Navigation device and method for providing warnings for a speed trap

Method performed on a navigation device for providing warnings when moving, the method comprising:

• receiving positional information from the navigation device to determine whether a speed trap exist at a location associated with the received positional information;
• providing a database stored in the memory of the navigation device 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;
• providing a point to point speed warning, when point to point speed trap exists at the location, the point to point speed warning comprising a first warning when the threshold speed or speed limit is exceeded by a speed as determined by the navigation device, between the two detection point locations 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;
• computing the an average speed within the point to point speed trap;
• computing 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
• displaying the advisory speed on the navigation device.

A 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;
• and
• wherein, when a point to point speed trap exists at a location, the navigation device is arranged to:
• provide a first warning indicating entry into the point to point speed trap after passing the start point of the point to point speed trap;
• provide a second warning indicating exit from the point to point speed trap after passing the end point of the point to point speed trap;
• and
• continuously compute an average speed during travel within the point to point speed trap and provide a speeding warning in between the start point and end point of the point to point speed trap if the computed average speed exceeds a threshold speed or speed limit associated with the point to point speed trap.

A method performed on a navigation device for providing warnings when moving, the method comprising:

• receiving positional information from the navigation device to determine whether a speed trap exist at a location associated with the received positional information;
• providing a database stored in the memory of the navigation device 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;
• providing a point to point speed warning, when point to point speed trap exists at the location, the point to point speed warning comprising a first warning when the threshold speed or speed limit is exceeded by a speed as determined by the navigation device, between the two detection point locations 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
• continuously computing an average speed during travel within the point to point speed trap and provide a speeding warning in between the start point and end point of the point to point speed trap if the computed average speed exceeds a threshold speed or speed limit associated with the point to point speed trap.