A method and system for route planning based on time

摘要

A method of planning a route to a destination, comprising: using a map database, stored in a navigation device, which defines roads in terms of segments, including the map database predefined fixed cost data independent of time, not having measured or inferred cost data independent of time from traffic data and being associated with each segment of the map database, and also including the map database cost data depending on of the time that is data that results from analyzing traffic data for at least one of the segments; and use software to allow the route to the destination to be planned and an estimated cost of reaching the destination calculated using one or more route segments, including the one or more route segments defined segments 10 in the database of map and that form the route; wherein the software plans the route automatically using cost data as a function of time for at least one of the route segments, so that a cost is applied to traverse a particular route segment that is appropriate for the specific time at which has been planned to cross the particular route segment, and automatically using the predefined fixed cost data independent of time for other route segments that are not provided with cost data as a function of time; the method further comprising: using an additional map database, stored in a central server device, the additional database including the data as a function of the time that is the data resulting from having analyzed the traffic data for at least one of the segments; and use software to allow planning a route to the destination using the additional map database and to calculate an estimated cost of reaching the destination using one or more route segments that include the segments defined in the map database and that form the route; where the navigation device informs the server of the lowest cost route that it has calculated and the server sends a notification to the navigation device if the lowest cost route calculated using the server database is different from the route that You have calculated the navigation device.