I got caught in probably the 2nd worst traffic driving to/from my parents (70mi away) this weekend I've had in 20 years. And yet it was still about 30min faster, each way, than if I took Metro North.
But I'd also love if we could go faster than 50mph. TGV in France, which launched 41 years ago, travel between 167mph and 198mph [1].
The LIRR Today has a great article, that I cannot for the life of me find, where the author used train speed data between stations to figure out what speed "most trains" accomplished (so accounting for curves, station stops, etc.) and redid the schedules according to that data. Without padding, everyone that uses the LIRR would save hours a week in commuting.
Incidentally, the LIRR has been moving away from higher train speeds and better connections to reduce travel time in favor of arriving at terminals within 6 minutes of the scheduled time. Schedule padding, replacing 80mph switches with 60mph switches (for the Elmont work), and removing all scheduled connections at Jamaica. I think it's crazy and I'm glad I don't commute to the city from Long Island. The connections at Jamaica disappearing is the most sad to me; that station has a really unique setup where 3 trains arrive at once, and you can transfer through the middle train to get to the other two destinations. It used to work like clockwork, but obviously if the middle train is late, the OTP for 3 trains decreases. Since that's the metric they care about, and not "can I get from any city terminal to any destination easily", that's what gets optimized out. I don't think it's good. It's nice if the trains run on time, but I'd rather be 20 minutes late once a week than spend an extra 5 hours on the train every week. But, not what the agency values.
They already own most of the necessary land anyway: https://www.blm.gov/sites/default/files/docs/2023-07/BLM-Adm...
think your train is efficient? a plane can fly in a straight line between any two points in the US! beat that! ever see a train cross one of the great lakes? no challenge for a plane! rerouting a rail line can cost billions...but only a tiny bit of fuel to reroute a plane...not to mention I can go coast to coast in five hours on a plane but the world's fastest train would take much longer...
High speed rail wouldn’t be all that competitive for going coast to coast in the US, definitely.