Colonization of the Moon
If multiple bases were established on the lunar surface, they could be linked together by permanent railway systems. Both conventional and magnetic levitation (Maglev) systems have been proposed for the transport lines. Mag-Lev systems are particularly attractive as there is no atmosphere on the surface to slow down the train, so the vehicles could achieve velocities comparable to aircraft on the Earth. One significant difference with lunar trains, however, is that the cars would need to be individually sealed and possess their own life support systems.
High-speed rail in China
China has the world's only commercial maglev high-speed train line in operation: The Shanghai Maglev Train, a turnkey Transrapid maglev demonstration line 30.5 km long. The trains have a top operational speed of 430 km/h and can reach a top non-commercial speed of 501 km/h. It opened for operations in March 2004, and transports passengers between Shanghai's Longyang Road Metro Station and Shanghai Pudong International Airport. There have been numerous attempts to extend the line without success. A Shanghai-Hangzhou maglev line was also initially discussed but later shelved in favour of conventional high-speed rail.