Communication-capable navigation system

Communication-capable navigation system comprising an information center, at least one attached to a car navigation unit and a communication means for enabling a bi-directional data communication between the information center and the navigation unit, wherein the navigation unit: position sensor means for detecting the current position of the vehicle, a destination input means for inputting the target position of the vehicle, a memory means for storing time-related position data indicative of the determined position of the vehicle sensor device positions and the time when the vehicle passes through the vehicle position in question, as well as a data transmission device for transmitting data through the communication means to the information center, comprising the sensed by the position sensor device current position data, the target data input by the destination input device and the time-related data stored in the memory means, and wherein the information center comprises: a database that stores the road data is stored, and a travel path pick finding device which operates on receiving the current position data and the destination data from the navigation unit out a recommended drive away from the current ...