Every time I have a great idea to take a train, almost anywhere, I find myself in the middle of the plot of Atlas Shrugged, where Dagny Taggart see the whole railway system break under her hands and she can't do shit about it, because the whole supply chain is completely broken, due to disruption of price signals.
And notice, that's usually how economy works anyway. Too fragile. Yes, central planning is hard. And by hard I mean impossible. But even the smallest urge to plan some part will send the glitch down the supply chain and completely break pricing. The market adapts of course, but it might price you out in the process.
Instead of high speed trains, we have socialism. And that's why I won't make it to the sauna tonight.