Tomtom Global Content B.v.

Koen Verheyen

Nick Cremelie

Tim Bekaert

Pascal Clarysse

Joachim De Witte

Chris Poppe

Erwin Perremans

Hans Verheyden

There is provided a method for identifying possible errors/inconsistencies within an electronic map representation of a network of navigable elements within a geographic area, the method comprising: obtaining at a server positional data relating to the movement over time of a plurality of devices travelling around the navigable network; processing the obtained positional data at the server with reference to the electronic map representing the navigable network in order to identify potential inconsistencies in the map in the form of one or more locations within the navigable network where an observed behaviour of devices travelling around the navigable network as indicated by the obtained positional data is not consistent with a behaviour that would be expected based on the electronic map. This information may then be relayed to navigation devices for supplementing the electronic map when generating navigation instructions.

Supplementing electronic map data from user behavior

A method of determining trajectories (-) through at least one junction of a transportation network for display on a visual representation of a digital map, the digital map comprising data that is a digital representation of the transportation network. The method comprises obtaining positional information relating to the movement of a plurality of mobile devices with respect to time on the transportation network through an area () comprising the at least one junction, the border of the area being divided into a plurality of segments. The positional information is used to create an entry histogram () by determining a count of positional information that enters the area at each segment of the border and an exit histogram () by determining a count of positional information that exits the area at each segment of the border; the histograms subsequently being used to define one or more entry () and exits () gates into and out of the area (). A trajectory through the area is assigned to pairs of entry and exit gates using the positional information.

Method of determining trajectories through one or more junctions of a transportation network

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Oudenaarde, Belgium

Koen Verheyen