Mag-lev carriage
From Memory Alpha, the free Star Trek reference
A mag-lev carriage is a type of vehicle used to carry passengers and cargo along an orbital tether. It uses magnetic levitation to propel itself into orbit.
In 2373, Tuvok, Neelix, and several Nezu used a mag-lev carriage to rise above the ionosphere of a Nezu colony planet under surreptitious attack by the Etanians, so as to contact USS Voyager for rescue. (VOY: "Rise")
