World:
total: 1,201,337 km includes about 190,000 to 195,000 km of
electrified routes of which 147,760 km are in Europe, 24,509 km in
the Far East, 11,050 km in Africa, 4,223 km in South America, and
4,160 km in North America; note - fastest speed in daily service is
300 km/hr attained by France's Societe Nationale des Chemins-de-Fer
Francais (SNCF) Le Train a Grande Vitesse (TGV) - Atlantique line

broad gauge: 251,153 km

standard gauge: 710,754 km

narrow gauge: 239,430 km

Yemen:
0 km

Yugoslavia:
total: 4,095 km

standard gauge: 4,095 km 1.435-m gauge (1,377 km partially
electrified since 1992)

note: during to the 1999 Kosovo conflict, the Serbian rail system suffered significant damage due to bridge destruction; many rail bridges have been rebuilt, but the bridge over the Danube at Novi Sad was still down in early 2000; however, a by-pass is available; Montenegrin rail lines remain intact

Zambia: total: 2,164 km (1995)

narrow gauge: 2,164 km 1.067-m gauge (13 km double track)