With Amtrak, you just show up at the train station a few minutes before departure time.
I took Amtrak from Richmond VA (well, Ashland, VA) to NYC once precisely to avoid the song and dance with getting around NYC airports. I showed up a few minutes before departure at the Ashland station (saving a drive to Richmond), relaxed on the train for 5 hours, arrived in Penn Station, and then took a short walk to the Roosevelt Hotel where my business meeting was.
High-speed rail can have multiple trains per day. If you miss one, you get on the next one.
With Amtrak, you just show up at the train station a few minutes before departure time.
I took Amtrak from Richmond VA (well, Ashland, VA) to NYC once precisely to avoid the song and dance with getting around NYC airports. I showed up a few minutes before departure at the Ashland station (saving a drive to Richmond), relaxed on the train for 5 hours, arrived in Penn Station, and then took a short walk to the Roosevelt Hotel where my business meeting was.
High-speed rail can have multiple trains per day. If you miss one, you get on the next one.