Important? Or a technical loose end? Does the distinction between a 200m and a 202m long train matter to the future of the Channel Tunnel? I have tried to work it out... https://jonworth.eu/all-about-2-metres-the-importance-of-the-difference-between-a-200m-and-a-202m-train-is-scarcely-plausible/ #CrossChannelRail
For stations I would already intuitively have said an additional few m length wouldn't matter much, unless doors come to rest past the end of a platform. Which I guess are always far away from having 400m between the outermost doors.