Reply #59: It has been done before in Europe

[muriel_volestrangler]

though, looking around the web, I can't find current examples of using it for long distance travel, which it used to be - just short distance tunnels, like Swiss mountain tunnels, or the Channel Tunnel.

Easier to do is provide trains with a decent amount of room for bikes - the train does the high speed, long distance bit, while you, on your bike, do the short, personalised route you need at either end.