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 maglev train
The line runs from Longyang Road station in Pudong to Pudong International Airport; The Pudong International Airport station provides a transfer to Line 2, but the Longyang Road station provides access to Line 2, Line 7 and Line 16. At full speed, the journey takes 7 minutes and 20 seconds to complete the distance of , although some trains in the early morning and late afternoon take about 50 seconds longer. A train can reach in 2 minutes, with the maximum normal operation speed of reached thereafter.