ISO 14819-2:2021

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ISO 14819-2:2021 is an international standard that specifies the event and information codes used within the Radio Data System-Traffic Message Channel (RDS-TMC) system to communicate traffic information. It defines how traffic events and related information are encoded and transmitted via RDS, a subcarrier on FM radio broadcasts. The standard is part of a larger series, with ISO 14819-1:2021 focusing on the ALERT-C protocol concept and ISO 14819-3:2021 covering location coding.