Appendix
69
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English
TMC (Traffic Message Channel)
The
Traffic Message Channel
(
TMC
) is a digital radio data service that functions in a
similar way to RDS and is used to transmit disruptions to traffic to a suitable reception
device.
The traffic information is continuously transmitted across FM.
The user is less dependent on the half-hourly broadcast traffic information, because the
signal is continuously transmitted. Apart from this, important information, as in the case of
an accident in the road ahead, can be passed on immediately.
The transmission is planned for the whole of Europe and is already offered by radio trans-
mitters in many countries. The precision of the TMC messages can deviate greatly accord-
ing to the country. At time of printing a TMC service is not available in Ireland.
The evaluation of TMC messages is not supported by every type of navigation software.
Enquire whether your system supports TMC before the possible purchase of a TMC re-
ceiver.
Pay TMC (optional)
PayTMC is interpreted as TMC Services that offer TMC information free of charge, such as
TMCpro in Germany, Trafficmaster in the UK or V-Trafic in France, for example. These
providers are distinguished from normal ‘free TMC’ because of more up-to-date informa-
tion about the traffic flow.
Sensors in motorway bridges and set into the carriageway, and a large number of vehicles
equipped with ‘floating car’ data technology, supply a more precise and up-to-date pic-
ture of the traffic situation on German highways, inc. possible predictions, quickly.
The licence fees for the use of the PayTMC services will have already been settled with the
purchase of your navigation system and these services will be available to you for as long
as they are offered on the part of the provider.
Your navigation system will support both free TMC and PayTMC and will have been preset
for the reception of both services in the status at delivery.
Summary of Contents for E4145
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