Īfter consultation with ECMT, a combined approach was developed called the ALERT C Protocol that aimed to combine the best features of each approach. These 33 bits gave a theoretical total of 8.5 billion location codes, most of which could never be used.
#CARMINAT TOMTOM LIVE HACK CODE#
The Madrid proposal of 1987, by comparison, had required 33 bits to code problem location, with separate fields for road number, road class, area of the country, etc. A standard 16-bit location code was, therefore, adopted for inter-urban networks. Calculations for France, Britain and elsewhere suggested that around 30,000 to 40,000 locations should be enough for most European national or U.S. An efficient coding system would require only 16 bits to code these, simply by numbering each intersection from 1 to 65535. Initial estimates suggested that, in Europe, a maximum of 65,000 significant junctions might be needed for the Federal Republic of Germany. Tests also continued at CCETT and BBC on the CARMINAT approach, which formed the basis of an alternative ALERT B coding proposal.Ī major question addressed in the Alert A scheme was the total number of traffic event locations to be coded. CRC produced a proposal for a modified BASt/Blaupunkt single group message definition, which became known as the ALERT A coding scheme. Then, in 1987, the CEC invited Castle Rock Consultants to lead a joint team that would take TMC development a stage further. A second proposal, by Bosch-Blaupunkt and the German Road Research Institute BASt, sought to use just a single RDS Group per traffic message. Within these RDS Groups, 32 bits per group would be used for traffic data, giving a total traffic message length of 64 bits. This proposal required the use of at least two 104-bit RDS data groups for each message. Īn initial proposal for defining RDS-TMC data fields had been made to the European Conference of Ministers of Transport (ECMT) in Madrid, based on a scheme developed by CCETT and Philips in the Eureka-sponsored CARMINAT research project. The main goal of the project was to develop and build consensus upon a draft standard for broadcasting RDS-TMC traffic messages in densely coded digital form.
If you would like more detailed information about LIVE Services and its features you can find it here: technical proposals for an RDS-TMC broadcasting protocol were first developed in the European Community's DRIVE programme research project RDS-ALERT, a partnership of the BBC, Philips, Blaupunkt, TRRL and CCETT led by Castle Rock Consultants (CRC). TomTom Places allows you to search for certain specific locations and businesses in order to navigate to these. This service gives you local, daily, and five-day forecasts on your TomTom device, helping you make plans based on the weather. The LIVE QuickGPSfix speeds up the time it takes to fix your GPS position, helping you to set off within 30 seconds - even when the GPS signal is weak or partially blocked. Your Carminat TomTom device uses the signals of at least 4 satellites to find out where you are in order to start navigating.
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