Changes to the plan also occurred in the construction phase. Due to the route of the tracks to the old station, construction needed to be done in two phases, with the first stage, including tracks 9 to 16, going into service on 22 October 1922. The tracks to the old station were cut at the same time.
The plan underwent modifications during the construction phase.  Because of the track route to the old station, the project was divided into two phases. The initial stage, which included tracks 9 through 16, went live on October 22, 1922. At the same time, the tracks leading to the old station were cut.