Method and system for providing routing guidance

摘要

A method performed by a navigation system to provide guidance to a driver of a vehicle when the vehicle departs from a route to a destination for which route guidance was being provided by the navigation system. Intersections that can be reached by the vehicle while calculation of a new solution route to the destination is being performed are identified. For each identified intersection, cost factors associated with the possible paths leading from the identified intersection are modified to increase the likelihood that the new solution route include those paths with the least cost factors.