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Re:Night train connecting Amsterdam to Scandinavian capitals... by perfunctory on Sunday January 26, 2020 @05:25PM (#22155229)
Stupidly enough the width of the railway track is not the same in all European countries. Notably, relevant for the article, it's different in Finland. But also in Ireland, Portugal and Spain.

https://en.wikipedia.org/wiki/Track_gauge_in_Europe

Re:Night train connecting Amsterdam to Scandinavian capitals... by jcranmer on Sunday January 26, 2020 @05:35PM (#22155312)
All of the HSR systems in Europe have standardized on 1435mm. (The highest-speed line in Finland is the 220km/h link between Helsinki and Laht, which is on the slowest end of high speed rail).

The integration of the Baltic states into the European HSR system, Rail Baltica, including the Helsinki/Tallinn tunnel, are planned to be 1435mm.

Re:Night train connecting Amsterdam to Scandinavian capitals... by Arnt on Tuesday January 28, 2020 @03:28AM (#22167526)
Has that tunnel moved beyond the "wild dream" stage?

https://www.dezeen.com/2019/11/21/zaha-hadid-architects-ulem... BTW. I'm definitely going to go there, by train, the year Rail Baltica is finished.

Re:Night train connecting Amsterdam to Scandinavian capitals... by rexpress on Monday January 27, 2020 @01:07AM (#22157169)
Variable gauge trains help overcome this problem:

https://en.m.wikipedia.org/wiki/Variable_gauge

I once took a night train from Barcelona to Paris that changed gauge at the border. It slowed to a walking pace and travelled through a shed like structure that housed the equipment. There was some mild clunking and clanging from underneath as we slid over the mechanism. Quite impressive.