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Traffic Message Channel, or TMC, is a technology for delivering traffic and travel information to drivers. It is digitally coded using the FM-RDS system on conventional FM radio broadcasts. It allows silent delivery of high quality accurate, timely and relevant information, in the language chosen by the user and without interrupting normal services. Services, both public and commercial, are now operational in many European countries. When data is integrated directly into a navigation system, this gives the driver the option to take an alternative route to avoid the traffic incident.

TMC Services in Europe

Following countries provide a TMC service: It is also planned in Portugal, the Czech Republic, Hungary and the rest of Italy.

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