Traffic Messaging (TMC) channels are technologies for sending traffic and travel information to motorists. It is digitally encoded using the ALERT C protocol into the RDS Type 8A group performed through conventional FM radio broadcasts. It can also be transmitted on Digital Audio Broadcasting or satellite radio. TMC allows the silent delivery of dynamic information suitable for reproduction or display in the user's language without interrupting the audio broadcast service. Public and commercial services operate in many countries. When data is integrated directly into the navigation system, traffic information can be used in the calculation of system routes.
Video Traffic message channel
Development
Detailed technical proposals for the RDS-TMC broadcasting protocol were first developed in the RDS-ALERT European Community DRIVE program research project, a partnership from BBC, Philips, Blaupunkt, TRRL and CCETT led by Castle Rock Consultants (CRC). The main objective of this project is to develop and build consensus on the standard design to broadcast RDS-TMC traffic messages in strictly encoded digital form.
A preliminary proposal to define RDS-TMC data fields was created for the European Transport Ministers Conference (ECMT) in Madrid, based on a scheme developed by CCETT and Philips in the Eureka-sponsored CARMINAT research project. This proposal requires the use of at least two groups of 104-bit RDS data for each message. In this RDS Group, 32 bits per group will be used for traffic data, giving the total length of 64 bits of traffic messages. The second proposal, by Bosch-Blaupunkt and German Road Research Institute BASt, only wants to use one RDS Group per traffic message. Then, in 1987, the CEC invited Castle Rock Consultants to lead a joint team that would take the TMC development one step further. The CRC produced proposals for the definition of a modified single-BASt/Blaupunkt group message, which came to be known as the ALERT A coding scheme. The test also continued at CCETT and the BBC on the CARMINAT approach, which forms the basis of alternative ALERT B encoding proposals.
The main question discussed in the A standby scheme is the total number of traffic event locations to be encoded. Preliminary estimates indicate that, in Europe, a maximum of 65,000 significant intersections may be required for the Federal Republic of Germany. An efficient coding system requires only 16 bits to encode this, simply by numbering each intersection from 1 to 65535. Calculations for France, Britain and elsewhere suggest that about 30,000 to 40,000 locations should be sufficient for most of the state systems in Europe or the United States. A standard 16-bit location code, therefore, is adopted for inter-city networks. The Madrid proposal of 1987, by comparison, required 33 bits for the problem of location codes, with separate fields for street numbers, street classes, country areas, etc. These 33 bits provide a theoretical total of 8.5 billion location codes, most of which are never usable.
After consultation with ECMT, a combined approach developed is called ALERT C Protocol which aims to combine the best features of each approach. ALERT A and C replace message category, causes, and suggestions of CARMINAT messages with a single 11-bit basic message code. This allows up to 2048 basic message phrases to be broadcast. The new ALERT protocol significantly improves the efficiency of message encoding, shortening the basic message content from 18 to 11 bits. In conjunction with the revised location code, which saved 17 of the 33 previously set bits, it allows most of the traffic messages to be broadcast using a single TMC data sequence. In 1991, ECMT recommends stepping forward with further protocol testing. The work continued with a larger consortium including Volvo and Ford in the ATT-ALERT European Commission DRIVE II project.
Maps Traffic message channel
Operation
Each traffic incident is binically encoded and sent as a TMC message. Each message consists of event code, location code, estimated incident duration, level of influence, and other details.
The message lists up to 2048 event phrases defined by 11 binary bits (used in 1402 in 2007) that the recipient can translate into the user's language. Some phrases describe individual situations such as collisions, while other phrases include combinations of events such as constructs that cause long delays.
In Europe, the location code table is maintained at the national level. The location tables are integrated into maps provided by vehicle navigation systems in vehicles such as HERE Technologies and TomTom and by vehicle manufacturers like Volvo. In other countries, such as the US and Canada, private companies maintain location tables and market TMC services commercially.
Traffic information sources usually include police, traffic control centers, camera systems, traffic speed detectors, floating car data, winter driving reports, and road repair reports.
Coordinate
TMC-Forum, a non-profit organization whose members include service providers, accepting manufacturers, car manufacturers, map vendors, broadcasters (public and private), car clubs and public authorities, is a forum to discuss traffic-related matters. It retains the TMC-Standard (ISO 14819). On 11 November 2007, TMC-Forum and TPEG-Forum merged into the Tourist Information Services Association (TISA). TISA has taken over all the activities and responsibilities of TMC-Forum.
Function
RDS-TMC is a low bandwidth system. Each RDS-TMC traffic message consists of 37 data bits sent at most 1-3 times per second, using low capacity data channels primarily designed for identification and tuning of FM radio station names. Compressing traffic incident description in multiple languages ​​into 16 bit for location, 11 bit for event description code, plus 3 bits for event level and some extra bits for duration/system management required due to pre-existing constraint in RDS Standard. Almost all the other bits of broadcasting data have been assigned from each of the 104-bit RDS Groups.
The main design challenge of RDS-TMC is to find ways to describe the location of traffic events across states or countries. Such a system can not deliver accurate latitude data (available 25 years later using in-app GPS such as Waze). In contrast, RDS-TMC relies on the use of location tables that only lead to significant road intersections. The accuracy of each traffic event location is low compared to modern smartphone devices. User navigation systems place drivers up to about 3 meters (10 feet), but only know, for example, that accidents occur between Exit 3 and Exit 4, northward on certain highways. This limitation requires traffic events (accidents, congestion, tap water, damaged traffic lights, etc.) Should be superimposed on the map by mapping the reported location to the TMC location table. If the nearest location table point is located at a certain distance from the exact position of the incident, then the report appears on the main road between two intersections, not in the right location. Limited accuracy can make a significant difference as to how the navigation device interprets the incident, potentially leading to occasional bad route choices.
In the US and elsewhere, systems such as CARS (Procurement and Reporting System of Condition) can determine the location of their event or start and end points with a precision of one meter. This real-time data is published in XML for access by companies like Google and TomTom. Reports of these incidents may be sent to mobile phones and handheld devices in vehicles. However, real-world traffic incidents typically spread from hundreds of meters to many kilometers, once the traffic reserves have been developed. On roads and other major roads, there are usually few or no detours available between significant intersections, all of which are included in the TMC location table. Many traffic report locations are approximate only, and as queue grows, locations may change rapidly. So GPS-based systems are more precise , but not necessarily more accurate .
Security
In April 2007, two Italian security researchers presented research on RDS-TMC at the CanSecWest security conference. The presentation, entitled "Unusual Car Navigation Tricks", raises the point that RDS-TMC is a wireless cleartext protocol and shows how to build receivers and transmitters with cheap electronics capable of injecting fake and potentially dangerous messages.
Detailed instructions and schemes have been published in hacking magazine Issue No. 64 from Phrack.
The TMC Forum responded by stating that the effect of any 'pirate' TMC broadcast will not exist on the user not on the route affected by the false message of obstruction and that the broadcast will directly disrupt the country's TMC operator station, which will lead to a crime. or civil liability. They declare that such activity is unlikely to happen.
The RDS-TMC receiver is a special FM radio tuner that can decode TMC data. TMC satellite receivers use a dedicated data channel that is broadcast as part of a much larger digital audio channel. TMC data is decoded by matching location and location codes with phrase and location lookup tables. The results can be translated into audio or displayed visually on Sab Sab devices. Lookup tables should be implemented in service-specific databases mapped to geographic routes and intersections. Like the navigation system itself, regular upgrades are needed when the road system changes. This provides an opportunity for vendors to generate revenue.
The RDS-TMC technical concept originated about 30 years ago, originally by Blaupunkt and Philips. With European Commission funding, BBC, Transport Research Laboratory and CCETT join together in a team led by Castle Rock Consultants to develop standards. Recently, personal navigation devices (PNDs) have emerged as an alternative way to send traffic information via mobile devices that use GPS.
Car companies continue to roll out RDS-TMC products. One reason is that the use of mobile devices attracted legislative concerns due to concerns about motorist disruption. Like car radios, the in-vehicle navigation system has so far not raised the same concern and may continue to outperform the handheld solution.
The upscale personal navigation aids model comes with an internal TMC receiver, and depending on the country, the service is available in Eclipse, Garmin, iPhone (Navigon), Navman, Navway, Mio, Pioneer, TomTom and Uniden navigation systems, as well as in Volvo, BMW and Ford Falcon navigation system, among many others.
TMC adapters can extend mobile navigation systems with integrated GPS receivers with TMC functionality. They can include a bluetooth or USB connection. The adapter forwards the traffic messages to the navigation software for route calculations. Adapters generally include connectors for FM/TMC, antennas (2.5mm phone jack or 50 Ohm MCX jack). Compatible navigation programs include AvMap, Destinator PN, Falk Navigator TMC Edition (special version for MyGuide Navigator 6500XL TMC Bundle), GoPal, iGO, Mireo, Navigon MN5, Route 66 and Sygic.
Coverage
In some places, TMC coverage is smaller than radio programs that carry TMC services, therefore there are white spots. For example, in the United States, one of two TMC commercial services is run by Clear Channel Communications, which 95 urban market FM stations typically have multiple levels of traffic information services. Another is Sirius Satellite Radio, which covers all of North America, including the sparsely populated countryside and an almost deserted desert. Although vendors are beginning to make arrangements with information systems such as CARS, operated by state police and state transportation departments, coverage will likely remain vague in some states over the next few years.
TMC service in operation
The following countries provide TMC services:
Australia
Intelematics Australia broadcasts a nationally encrypted RDS-TMC service initially focused on Australian urban areas under the 'SUNA Traffic Channel' brand. The service covers approximately 85% of Australian urbanities, using commercial FM broadcasters in seven cities, as well as through XML for online applications and smartphones. This service is available on GPS navigation systems including Navman, Mio, Uniden, iPhone (Navigon & Sygic), Eclipse, Pioneer, Alpine and Clarion. SUNA Traffic Channel is also available at Ford, Holden, Honda, Toyota, Nissan, and Mercedes Benz navigation systems. SUNA is currently the only comprehensive source of metropolitan congestion monitoring content in Australia - an exclusive technology interface for traffic light control systems. The SUNA broadcast service is fully compliant with RDS and TMC. However, since the broadcast is encrypted, it does not work on a GPS navigation system in a car that has no commercial arrangement with SUNA.
Austria
In Austria, ORF broadcasts free services on radio channels ÃÆ' â € "1, ÃÆ' â €" 2 (9 regional channels), Hitradio ÃÆ' â € "3 and FM4. It is supported by the Federal Ministry for Traffic, Innovation and Technology (BMVIT). ASFINAG is responsible for the location table, currently version 2.1, which received updates to handle increased usage during Euro 2008. The location table contains about 8,000 codes.
Baltic Region
Mediamobile Nordic plans to broadcast traffic information in the Baltic region. By 2014, no services are reported to be available in Latvia, Lithuania or Estonia, although the location table (managed by Destia) is certified by TISA in 2008. By 2017, unencrypted TMC services are available at Viker Raadio in Estonia. Mediamobile has a traffic information center in Estonia for the Nordic region.
Belgium
Belgium hosted TMC services: TMOBILIS in Belgium, TIC-VL in Flanders and RTBF in Wallonia and Brussels. Except for TMOBILIS , all of their services are currently open.
TMOBILIS is provided by Be-Mobile and Touring Mobilis . This is the only Belgian service completely. It combines all Belgian sources from the Flemish, Walloon and Brussel governments, police stations, the national Floating Car Data system based on the GPS position of the vehicle and the calling Mobilis call center. It was broadcast nationally by VRT at Studio Brussel for Flanders and RTBF on Classic 21 in Wallonia and Brussels.
TIC-VL is broadcast by VRT on Radio 2 and uses content from Vlaams Verkeerscentrum . Content and transmission coverage is limited to Flanders.
In Wallonia and Brussels, CLASS.21 is broadcast by RTBF on Classic 21. This service comes from PEREX Center of the de Wallonie public service (SPW, formerly MET) works with TMC4U . Transmission and content coverage is limited to Wallonia and Brussels.
Technum creates a table of locations based on regional community orders. Since December 2004, broadcast messages use the location table of version 1.4b, which adds N-path. The latest version is 2.9 ().
Bulgarian
The national TMC service for Bulgaria started beta testing in December 2010. The service is provided by TrafficNav, a Budapest traffic information company that works with Kvarta broadcast hardware producers. Data sources include real time traffic information provided by tix.bg, currently for Sofia. This service is accessible to most Garmin navigation devices and will soon be supported in some factory car navigation devices.
Colombia
Legislation does not permit the insertion of external digital data into analog FM transmissions and the use of RDS-TMC technology is also prohibited.
Czech Republic
The development of TMCs in the Czech Republic is coordinated by CEDA, which is responsible for the location tables. The current version is 4.1, contains over 16,000 records.
JSDI - transmitted on? eskÃÆ'½ rozhlas Vltava - is a free TMC service provided by the Czech Highway Directorate (? SD? R) and broadcast nationwide on Czech Radio Vltava. Content consists of closing, road capping and winter maintenance throughout the country, accident information from rescue services and detailed content from TIC Prague. Is there a plan to move this service from? EskÃÆ'½ rozhlas Vltava to? EskÃÆ'½ rozhlas Radio? UrnÃÆ'¡l for much better coverage.
Both RDS-TMC services are closed by 2017:
TELEASIST - transmitted on the radio network from? eskÃÆ'½ rozhlas Radio? urnÃÆ'¡l and available throughout the country. Information is provided by Teleasist in conjunction with Global Assistance. (TMC Service is shut down in 2017)
DIC PRAHA - transmitted on the frequency of Prague? eskÃÆ'½ rozhlas Plus - 92.6 MHz, provides detailed traffic information in the Czech capital. (TMC Service is shut down in 2017)
Denmark
The free TMC TM â„¢ DK-TMC service in Denmark is operated by Vejdirektoratet or DRD (Danish Road Directorate). This is broadcast on DR P1, P3 and P4. DRD is also responsible for the location table. The current version is 11.1 and contains about 10,000 location codes.
Finnish
V-Traffic, a commercial service in Finland, is provided by MediaMobile since 2007. This service covers the largest cities and roads 1-999, covering the whole country. TMC messages are broadcast nationwide on Yle Radio Suomi. V-Traffic uses several sources of information to broadcast validated traffic data, including floating car data as well as data from public authorities, traffic cameras, radio stations, road users and some partnership companies. This service is encrypted, based on the specifications set by TISA. This service is available in most of the navigation units sold in new cars, such as Volkswagen, Audi, Seat, Opel, Volvo, Toyota, Lexus, Mercedes-Benz, Subaru, Suzuki, and Skoda, as well as Garmin portable navigation devices.
The location tables are public and provided by the Finnish Traffic Agency. The latest version, V2.1, contains about 28,000 location points.
French
Only commercial RDS-TMC traffic broadcast services are available in France.
V-Traffic Commercial is provided by Mediamobile , a subsidiary of TDF, with two shareholders: Renault and Vinci. The traffic service provides real-time information on 185,000 km of major roads in France, including all highways (11,800 km). It is transmitted on the frequency of France Inter and is nationally accepted (99% of national coverage). The service is not encrypted, but limits access using different location table numbers. In 2010 the company entered into a partnership with MÃÆ'Ã… © tÃÆ' Â © o-France for general road hazard services.
Other commercial services are provided by ViaMichelin and Carte Blanche Conseil , which are shipped by the Towercast network ( NRJ group). In September 2005, PSA Peugeot CitroÃÆ'Â menn signed a partnership with ViaMichelin .
A free TMC service is offered by Autoroute FM but discontinued in 2012.
Location table released by government agency SETRA . The latest version 10.1 is certified by TISA in 2013 and released in 2014. It covers 184,913 km of roads in France, and contains about 25 984 location data points.
German
Germany offers both public and commercial services. Public service is an open, free service that is acceptable to public radio stations.
Another service, TMCpro , is a paid service provided by Navteq Services GmbH and owned by Navteq. It was developed and initially provided by T-Systems Traffic GmbH, a subsidiary of T-Systems purchased by Navteq in January 2009. The service was broadcast live in Germany in early 2005. This content is provided by ddg Gesellschaft fÃÆ'¼r Verkehrsdaten mbh , a wholly owned subsidiary of T-Systems Traffic GmbH . This is an encrypted service based on conditional access specifications of the TMC Forum .
BAST , German Federal Road Research Institute, released a location table. In version 5.1 all major access roads to the football arena used in the World Championships in 2006 were added. The current version is 10.1 and contains 44,233 location codes.
Greek
The TMC service has been available in the Attica region since September 2010, to be launched for national coverage in 2011. This service is provided by TrafficNav, a Budapest-based traffic information company, and available on Radio Galaxy and DeeJay Radio. This service is accessible to most Garmin and Mio navigation devices and will be featured on some built-in car navigation devices.
The second TMC service is provided by Be-Mobile, a service provider based in Belgium. This service is available through Sentra FM.
Hungarian
The national TMC service has been available since 2008. The service is provided by TrafficNav, the Budapest traffic information company and available on the national Pet Radio FM network (Channel 2 of Magyar RÃÆ'¡diÃÆ'³, Hungarian State Radio). This service is accessible to most navigation devices manufactured by TomTom, Garmin, Navigon, Mio, and Navon, and is featured in several integrated car navigation devices, including Volvo, Toyota and Lexus models of choice. This service is based on V2.0 from the Hungarian location table.
Indonesia
In October 2009, GEWI Europe GmbH & amp; Co. KG released TISA Location Table version 1.0 for Indonesia. GEWI Location Table updated version 1.1 certified by TISA on March 14, 2012.
In September 2011, iQios Sejahtera launched the first real-time traffic service in Indonesia.
Iran
The TMC service is currently unavailable, even though the infrastructure is already available; initially for use by the Iranian National Broadcasting Company (IRIB). The service is expected to be available to the public by 2020.
The Rayan amin company has started research in this field
ireland
TMC for Dublin began operations in November 2010. The service is extended to provide nationwide coverage later that year. This service is provided by TrafficNav, the Budapest traffic information company and available on RTÃÆ'Â ° Radio 1, the national FM network of Radio Negara Ireland. Data sources include real time traffic information provided by Dublin City Council. This service is accessible to most Garmin navigation devices and will soon be featured on some built-in car navigation devices.
Israel
The commercial RDS-TMC service was initiated by Decell Technologies in February 2011. Decell provides national coverage broadcast by several regional radio stations. Content distribution depends on the TISA 36 certified TMC Decet location table. Decell provides real-time traffic and traffic data on RDS-TMC for all leading navigation companies.
Italy
Free public RDS-TMC service is available in Italy on 1 July 1998, offered by RAI. CCISS (National Traffic Information Center) provides services. RAI broadcast on Rai Radio 1 , Radio2, and Radio 3 FM. This service covers the whole country.
Commercial service is provided by RTL 102.5 radio station in collaboration with InfoBlu . This service covers 90% of the Italian population, and still extends coverage.
The Italian location table, provided by RAI-CCISS, is in version 2.1 with about 12,500 codes.
Starting April 2018, the location table is in version 4.3 with over 41,000 codes. It has all the highways, country roads, road areas and urban roads to the main cities.
Dutch
In the Netherlands there are private and public TMC services.
Personal services are provided by VID in collaboration with Be-Mobile, and broadcast through Radio 2 and 3FM.
One free service is provided by ANWB in collaboration with the Simacan technology provider. This service is broadcast via Sky Radio radio station, Radio Veronica, and BNR Nieuwsradio.
Other free services are provided by VID in collaboration with Be-Mobile, and broadcasted via Radio 1 and Radio 538.
The location table comes from Nationale Databank Wegverkeersgegevens . The current version is 9.2, used since June 4, 2014.
New Zealand
The New Zealand Automobile Association broadcasts traffic notifications via FM radio broadcasts in and around Greater Auckland, Wellington, and Christchurch.
Norwegian
Since 2009, NRK is testing open TMC services. Open service is transmitted using P1 frequency. NRK broadcasts information on road works, planned closures and trails of mountains that close in winter. Updates on accidents and other unforeseen information are currently done Monday-Friday 05.30-22.00, Sat 09.30-17.00 and Sun 13.00-22.00.
Commercial radio stations P4 and Mediamobile provide TMC service called V-Traffic in Norway. This service is encrypted but is free for all private users when the navigator manufacturer has incorporated it into its product.
The Norwegian FM network will close in January 2017 and with it, it is expected that all TMC services will be closed. Since 2014, P4 and Mediamobile run Digital Radio services replacing RDS-TMC in Norway. This service runs under the name V-Traffic DAB.
Statens vegvesen, Norwegian Public Street Administration (NPRA) , provides a table of locations.
Polish
On May 1, 2010, a commercial TMC service is available in Poland, transmitted by RMF FM radio station. The service, called V-Traffic, is provided by Mediamobile, a subsidiary of TDF Group, one of Europe's largest broadcasting service providers, based in Paris.
In Poland, services are available on PND devices: Garmin, Mio, and Becker, as well as embedded navigation in cars used by Toyota, Volvo, and Ford. The service is built on over 100 different sources, processed automatically (Floating Car Data) or manually by operators at the Mediamobile Traffic Information Center based in Warsaw. The minimum guaranteed signal coverage is 95% of the population and 93% of the geographic coverage.
In November 2012, CE-Traffic launched a commercial TMC service in Poland - Premium RDS-TMC. CE-Traffic partners with the EuroZET media group that is part of the LagardÃÆ'¨re Group, to provide connectivity across the country. This service is based on CE-Traffic data generated from Floating Car Data system that integrates with journalistic information. These are available for major interconnection roads, urban roads in 15 major cities, and other roads used by drivers as shortcuts or alternate routes.
The location table includes future changes in the backbone network until the end of 2013.
Portugal
Since March 2011 TMC has been conducted on RFM radio, provided by Be-mobile. Be-Mobile released TMC table version 1.1. Navteq Maps edition since Q3/2011 now provides TMC coverage for Portugal. There are now three TMC channels in Portugal.
Recently, Summer Blast radio was included in the TMC which provides coverage for Portugal.
Romanian
Starting May 30, 2012, TMC service is available in Romania, on a private radio station (ProFM). This service is provided by TrafficNav.
TraficOK is the first TMC system to be tested and implemented in Romania. The system uses a location table of over 11,500 entries, which provides almost full coverage of Romania's road infrastructure. This table was developed by AROBS and certified by TISA - Tourist Information Service Association. Data on traffic flows, events, weather warnings, road improvements and traffic congestion are collected from several sources. The TraficOK project was developed by AROBS Transilvania Software and Be-Mobile. Messages are sent through Europa FM radio stations (in FM bandwidth) to various hardware devices (navigation systems, mobile phones, etc.) that are equipped with TMC modules.
TraficOK direccanakan acan tersedia of Bucharest, Ploiesti, Pitesti, Constanta, Brasov, Cluj Napoca, Targu Mures, Oradea, Arad, Timisoara, Iasi dan Bacau.
Singapore
In June 2006, GEWI Europe GmbH & amp; Co. KG released the first TISA TMC Certified Location Table for Singapore. The Singapore Company, GEWI Asia Pacific Pte. Ltd. offering services. The latest 1.3 location table version, updated and certified in March 2014, includes the Marina Coastal Expressway, over 150 car parking locations in the Central Business District and downtown area. GEWI traffic service is available on some smartphone models, PAPAGO !, Garmin and TomTom navigation devices, Honda and Toyota car navigation systems.
In November 2010, the Land Transport Authority announced the launch of the Location Table for Singapore. Quantum Inventions offers traffic data services based on these location tables and includes traffic incident information, traffic speed, parking availability, weather, road closures, etc. The various brands of GPS systems that use Galactio software provide this dynamic data in the navigation system.
Slovakia
There are two RDS-TMC services operating in Slovakia.
"SSC RTVS" - is a free public TMC service that transmits on Slovensky Rozhlas - Radio Slovensko network. The submitted content consists mainly of static information - road repairs and road closures. Information submitted in this service is shown also on the web www.zjazdnost.sk from Slovenska sprava ciest.
"DECELL (SK)" - is a paid service, launched in May 2013. Messages are sent across the country on the Fun Radio private radio station. The information consists of the current traffic situation provided by CE-Traffic a.s and is available exclusively to Garmin navigation device owners .
In May 2014, a new version of 3.2 of the location table was released, covering all roadways and all important roads.
Slovenia
The national TMC service is available in June 2009. The service is provided by TrafficNav, the Budapest traffic information company and available on two national FM networks Radiotelevizija Slovenija, Slovenian National Public Radio (ARS and Radio SI). This service is accessible to most Garmin navigation, Navigon and Navo navigation devices and will soon be featured on some car-mounted car navigation devices. This service is based on V3.0 from the Slovenian location table.
The Motorway Company in the Republic of Slovenia set up a new location table DARS 702-35, V1.1 which is available for free for integration in maps. The service is also transmitted on two national FM networks Radiotelevizija Slovenija, Slovenian National Public Radio (Prvi and Radio Val 202).
South Africa
Garmin first offered service in South Africa, in time for the FIFA Football World Cup in 2010. Navigon came on board shortly thereafter.
TMC Services in South Africa has been available since the end of 2009, services provided by Altech Netstar. In partnership with INRIX, Altech Netstar broadcasts their Premium Traffic Service in Gauteng, Kwa-Zulu Natal and Western Cape Peninsula. The company plans to launch in Orange Free State, Eastern Cape and Mpumalanga in 2012. Altech Netstar offers commercial services to OEM and Commercial Customers. Altech Netstar broadcasts XML services to their device partners and wholesale customers.
Spanish
TMC service is available in Spain on RNE 3 . It is provided by SCT as a traffic management operator in the Autonomous Community of Catalonia, DT in the Basque State Autonomous Community and DGT (Directorate General of Traffic) for the whole country.
The coverage of the road network is the highways, national roads and first-tier roads that the Autonomous Community has. RACC works on urban services, starting with Sevilla and Barcelona for broadcast on RNE 2 .
The location table is provided by DGT , DirecciÃÆ'³n General de TrÃÆ'¡fico . The current version is 2.1 and contains about 7,750 entries.
Swedish
The most widely used TMC service in Sweden is run by Mediamobile under the name V-Traffic Premium RDS-TMC. This is a fully encrypted service with a focus on congestion, slick road warnings, and other safety related messages for drivers.
Public services are available in Sweden. The Swedish Transport Administration, or Trafikverket, is responsible for the location table. Version v2.3 contains about 17,337 data points, and includes 1138000 km of Swedish road network.
Public services have not been developed since 2009 when the government decided to stop the distribution of end-user services. This service will run at least until the end of 2015.
Sweden is divided into 8 broadcast zones to avoid transmitting useless traffic information at that location. They include European, national and mainstream roads. The service is broadcast on Sveriges Radio P3 radio station and covers 98 percent of Sweden.
The Swedish Transport Administration (Trafikverket) has an information page for the RDS-TMC Trafikverket in Sweden.
Switzerland
TMC service is available in Switzerland. An announcer is an SRG SSR id Æ' © © e suisse or Swiss Broadcasting Corporation that transmits TMC on FM 1 chain and <3> FM chain 3 throughout Switzerland.
- In the German language area: Radio SRF 1 (G)/Radio SRF 3 (G)/La 1ÃÆ'¨re (F)/Rete Uno (I) partially
- In French-speaking areas: La 1ÃÆ'¨re (F)/Couleur 3 (F)/DRS 1 (G)/Rete Uno (I) partially
- In the Italian language area: Rete Uno (I)/Rete Tre (I)/DRS 1 (G)/La 1ÃÆ'¨re (F)
The daughter company Viasuisse operates the service.
The location code is the responsibility of the Swiss Federal Aviation Authority FEDRO but B S Ingenieur (Bundesamt fuer Strassen) distributes the location table. Version 5.5 contains about 10,000 codes.
Taiwan
Taiwanese police station and the Ministry of Transport and Communications (MOTC) both broadcast RDS-TMC traffic data. Currently available for TomTom, Garmin, Panasonic, PaPaGo and Mio.
Turkish
Turkey has 3 TMDS RDS services. 1: HERE (formerly NAVTEQ) has the largest RDS-TMC service in Turkey, covering the 11 largest cities in the country: Istanbul, Ankara, Adana, Bursa, Mersin, Izmir, Eskisehir, Antalya, Konya, Kayseri, and Gaziantep. This service was launched in July 2012. 2: TMC Services in Turkey has been published by Basarsoft and TrafficNav in 2012. TMDS RDS is only available in cities where traffic congestion is a big problem for the community. Istanbul, Ankara, Izmir, Antalya, Bursa is a city where broadcasting is being done. 3: TMC Services in Turkey published by Be-Mobile and Infotech in 2012. TMC RDS service is available in Istanbul, Ankara, Izmir, Bursa, and Antalya.
All 3 Turkish TMC services are paid services and users can have them in Navigation devices. Both PND and Automotive products use TMC services in Turkey.
United Kingdom
The INRIX provides a commercial TMC service, iTMC in the UK. It is broadcast nationwide on FM Classic and other commercial radio stations. The BBC charter prohibits it from bringing in commercial services. ITIS provides traffic data in RDS-TMC to major automotive companies (BMW, Mercedes, Toyota, Ford, Renault, Jaguar Land Rover, and others). The price of the service is included in the price of the car or the navigation system.
The system uses Floating Vehicle Data, which includes position information from more than 160,000 fleet vehicles installed. This data comes with journalistic data or "Incidents" provided by Trafficlink. Trafficlink is owned by ITIS and provides traffic and travel bulletins to BBC Radio and over 95% of UK commercial radio stations. Incident data includes road works, accidents and closures.
Trafficmaster, the Teletrac Navman brand, operates national services using local and regional Global Radio broadcasters to ensure acceptance across the entire UK. The system uses a roadside infrastructure to measure vehicle travel times between sensors that are placed several miles apart, and use plate number recognition technology. Data sources used by Teletrac Navman include Floating Vehicle data from installed telematic devices, 8500 undersea inductance loops, over 1800 CCTV cameras, congestion filling cameras, Police control rooms plus an ownership network of ANPR and IR sensor cameras across the road network. Teletrac Navman provides traffic data on RDS-TMC for major automotive OEM brands including VW, Audi, Skoda, Mazda, Chrysler, Honda, Seat and Vauxhall. Teletrac Navman also provides the Department of Transport with historical traffic data for modeling purposes used by central and local governments and their subcontractors when analyzing opportunities for upgrading of the road network.
Both services maintain their own location table. The current location table version of the ITIS is 5.1. The current location table version of Trafficmaster is 3.1.
United States and Canada
In the United States, XM Satellite Radio and Sirius Satellite Radio provide TMC services throughout the US. Navteq provides traffic data to both providers. Traffic Navteq provides traffic and related advertisement information via RDS and HD signals to the national navigation device. Navteq also provides traffic data sourced from sensors, probes, and other technologies in 10 countries by December 2009. INRIX, Inc. combine TMC data with real time flow information from a dense floating mobile network and mobile devices with information from other public and private sources to provide real-time and predictive traffic information.
iHeartMedia and Tele Atlas have TMC services called Total Traffic Network ( TTN ), using FM RDS in 77 cities in the US and three Canadian metropolitan areas. These services are both offered by subscriptions and initially available to many in-car navigation units via expansion modules purchased separately.
TomTom RDS-TMC Traffic Receiver obtains information via FM channel broadcast by Clear Channel regional provider. By connecting a compatible TomTom navigation device to the RDS-TMC Traffic Receiver, users receive traffic information via a TMC connection. Traffic alerts appear in the traffic bar on the right side of the screen. Tapping the traffic bar reveals more information, such as an accident or traffic delay. RDS-TMC Traffic Receiver is compatible with TomTom VIA, GO 920, TomTom GO 720, TomTom ONE XL and TomTom ONE 3rd edition series. It integrates RDS-TMC Traffic information with TomTom GO and ONE products.
In addition to these aftermarket services, six major motor manufacturers offer RDS-TMC as standard in their US vehicles, including Volvo and BMW.
Ibiquity HD Radio provides TMC service based on RDS-TMC.
More areas
Current and planned TMC service maps are available from the Traffic Messages Channel.
In Luxembourg, no services are planned at this time.
The location table for UAE v4.0 has been certified.
In Turkey, various location tables are available.
Source of the article : Wikipedia
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