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.
List of maglev train proposals
Talks with Germany and Transrapid Konsortium about the details of the construction contracts took place. While the Chinese Minister of Transportation was quoted by several Chinese and Western newspapers in 2006 as saying the line was approved, a February 27, 2009 People's Daily Online article indicates that the Shanghai municipal government is considering building the line underground to allay the public's fear of electromagnetic pollution, and that any final decision has to be approved by the National Development and Reform Commission. There are no current plans to extend the line.