There have been several Personal Rapid Transit [1] systems proposed with this sort of technology, e.g.: http://zapatopi.net/inteli-tube/ http://zapatopi.net/int

There have been several Personal Rapid Transit [1] systems proposed with this sort of technology, e.g.: http://zapatopi.net/inteli-tube/ http://zapatopi.net/inteli-tube/ [1] https://en.wikipedia.org/wiki/Personal_Rapid_Transit https://en.wikipedia.org/wiki/Personal_Rapid_Transit