narrow gauge: 644 km 1.000-m gauge (438 km electrified) (1998)

Sri Lanka: total: 1,463 km

broad gauge: 1,404 km 1.676-m gauge

narrow gauge: 59 km 0.762-m gauge (1996)

Sudan:
total: 5,311 km

narrow gauge: 4,595 km 1.067-m gauge; 716 km 1.6096-m gauge
plantation line

note: the main line linking Khartoum to Port Sudan carries over
two-thirds of Sudan's rail traffic

Suriname:
total: 166 km (single track)

standard gauge: 80 km 1.435-m gauge

narrow gauge: 86 km 1.000-m gauge