>>2007699The Shinkansen was built before the TGV, so they ran into this oscillation problem at what point?
If the story in the OP is true, I'm pretty sure the French engineers made the spacing uneven on purpose.
The French may have tried even post spacing like on the Shinkansen, but they ran into the oscillation issue after a certain speed threshold.
When the Japanese engineers decided to increase the Shinkansen's speed, they also ran into the oscillation problem and found out how the TGV got around the issue.
