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Are the trucks positioned only with GPS under the automatic system?
Additional positioning sensors (dead reckoning with directional gyro and speedometer signals) are used to support the GPS positioning by the On-Board Unit. This process is independent of the GPS positioning. The results of the two processes are continuously matched against each other.
This further improves the identification of toll road segments. It even allows the system to function without GPS for a short time.
How exact is GPS positioning?
The system determines the majority of positions to within 10 metres. At all critical points, for example where non-toll roads run parallel to toll roads, support beacons send additional positional data to the On-Board Unit and make positioning more precise.
Can the toll system also use the positioning information gathered by the future Galileo satellite system?
The Toll Collect-System is designed to function with Galileo as well. The setting of this European satellite system currently occurs and will be used after its implementation primarily for commercial and scientific purposes.
Toll Collect advertised that the On-Board Units would also be able to access value-added services. Are the units technically able to do so?
Toll Collect was tasked with setting up and operating an electronic toll collection system for heavy freight traffic in Germany. Traffic telematic services were not a part of this order and are not offered. Toll Collect designed the technical capabilities of the equipment so that traffic telematic services can theoretically be offered in the future. Toll Collect OBUs could then also increase the efficiency of transport company work processes -- but only if the federal government agrees to setting up a telematics market and the EU Commission's conditions are fulfilled.
Toll Collect 
