Always try to sit in seats where your back is toward the direction of motion.
This is so rare that it's not really worth thinking about, as a passenger (of course, it should be on the _operators_ minds). You're far more likely to die getting to the station.
I feel like airplanes should be designed this way. Outside of takeoff and landing it would be pretty hard to even notice the difference, once you're seated.
Huh. I'd never thought of this. If that is actually meaningfully beneficial, I wonder if they'd design self driving cars with the seats facing backwards, given there's no longer a necessity to look at the road.
(edit: I guess it's more of no-brainer on a train/bus where you don't have a seat belt)
Train crashes like this are _so_ rare. It's not as safe as flying but AFAICT in rich countries it's the same rough order of magnitude in terms of danger level.
I don't have data but I would imagine crashes on these high speed lines (which always seem to be run at a higher level of professionalism than the general networks) are rarest of all.
I don't think it's a good use of mental energy to plan for a crash like this. You're better off using your brain cycles on hygiene or not losing your luggage.