| 摘要 |
A method for route of travel determination in a navigation device (200) is disclosed. The method includes determining, using a processor (210) of a portable navigation device (200), map information for a route of travel from a first location to a second location, based at least in part upon average speed data for at least one type of road along the route of travel. The method further includes displaying the determined map information on a display device (240) of the navigation device (200). A navigation device (200) is also disclosed. The navigation device (200) includes a memory resource (230) to store average speed data for a plurality of types of road and average speed data for a plurality of roads and a processor (210) to determine map information for a route of travel from a first location to a second location, based at least in part upon the average speed data for at least one of the plurality of types of road along the route of travel. The navigation device further includes a display device (240) to display the determined map information.
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