5 ms·
I’d separate: - longitudinal, predictable acceleration, where you can safely tell people to stay in their seats and all will be fine, I’m quite confident most
by bertil 9y ago
I’d separate:
- longitudinal, predictable acceleration, where you can safely tell people to stay in their seats and all will be fine, I’m quite confident most humans would be comfortable with 1G horizontal that adds up to 1.5G diagonal: that’s basically a roller-coaster; it’s not too bad if you ease people into it, i.e. you minimise the jerk;
- lateral, predictable acceleration, like one would expect in turns: not familiar with train technology enough to know if you could adapt pendular train to MagLev, but it seems like a simple enough hack to increase comfort significantly;
- vibrations and turbulences: seem unlikely in a tube on rails, without a train coming in the opposite direction. Those definitely, customers don’t like.
- ZoFreX 9y agoLateral acceleration is much more annoying to deal with than longitudinal or vertical, even if it's constant. Perhaps they could tilt in bends to convert some of that lateral to vertical?
- dsfyu404ed 9y agoBanked corners are a thing. The problem is that when you have delays and vehicles operating at low speeds the track is still banked
- ZoFreX 9y agoHence tilting - high speed vehicles tilt, low speed vehicles don't, and everything works out ok.
- athenot 9y agoYes, and with no windows, there's zero correlation between acceleration and visual cues. That's a perfect recipe for motion sickness.
- delinka 9y agoOur local trains have cars that can lean a bit on their own. Bank the track a bit, lean the car as needed, the humans on board don't recognize a turn unless they're watching intently out the window.