narrow gauge: 51 km (46 km 1,000-m gauge; 5 km 0.750-m gauge) (1998)
Slovenia: total: 1,201 km
standard gauge: 1,201 km 1.435-m gauge (489 km electrified) (1999)
Solomon Islands:
0 km
Somalia:
0 km
South Africa:
total: 21,431 km
narrow gauge: 20,995 km 1.067-m gauge (9,087 km electrified); 436
km 0.610-m gauge (1995)
Spain:
total: 13,950 km
broad gauge: 12,781 km 1.668-m gauge (6,358 km electrified; 2,295
km double track)
standard gauge: 525 km 1.435-m gauge (525 km electrified)