https://en.wikipedia.org/wiki/Jakarta#Rail
"Each car measures 20 m (65 ft 7 in) in length, 2.9 m (9 ft 6 in) in width and 3.9 m (12 ft 10 in) in height."
https://en.wikipedia.org/wiki/Jakarta_MRT#Rolling_stock
https://en.wikipedia.org/wiki/Jabodetabek#Transportation
https://en.wikipedia.org/wiki/Medium-capacity_rail_system#List_of_systems
