Ankara HST Complex fills an area of 370,000 square meters. On 37 railway lines, there are 16 buildings and facilities with a total indoor space of 51,629 square meters, consisting of 11 separate units [HST Sets, Main Maintenance Workshop (Level 1) Buildings A and B, Heavy Maintenance Workshops (Level 2) – Building C, Office and Building D, Technological Buildings – F, G and L, Treatment Units, Dynamic Test Unit, Catering Unit, Other Buildings (Under-Floor Wheel Lathe Workshop, Washing Unit, Vacuum Toilet-Cleaning Unit, Spare Material Warehouses), HST Sets, Park Areas]. There are also social areas within the HST Maintenance Facility at which the staff may eat, rest, change and clean up.