I would say very rarely would showing up 30-45 minutes before a domestic flight work. Maybe in some airports with pre-check and if you start the clock once you walk into the terminal, but that's just not a realistic time frame.
Further, the level comfort of the high-speed rail I rode on in China is not even remotely approached by any plane I have ever been on, and it was several times cheaper. There's also no difference between bringing a big suitcase or a small one versus checking or carrying on bags for a plane.
In many cities, the airport is in a terrible location. Boston, Denver, NYC, and many others have poor locations. Train stations, such as those in Boston and NYC, dump you right into the thick of the city. A high-speed rail train would be as fast as a plane's gate to gate time but basically platform to platform. A train is going to be much more efficient on emissions as well.
It's a little confusing why anyone would prefer a plane ride over high-speed rail for regional travel.
Further, the level comfort of the high-speed rail I rode on in China is not even remotely approached by any plane I have ever been on, and it was several times cheaper. There's also no difference between bringing a big suitcase or a small one versus checking or carrying on bags for a plane.
In many cities, the airport is in a terrible location. Boston, Denver, NYC, and many others have poor locations. Train stations, such as those in Boston and NYC, dump you right into the thick of the city. A high-speed rail train would be as fast as a plane's gate to gate time but basically platform to platform. A train is going to be much more efficient on emissions as well.
It's a little confusing why anyone would prefer a plane ride over high-speed rail for regional travel.