Adjustment values, including a station stop time or a departure interval, are set for each vehicle. Next, the set adjustment values and a traveling pattern are used to calculate the power consumption by and regenerative power from each vehicle when in operation for each time point. Next, the total vehicle power at each time point is calculated by subtracting the total regenerative power from braking vehicles from the total power consumption by powering vehicles one a per time point basis. Next, a positive value or a negative value is extracted from the total vehicle power at each time point. Next, an evaluation value is calculated using the absolute value of the total of the extracted values. Next, adjustment values that produce the smaller evaluation value are identified.