The term 'Metro' is originated from Paris. The first line opened in 1900, when the EXPO is held. Since most of the lines were developed before 1930, stations and tunnel interior are historically interesting. Some lines are rubber-tire operation, and others are normal steal tire operation. While MP59, MP73 and MP89 are used in the former, MF67, MF77, MF88 and MF2001 are used in the latter.