Navteq Traffic

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Navteq Traffic , originally as TMCpro called, is a paid TMC - congestion warning service , which through the RDS FM stations is spread -Unterträger of. In contrast to freeTMC, Navteq Traffic is sent as a fee-based offer (payTMC) only via private broadcasters and not via public broadcasters. The license fees are settled through the purchase price of the navigation systems equipped with them.

The service was introduced by T-Systems in April 2004 under the name TMCpro. Since it was acquired by Navteq in 2009, it has been marketed under the name Navteq Traffic.

Sensors

Sensor on a motorway bridge

With TMCpro's automatic data acquisition, the occurrence and resolution of traffic jams are reported more precisely than with TMC. The digital acquisition and further processing of the data enables it to be used in model-based calculations. The data is updated in short cycles. The model calculations adjust the key data of the traffic flow again and again. From this it can be deduced whether there is a traffic jam, slow traffic or free traffic.

Just like TMC, Navteq Traffic also uses data supplies from the police, ADAC or other human sources. As with TMC, information about the causes of traffic disruptions is extracted from this. On the other hand, it is possible to compare the model calculations with the officially reported traffic conditions. This also improves accuracy in the context of automated learning processes.

Navteq Traffic uses:

  • 4000 automatic data sensors on motorway bridges
  • 5500 sensor loops integrated into the road
  • > 50,000 vehicles with Floating Car Data (FCD) technology

service

The service is offered by Navteq Services GmbH (formerly T-Systems Traffic GmbH ), a wholly owned subsidiary of the geodata provider Navteq . Navteq took over T-Systems Traffic GmbH from T-Systems at the beginning of January 2009 .

The sensors automatically report traffic jams via GSM to the DDG Gesellschaft für Verkehrsdaten in Bonn, which in turn is a wholly-owned subsidiary of Navteq Services. Here the data is first checked, linked and regionalized and then compressed and encrypted via the VHF transmitter operator Media Broadcast and forwarded to the relevant regional broadcasters. An encryption service based on the specifications of the TMC forum is used. The system was developed by T-Systems .

Navteq Traffic version 2.0 has been expanded to include the following functions since mid-2007:

  • Early warnings
    • Short-term forecasts of significant changes in the traffic situation are broadcast as early warnings. Early warnings are coded as expected traffic disruptions and, within a short period of time after their registration, either automatically confirmed or canceled by a subsequent disruption report.
  • Traffic jam trends
    • Traffic jam trends are an important decision-making aid for route finding. They describe the growth behavior of existing disorders. If the traffic jam has already subsided, a large detour may no longer be worthwhile.
  • Construction site information
    • With an optimized construction site information system, construction site reports that concern the same road sections are summarized.

Navteq Traffic version 3.0 has been expanded to include the following functions since the end of 2008:

  • Road weather
    • Route-related information about obstructions due to extremely difficult weather conditions. So far, warnings have been issued against heavy rain and snowfall. Since the third quarter of 2009, the information from the measurement sensors on German motorways has also been used for black ice reports.
  • Interroads for Austria and Switzerland
    • Foreign reports about traffic disruptions close to the border are offered for an area of ​​approx. 50 km around the respective border crossing.

Data

According to the developers, the data throughput is 100 messages in four minutes. The digital recording and processing of the data enables - depending on the traffic density - a statistical model calculation for the prediction of formation, maximum, length and reduction of traffic jams.

So far, however, there are no reliable studies on the accuracy of such calculations.

Navteq traffic transmitter in Germany

Navteq Traffic in Austria

Navteq Traffic is currently not available as a service in Austria. However, ORF and ASFINAG jointly offer the TMCplus service in Austria . The TMCplus service is not encrypted and is 100% compatible with the previous ORF TMC service. That means: TMCplus can also be received with existing devices.

See also

  • Traffic situation service with a tabular overview of the various source and end-user services

Individual evidence

  1. ↑ Peter Röbke-Doerr: Past the traffic jam. The differences between TMC and TMCpro. In: c't 2006, issue 13, p. 218
  2. ↑ Navteq: Navteq Completes Its Acquisition of T-Systems Traffic, GmbH press release, January 6, 2009
  3. ↑ DDG Gesellschaft für Verkehrsdaten mbH ( Memento from September 11, 2014 in the Internet Archive )
  4. ↑ Digitalfernsehen.de Media Broadcast continues to send traffic data from Navteq.
  5. ↑ This is TMC information from ORF ( Memento of the original from August 21, 2011 in the Internet Archive ) Info: The archive link was automatically inserted and not yet checked. Please check the original and archive link according to the instructions and then remove this notice. @1@ 2Template: Webachiv / IABot / oe3.orf.at
  6. ↑ FAQ - All important questions and answers about the introduction of TMCplus. ( Memento of the original from August 21, 2011 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. @1@ 2Template: Webachiv / IABot / oe3.orf.at