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Finland announces migration of its rail network to international gauge

yle.fi

21–30 of 465 posts

Re: Finland announces migration of its rail network to international gauge

#21
post #3

> will cost billions of euros, affect more than 9,200 km of track, and take decades How is a change like this going to be implemented? E.g. are they going to mainly update some tracks everywhere (and have two systems running in parallel), or all tracks in selected areas (and have passengers change), or something else? Was there a comparable large scale rail infrastructure change in some other country?

[deleted]

Re: Finland announces migration of its rail network to international gauge

#22
post #3

> will cost billions of euros, affect more than 9,200 km of track, and take decades How is a change like this going to be implemented? E.g. are they going to mainly update some tracks everywhere (and have two systems running in parallel), or all tracks in selected areas (and have passengers change), or something else? Was there a comparable large scale rail infrastructure change in some other country?

I think you can ”upgrade” the tracks to use three rails so you can handle both track widths. Also there are trains with adjustabe axle widths.

Not possible here because the widths are too close together to install a third rail.

Re: Finland announces migration of its rail network to international gauge

#23
post #3

> will cost billions of euros, affect more than 9,200 km of track, and take decades How is a change like this going to be implemented? E.g. are they going to mainly update some tracks everywhere (and have two systems running in parallel), or all tracks in selected areas (and have passengers change), or something else? Was there a comparable large scale rail infrastructure change in some other country?

I think you can ”upgrade” the tracks to use three rails so you can handle both track widths. Also there are trains with adjustabe axle widths.

You’d need four rails, a 9 cm separation isn’t enough to fit two side by side. This solution has been ruled out as technically infeasible (I don’t even want to think about what the switches would look like…)

Adjustable-gauge rolling stock has also been ruled out as incompatible with the Finnish climate.

The most (only?) feasible way to do it is to “simply” build entirely new standard-gauge track next to existing track (and then possibly start upgrading the latter too at some point in the future).

Re: Finland announces migration of its rail network to international gauge

#24
post #3

> will cost billions of euros, affect more than 9,200 km of track, and take decades How is a change like this going to be implemented? E.g. are they going to mainly update some tracks everywhere (and have two systems running in parallel), or all tracks in selected areas (and have passengers change), or something else? Was there a comparable large scale rail infrastructure change in some other country?

I think you can ”upgrade” the tracks to use three rails so you can handle both track widths. Also there are trains with adjustabe axle widths.

Wikipedia says 1435 and 1524 are too close for triple rail, you have to do quadruple.

Re: Finland announces migration of its rail network to international gauge

#25
post #3

> will cost billions of euros, affect more than 9,200 km of track, and take decades How is a change like this going to be implemented? E.g. are they going to mainly update some tracks everywhere (and have two systems running in parallel), or all tracks in selected areas (and have passengers change), or something else? Was there a comparable large scale rail infrastructure change in some other country?

> Was there a comparable large scale rail infrastructure change in some other country? Baltic states attempted this (project Rail Baltica). Lots of EU money were spent with no visible result. I guess, several people in Baltic states became super rich, but in terms of rail infrastructure nothing was done.

Progress has been made and is ongoing.

https://en.wikipedia.org/wiki/Rail_Baltica#Project_progress

Re: Finland announces migration of its rail network to international gauge

#27

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...

Re: Finland announces migration of its rail network to international gauge

#28

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

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.

Re: Finland announces migration of its rail network to international gauge

#29
Note that the proposal for this came from the EU Commission over the last few years - the Trans-European Transport Network (TEN-T). Initially Finland pushed back on it as being too expensive.

https://transport.ec.europa.eu/transport-themes/infrastructu...

Re: Finland announces migration of its rail network to international gauge

#30
post #6

Just note Finland uses the Tsarist Russian 1524 mm gauge. Not the Allied Soviet 1520 mm gauge.

Interesting. In practice they seem compatible? There were frequent trains running between Helsinki and Saint Petersburg, I remember taking it and there was a seamless transition across the border.
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