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.
AVE
Currently, there are several series of high-speed trains that run the AVE service:
There are also other series of trains that are considered high-speed, but do not run under the AVE name. They run under the brand Alvia and Avant, and are variable gauge trains. They can run on high-speed lines at a maximum of , and can also change between standard- and Iberian-gauge lines without stopping. The trains that are operated under the Alvia and Avant brand are: