| 摘要 |
<p>A navigation device comprises a guidance means, an acquisition means, and a control means. The guidance means introduces a recommended route to a destination that was found by a search using at least one of the conditions of rates, distance, road width, fuel consumption, or required time. The acquisition means acquires the current state of traffic signals in front on the recommended route. The control means causes the guidance means to introduce another guidance route according to the current state of the traffic signals that was found by a search using the same conditions as the recommended route.</p> |
