Radio Data System-Traffic Message Channel (RDS-TMC)
The Radio Data System-Traffic Message Channel (RDS-TMC) is a radio broadcast used for delivering traffic and travel information to the driver. The RDS-TMC data is typically coded using the 57 kHz±3 kHz subcarrier on FM broadcast.
The RDS-TMC system uses a decoder build into the audio-navigation unit to decode the traffic information data.
The traffic information is displayed with the navigation route guidance. The navigation system uses this information to help avoid traffic jams and traffic delays caused by accidents, (see the Navigation Manual for more information).