I agree with this - max speed around 120mph looks like the sweet spot in terms of ROI. I see HSTs as more of a vanity project these days - lots of them run unde

I agree with this - max speed around 120mph looks like the sweet spot in terms of ROI. I see HSTs as more of a vanity project these days - lots of them run under capacity and are even worse on paying back the money invested into them than standard rail. I love HSTs, and have been on Eurostar, Thales, ICE, AVE. But in many circumstances - and obviously it's down to the particular geographical situation, and many other factors - HSTs are not the optimal solution.