[jokteur]

Exactly the same thing with trains. I live in Switzerland, and they are adapting the capacity of the trains route by route, and to the time of the day.

The train I take every day to work has 12 cars in rush hour, and 4 cars off-peak, sometime 6 cars in the middle of the day, or 10 cars just after rush hour. They put extra trains in rush hour, have trains in standby is case of a breakdown of other trains, and they even introduce special trains dedicated for events (football games, big concerts, sports event). How is this "not flexible" ?

The only valid point is that the US forgot how to efficiently build huge infrastructure projects. But it is not an impossible thing to solve. Sent some experts to France, Spain and ask them how to manage high-speed project within reasonable costs. France is building the Grand Paris Express (a lot of tunneling, more than 200km of tracks) for a reasonable cost, and is now reusing tunnel boring machines to build another project in Toulouse.

[int_19h]

It's not a technical issue with the costs in US; it's a political issue. On one hand, any construction project gets mired in massive amounts of red tape even when things go well. And then you have all the people who see public transit and similar projects as a threat to their neighborhood's "character" (i.e. who gets to live there), and who have mastered the art of using said red tape for their advantage.