5 ft 6 in gauge railway
Country/territory Railway Route length Notes
Argentina San Martín Railway operating
Argentina Sarmiento Railway operating
Argentina Mitre Railway except Tren de la Costa in standard gauge ; operating
Argentina Roca Railway except La Trochita , Central Chubut Railway and Ramal Ferro Industrial Río Turbio [ es ] in 750 mm ( 2 ft 5 1⁄2 in ) gauge ; operating
Bangladesh Bangladesh Railway 682 km ( 424 mi ) operating
Chile * Empresa de los Ferrocarriles del Estado operating
India Indian Railways 67,368 km ( 41,861 mi ) operating
India Delhi Metro 65 km ( 40 mi ) Phase-1 lines only ; operating
India Kolkata Metro 27.22 km ( 16.91 mi ) Line 1 only ; operating
Iran Zahedan to border with Pakistan operating
Nepal Nepal Railways 59 km ( 37 mi ) operating
Pakistan Pakistan Railways 7,791 km ( 4,841 mi ) operating
Sri Lanka Sri Lanka Railways 1,508 km ( 937 mi ) operating
United States Bay Area Rapid Transit ( BART ) San Francisco Bay Area 109 mi ( 175 km ) operating
Operational installations
, a broad gauge, is the track gauge used in India, Pakistan, western Bangladesh, Sri Lanka, Argentina, Chile, and on BART (Bay Area Rapid Transit) in the San Francisco Bay Area. In North America, it is called Provincial, Portland, or Texas gauge. In Argentina, it is known as trocha ancha (Spanish for broad gauge). In the Indian Subcontinent it is simply known as broad gauge. Elsewhere it is known as Indian gauge. It is the widest gauge in regular passenger use anywhere in the world.