Rail transport in France is mostly operated by SNCF, the French national railway company. France has the second largest European railway network, with a total of 29,901 kilometres of railway. However, the railway system is a small portion of total travel, accounting for less than 10% of passenger travel.
Since 1981, the SNCF has operated the TGV service, a high-speed rail network which has been consistently expanded in subsequent years.
Traffic is concentrated on the main lines: 78% of activity is done on 30% of the network (8,900 km) when the 46% smaller lines (13,600 km) only drive 6% of the traffic. The 366 largest stations (12%) make 85% of passenger activity, and the smallest 56% of stations take only 1.7% of traffic.
The French railway network, as administered by Réseau Ferré de France (RFF), disposes (June 2007) of a network of commercially usable lines of 29,213 kilometres (18,152 mi), out of which 15,141 km (9,408 mi) is electrified. 1,876 km (1,166 mi) of those are high speed lines (LGV), 16,445 km (10,218 mi) dispose of two or more tracks. 5,905 km (3,669 mi) are supplied with 1,500 VDC, 9,113 km (5,663 mi) with 25 kV AC at 50 Hz. 122 km (76 mi) are electrified by third rail or other means.
1,500 V current is used on the south while HSR lines and the northern part of the country use 25 kV current.