Not sure how much the shared bogies between two cars on the TGV vs the standard bogies but semi coupled on the Acela have an affect. Plus there is also the crappy NEC tracks vs the dedicated LGVs. You know when your on HSR vs upgraded shared standard rail.TGV commercial top speed these days is 200mph/320kph on all the new LGVs. The older ones are slowly getting upgraded from 300kph/186mph to 320kph/200mph.
In general TGVs even at top speed are way smoother than Acelas are even at 125mph. I have never figured out why, but that is the way it is.
In three weeks I am going to be riding a lot of ICE. I have two solid days of ICE riding in my plans, in addition to bit of a random excursion into Poland one day from Berlin. I will of course report back from that upon return.
Enter your email address to join: