I can't speak to the engineering side but I will share my general travel-sickness tips: First, there are quite a few different types of motion sickness foods a

I can't speak to the engineering side but I will share my general travel-sickness tips: First, there are quite a few different types of motion sickness foods and supplements. I get good results from ginger, like ginger snaps or this candy called gin-gins. I also tried a raspberry-flavored motion sickness aid and it worked great. Your local medical professionals or specifically audiologists or ENTs may be able to suggest some other good ideas here. Second, activities and locations within the vehicle seem to make a huge difference. I would try: Not looking down at anything if possible. It helps me to look generally toward the horizon, out a window. I would also divide my time between walking and sitting, and change facing directions frequently, paying attention to what's working and what's not. Third, I would take full advantage of debarking at all stops and even schedule a layover or two if possible. Fourth, sleep seems to help some people skip over the worst of the event. I would personally try a sleep supplement like melatonin. Finally, please do check with train travel professionals. Good luck and happy holidays, I hope it can be tolerable or even enjoyable for you.