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.
SCMaglev
Japanese National Railways (JNR) began research on a linear propulsion railway system in 1962 with the goal of developing a train that could travel between Tokyo and Osaka in one hour. Shortly after Brookhaven National Laboratory patented superconducting magnetic levitation technology in the United States in 1969, JNR announced development of the its own superconducting maglev (SCMaglev) system. The railway made its first successful SCMaglev run on a short track at its Railway Technical Research Institute in 1972.