200.9 km (124.8 mi) in revenue service; (226.5 km (140.7 mi) considering maintenance tracks)
Track gauge
1,435 mm ( 4 ft 8 + 1 ⁄ 2 in ) standard gauge , ( Lines A and 12 ); and roll ways along the outside of conventional standard gauge track ( Rubber-tired metro ) ( All other lines )