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.
Shanghai–Hangzhou maglev line
If built, the line would become the first inter-city maglev rail line in commercial service in the world and also the fastest inter-city train. The line would be an extension of the only maglev line in China (and the only commercial service high-speed maglev line in the world) so far, the Shanghai maglev train at Pudong International Airport.