İstanbul (Halkalı) - Ankara high-speed train journey via Marmaray Tunnel by TCDD's (Turkish State Railways) HT 65000 (CAF) high-speed train set.
Train has 250 km/h maximum operating speed on high-speed line. Total travel time is too much for a high-speed train because of uncompleted sections of high-speed line and speed restrictions in urban areas.
