Halkapınar was the main freight and motive power depot of the SCP, while Izmir Basmane was the main passenger station. For a long time, Halkapınar was the also the main Izmir depot of TCDD until TCDD decided to transfer most of its activity to Bicerova depot, near Aliağa. This transfert was effective in 2006.
At the same time, the passenger station grew in importance, offering a convienent connection between the the metro, the suburb line and the long distance passengers.
Track changes at Hilal are making Halkapınar the central station on the suburb network, allowing direct routing on both the former SCP network and the former ORC network.