ISO 14819 is a set of international standards developed by the International Organization for Standardization (ISO) under the broader category of Intelligent Transport Systems (ITS). These standards specifically address the Traffic and Travel Information (TTI) messages that are broadcasted via radio or other communication methods to inform road users of various travel-related information, such as traffic conditions, road hazards, weather alerts, and other travel-related data.
Key Parts of ISO 14819
ISO 14819 is divided into several parts, each focusing on different aspects of the Traffic Message Channel (TMC) system:
-
ISO 14819-1:2003 – TTI Messages via Traffic Message Channel – Coding Protocol for Radio Data System – Traffic Message Channel (RDS-TMC) Using ALERT-C
This part of the standard specifies the coding protocol used in the RDS-TMC system, a system used to deliver real-time traffic information to drivers via FM radio broadcasts. The ALERT-C protocol, defined in this part, ensures that traffic information can be transmitted in a concise and standardized format. -
ISO 14819-2:2013 – TTI Messages via Traffic Message Channel – Event List
This part contains a standardized list of events that can be communicated via TMC messages. These events include incidents like accidents, roadworks, traffic jams, weather conditions, and more. The event list allows for a common understanding and interoperability between different systems and devices. -
ISO 14819-3:2013 – TTI Messages via Traffic Message Channel – Location Referencing for Alert-C
This part defines how specific locations are referenced in TMC messages. The location referencing method ensures that the location of incidents or other relevant data can be precisely communicated to end users, enabling accurate navigation and travel advice. -
ISO 14819-4:2013 – TTI Messages via Traffic Message Channel – Encoding Protocol for Radio Data System – Traffic Message Channel (RDS-TMC) Using ALERT-Plus
An extension of the ALERT-C protocol, ALERT-Plus provides enhancements and additional features to improve the communication of TMC messages. This part of the standard outlines the specifics of this protocol.
Applications and Importance
ISO 14819 standards are crucial for the development and operation of ITS, as they ensure consistency, reliability, and interoperability in the delivery of traffic and travel information. This standardization facilitates better navigation, reduces travel time, enhances road safety, and improves the overall efficiency of transportation systems. These standards are widely used by broadcasters, car manufacturers, navigation system developers, and government agencies involved in traffic management and road safety.
By following ISO 14819, systems can efficiently transmit standardized traffic messages that are understood across different platforms and regions, providing users with timely and accurate information to make informed travel decisions.
Further Details and Industry Impact
Interoperability and Global Standardization
One of the key benefits of the ISO 14819 standard is its role in promoting interoperability across different systems and regions. Because traffic and travel information is often transmitted across various jurisdictions and countries, having a common standard ensures that the information is easily understood and correctly interpreted regardless of the local systems or technologies in place. This global standardization is particularly important in regions where cross-border travel is common, such as in Europe, where the standard was initially developed and is widely implemented.
Enhancements with ALERT-C and ALERT-Plus Protocols
The ALERT-C and ALERT-Plus protocols defined within ISO 14819 provide robust frameworks for encoding and decoding traffic messages. These protocols allow for the transmission of detailed and complex traffic information in a compact form. ALERT-C, for instance, can encode information about the type of event (e.g., accident, roadworks), the location of the event, and additional details like expected delays or detours. ALERT-Plus builds on this by offering enhancements such as additional data fields and more precise location referencing, which are particularly useful in urban areas or complex road networks.
Use in Navigation Systems and Traffic Management
Navigation systems in vehicles, as well as mobile navigation applications, often rely on data encoded according to ISO 14819. This allows them to offer real-time traffic updates, suggest alternative routes, and warn drivers of potential hazards. These systems enhance the driving experience by reducing uncertainty and enabling better trip planning.
Traffic management centers also use the standards defined in ISO 14819 to disseminate information across various platforms, including radio broadcasts, variable message signs (VMS), and online platforms. This integrated approach ensures that drivers receive consistent and accurate information regardless of the medium they are using.
Conclusion
ISO 14819 plays a critical role in the global ecosystem of intelligent transport systems by providing a standardized method for communicating traffic and travel information. Its protocols and guidelines ensure that information is accurate, timely, and easily understood by drivers and traffic management systems alike. As technology continues to advance, the standard will likely evolve, continuing to be a cornerstone of effective traffic management and enhanced road safety worldwide.
Contact EIQM
To contact us, please fill out the form below. We will contact you as soon as possible. You can also apply through this form if you would like to receive system certification or representation of EIQM Certification Body.