A route planning apparatus is provided. The apparatus may include a display, a user interface, a caution information reader, and a route verifier. The display displays a user-scheduled route on a map. The user interface accepts an input of time and date to travel on the route. The caution information reader reads caution information having influence on the travel and associated with position, and time and date. The route verifier verifies whether the travel on the route is available based on one or more positions, and times and dates at which the caution information read by the caution information reader indicates, one or more positions on the route, and the inputted travel time and date.