navigation method and device for planning time dependent route

摘要

navigation method and device for planning time-dependent routes the present invention combines the possible geographic coverage with fixed pre-defined route segment costs (eg the legal speed limit) with, where possible, higher time-dependent costs . a user, for example, of a portable navigation device, can then continue to plan the route as before for virtually any destination in a country covered by the stored map database, but, whenever possible, can also use the traffic data with time-dependent costs, such that the congestion effect with any time predictability can be precisely received taking into account as an automatic base process. it leaves the user to simply continue driving, following the guide offered by the navigation device, without the need to worry about the congestion that exists now, and whether it will impact their trip.