M2 68 was put into service on Yenikapı-Hacıosman metro line and service was started with 8 series on weekdays.
With the increase in the total number of vehicles and the commissioning of the sets with 8, an improvement in passenger capacity of% 45 was achieved. Previously 4 23 with 3 in busy hour, 23.000 min. 8 with 20 wagon and 4 min. 40.000 passengers can be moved with intervals. In the calculations made over all flights during the day, a capacity increase of% 45 was achieved in the carrying capacity.
When the ratio of passengers to the number of passengers per day was increased by 92 wagons instead of 160, travel comfort increased significantly.