Simon F said:
I would guess that the next step would be to put the whole train in a 'tunnel' where the atmosphere has been reduced to a near vacuum. They should then be able to outperform aircraft. (Mind you, they might have to put the maglev on the ceiling if it gets really fast!)
Definately. As you say, the possibility of putting the train in near vacuum would allow for very high speeds to be reached. Pollution would also be a fraction of that of aircraft.
The engineering costs would be vast though. Just imagine the channel tunnel x 50. Could well be some consumer reluctance as well. Not too sure how people would react to being stuck in a tunnel under the Atlantic Ocean for any great length of time.