part 2: Event and information codes for Radio Data System-
Traffic Message Channel (RDS-TMC) using ALERT-C
AMENDMENT 1
Numéro de référence
ISO 14819-2:2021/Amd.1:2026(fr) © ISO 2026
ISO 14819-2:2021/Amd.1:2026(fr)
DOCUMENT PROTÉGÉ PAR COPYRIGHT
© ISO 2026
Tous droits réservés. Sauf prescription différente ou nécessité dans le contexte de sa mise en œuvre, aucune partie de cette
publication ne peut être reproduite ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique,
y compris la photocopie, ou la diffusion sur l’internet ou sur un intranet, sans autorisation écrite préalable. Une autorisation peut
être demandée à l’ISO à l’adresse ci-après ou au comité membre de l’ISO dans le pays du demandeur.
ISO copyright office
Case postale 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Genève
Tél.: +41 22 749 01 11
E-mail: copyright@iso.org
Web: www.iso.org
Publié en Suisse
ii
ISO 14819-2:2021/Amd.1:2026(fr)
Avant-propos
L'ISO (Organisation internationale de normalisation) est une fédération mondiale d'organismes nationaux
de normalisation (comités membres de l'ISO). L'élaboration des Normes internationales est en général
confiée aux comités techniques de l'ISO. Chaque comité membre intéressé par une étude a le droit de faire
partie du comité technique créé à cet effet. Les organisations internationales, gouvernementales et non
gouvernementales, en liaison avec l'ISO participent également aux travaux. L'ISO collabore étroitement avec
la Commission électrotechnique internationale (IEC) en ce qui concerne la normalisation électrotechnique.
Les procédures utilisées pour élaborer le présent document et celles destinées à sa mise à jour sont
décrites dans les Directives ISO/IEC, Partie 1. Il convient, en particulier, de prendre note des différents
critères d'approbation requis pour les différents types de document ISO. Le présent document a été
rédigé conformément aux règles de rédaction données dans les Directives ISO/IEC, Partie 2 (voir
www.iso.org/directives).
L'ISO attire l'attention sur le fait que la mise en application du présent document peut entraîner l'utilisation
d'un ou de plusieurs brevets. L'ISO ne prend pas position quant à la preuve, à la validité et à l'applicabilité de
tout droit de brevet revendiqué à cet égard. À la date de publication du présent document, l'ISO n'avait pas
reçu notification qu'un ou plusieur
...