A traveling controller that controls traveling of an autonomous car, the traveling controller, comprising: a memory; and a processor that, in operation, performs operations including: acquiring meeting information indicating a place of a meeting with a user and a time of the meeting with the user; calculating a remaining time between the time of the meeting and a current time; determining a waiting time for waiting in a waiting place by the autonomous car and a traveling time for traveling to the place of the meeting by the autonomous car, the determining including: calculating a waiting cost for waiting in the waiting place by the autonomous car based on a waiting charge incremented every predetermined unit time, calculating a traveling cost based on fuel efficiency performance or electrical cost needed for traveling per unit time, the traveling cost being a cost of a source of energy consumed in the traveling to the place of the meeting by the autonomous car, calculating a ratio of the waiting time to the travelling time according to the waiting cost and the travelling cost such that the ratio indicates a minimum total cost and makes a total time within the remaining time, wherein: the fuel efficiency performance is based on travelling conditions, the travelling conditions including at least one of a carrying capacity, type of fuel, a travelling pattern, a road surface state or a tire air pressure, the total cost including a traveling cost of the traveling and a waiting cost of the waiting, the total time including the waiting time and the traveling time; and determining a route along which the autonomous car is to travel to the place of the meeting within the determined traveling time; wherein the calculation of the ratio includes taking into account waiting charges and location information associated with one or a plurality of parking lots; further including determining whether to charge a battery that supplies power to the autonomous car at a charging station during the waiting time to maximize the waiting time at the charging station and minimize the waiting cost. a memory; and a processor that, in operation, performs operations including: acquiring meeting information indicating a place of a meeting with a user and a time of the meeting with the user; calculating a remaining time between the time of the meeting and a current time; acquiring meeting information indicating a place of a meeting with a user and a time of the meeting with the user; calculating a remaining time between the time of the meeting and a current time; determining a waiting time for waiting in a waiting place by the autonomous car and a traveling time for traveling to the place of the meeting by the autonomous car, the determining including: calculating a waiting cost for waiting in the waiting place by the autonomous car based on a waiting charge incremented every predetermined unit time, calculating a traveling cost based on fuel efficiency performance or electrical cost needed for traveling per unit time, the traveling cost being a cost of a source of energy consumed in the traveling to the place of the meeting by the autonomous car, calculating a waiting cost for waiting in the waiting place by the autonomous car based on a waiting charge incremented every predetermined unit time, calculating a traveling cost based on fuel efficiency performance or electrical cost needed for traveling per unit time, the traveling cost being a cost of a source of energy consumed in the traveling to the place of the meeting by the autonomous car, calculating a ratio of the waiting time to the travelling time according to the waiting cost and the travelling cost such that the ratio indicates a minimum total cost and makes a total time within the remaining time, wherein: the fuel efficiency performance is based on travelling conditions, the travelling conditions including at least one of a carrying capacity, type of fuel, a travelling pattern, a road surface state or a tire air pressure, the total cost including a traveling cost of the traveling and a waiting cost of the waiting, the total time including the waiting time and the traveling time; and determining a route along which the autonomous car is to travel to the place of the meeting within the determined traveling time; wherein the calculation of the ratio includes taking into account waiting charges and location information associated with one or a plurality of parking lots; further including determining whether to charge a battery that supplies power to the autonomous car at a charging station during the waiting time to maximize the waiting time at the charging station and minimize the waiting cost. the fuel efficiency performance is based on travelling conditions, the travelling conditions including at least one of a carrying capacity, type of fuel, a travelling pattern, a road surface state or a tire air pressure, the total cost including a traveling cost of the traveling and a waiting cost of the waiting, the total time including the waiting time and the traveling time; and determining a route along which the autonomous car is to travel to the place of the meeting within the determined traveling time; wherein the calculation of the ratio includes taking into account waiting charges and location information associated with one or a plurality of parking lots; further including determining whether to charge a battery that supplies power to the autonomous car at a charging station during the waiting time to maximize the waiting time at the charging station and minimize the waiting cost.