Abstract: A method and apparatus for selecting and displaying a route preferable to a driver while reducing the frequency of changing the route. A dynamic strategy is computed which depends on time required to reach each intersection to be passed through between a departure place and a destination place. A probability distribution of the required time for each intersection and a driving direction to be selected is computed according to the computed dynamic strategy. A driving direction having the highest probability of the required time is sequentially selected to determine intersections to be passed through to the destination. At each intersection, the probability of the required time for each driving direction can be added and a driving direction that has the highest total probability among the results of the additions can be sequentially selected.