There was a project proposed in Switzerland about a vacuum metro a couple of years ago. It never made it out of the concept phase because of the costs. The goal

There was a project proposed in Switzerland about a vacuum metro a couple of years ago. It never made it out of the concept phase because of the costs. The goal was to make a city to city connection with a speed of 800km/h. The project website contains techical details too: http://www.swissmetro.ch/en http://www.swissmetro.ch/en