Finland announces migration of its rail network to international gauge

I wonder if there will be measures for backwards compatibility in the transition period. Like having dual track widths.

There's only 89mm difference between the two widths - I'd guess that isn't enough room to have both on the same track.

This is how it looks (Galati, Romania):

https://greatnews.ro/wp-content/uploads/2022/07/linia-ferata...

The only feasible way to do this (based on preliminary reports) is to simply build new track next to old track in the same right-of-way. The transition period would last decades.

I can only imagine what the switches look like.

I very much doubt it. Change to dual-gauge requires replacing the sleepers, and if they do the very hard work of replacing the sleepers, then why keep broad gauge?

Maybe they would choose to downgrade a single track where there's two, and half of each station's lines, but that would make it very difficult to schedule trains in both directions on a single track. So, they're probably not going to do that either.

I believe something like this: https://www.reddit.com/media?url=https%3A%2F%2Fi.redd.it%2F8...

There's already some dual-gauge track on the border with Sweden in Haparanda/Tornio[1].

[1]: https://maps.app.goo.gl/qjRZTz3K9sbVYpDX6