narrow gauge: 525 km 1.000-m gauge

Tokelau:
0 km

Tonga:
0 km

Trinidad and Tobago:
minimal agricultural railroad system near San
Fernando; railway service was discontinued in 1968

Tunisia:
total: 2,168 km

standard gauge: 471 km 1.435-m gauge

narrow gauge: 1,687 km 1.000-m gauge

dual gauge: 10 km 1.000-m and 1.435-m gauges (three rails)

Turkey: total: 8,607 km

standard gauge: 8,607 km 1.435-m gauge (1,524 km electrified) (1999)