Largin: Let me help you with how train travel works.
First: Trains do not travel on straight, level ground. Take a look at the terrain between Denver and New York. It’s not exactly flat, and trains do very poorly on 2% and 3% grades.
Second: The run from Denver to New York is not an Express. The train will make multiple stops, all adding to the time.
Third: Switching trains. You don’t think you’ll stay on the same train the entire distance? Like plane travel long distances sometimes means layovers.
Forth: Priority. In the US nearly all, if not all, the rail is owned by the freight train companies. Which means the passenger train has a lower priority than any freight train on the line. Which means times when the passenger train sits on a side track or spur to allow a freight train to go by.
Speak up if you need more help figuring out why it takes so long.
Add them up, and 90 hours makes more sense.
