The Alsancak railroad station seemed to have lost its function. In 2007 I saw neither a train nor tickets being sold, just empty waiting rooms and platforms. When I visited in 2015 it was a functioning station again.

The Wikipedia mentions: "the second-oldest railway station in Turkey, after the Kemer Railway Station (also in İzmir), being completed in 1858. The station houses the headquarters of TCDD District 3 and is the largest station in Turkey by size. "