Patent ID: 8896464

Claim:
Navigation device for providing warnings when moving, the navigation device comprising: a processor unit; and a memory unit that stores a database comprising: one or more point to point speed trap locations, wherein each point to point speed trap comprises two detection point locations forming a start point and an end point of the point to point speed trap, the processor unit is arranged to communicate with the memory unit and to receive positional information from a positioning device, wherein the processor unit is arranged to use the received positional information to determine whether a point to point speed trap exists at a location associated with the received positional information; wherein, when a point to point speed trap exists at a location, the navigation device is arranged to detect a speed between the two detection point locations and to provide a point to point speed warning, the point to point speed warning comprising a first warning between the two detection point locations when a threshold speed or speed limit associated with the point to point speed trap is exceeded and providing a second warning indicating an end point in the point to point speed trap after passing the end point of the point to point speed trap; and wherein the processor unit is further arranged to compute an average speed within the point to point speed trap and compute an adjustable advisory speed for travel within the point to point speed trap based on the average speed, a driving behavior within the point to point speed trap and the threshold speed or the speed limit for the road segment associated with the point to point speed trap and display the advisory speed on the navigation device.