Editing Traffic message channel (section)

=== United States and Canada ===

In the United States of America, [[XM Satellite Radio]] and [[Sirius Satellite Radio]] provide TMC service all over the US. [[Navteq]] provides traffic data to both providers. Navteq Traffic delivers traffic information and related advertising via RDS and HD signals to navigation devices nationwide. Navteq also provided traffic data sourced from sensors, probes and other technologies in 10+ countries as of December 2009. [[INRIX]], Inc. fuses TMC data with real-time flow information from its crowd-sourced network of [[Floating car data|floating cars]] and mobile devices with information from other public and private sources to deliver real-time and predictive traffic information.

[[iHeartMedia]] and [[Tele Atlas]] have a TMC service called '''Total Traffic & Weather Network''' ('''TTWN''') (also iHeartMedia's branding for traffic and weather reporting), using [[Radio Data System|FM RDS]] in 77 US cities and three Canadian metropolitan areas.<ref>{{cite press release
 | title = Traffic Data Goes High Def with Clear Channel Radio
 | publisher = Clear Channel Radio
 | date = 2007-07-09
 | url = http://www.clearchannel.com/Radio/PressRelease.aspx?PressReleaseID=1992
 | access-date = 2008-04-14
 | archive-date = 16 June 2008
 | archive-url = https://web.archive.org/web/20080616114555/http://www.clearchannel.com/Radio/PressRelease.aspx?PressReleaseID=1992
 | url-status = dead
 }}</ref> These services are both offered by [[subscription]] and were initially available to many [[in-car navigation]] units via an [[expansion card|expansion module]] purchased separately.

The TomTom RDS-TMC Traffic Receiver acquires information through an FM signal broadcast by Clear Channel's regional providers. By connecting a compatible TomTom navigation device to the RDS-TMC Traffic Receiver, users receive traffic information via the TMC connection. Traffic alerts appear in the traffic bar on the right side of the screen. Tapping the traffic bar reveals further information, such as accident or traffic delays. The RDS-TMC Traffic Receiver is compatible with the TomTom VIA series, GO 920, TomTom GO 720, TomTom ONE XL and TomTom ONE 3rd edition. It integrates RDS-TMC Traffic information with TomTom GO and ONE products.

In addition to these after-market services, six major motor manufacturers offer RDS-TMC as standard in their U.S. vehicles, including [[Volvo]] and [[BMW]].

[[Ibiquity|iBiquity]] [[HD Radio]] provides a TMC service based on RDS-TMC.