251–260 of 293 posts
Earlier quoted context omitted.
The first image looks like sabotage to me. Continuous welded rail sections are much longer than this gap.
Wouldn't the gap simply be the result of loss of tension after the weld broke? Metal expands in the heat (about 1cm per degree C per km). Weather shows it got down to around 0C in Córdoba last night while the summer record is around 47C so one would expect a fairly large gap once tension is released.
Earlier quoted context omitted.
The first image looks like sabotage to me. Continuous welded rail sections are much longer than this gap.
Wouldn't the gap simply be the result of loss of tension after the weld broke? Metal expands in the heat (about 1cm per degree C per km). Weather shows it got down to around 0C in Córdoba last night while the summer record is around 47C so one would expect a fairly large gap once tension is released.
What we know so far: 1. The last 3 cars from the Iryo train (Frecciarossa 1000) derailed for unknown reasons. It's a straight line, so this is extremely rare. 2. The Renfe train (Alvia) didn't have time to break and hit the derailed trains from Iryo, the two first cars derail as a consequence of the impact. 3. The Iryo train(Frecciarossa 1000), that caused the accident, was manufactured in 2022 and it passed a techni…
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Earlier quoted context omitted.
The collision was due to one train derailing first, if that was due to the track (as mentioned in andy12_'s toplevel comment) then listening to warnings could perhaps have avoided the accident.
Could have, though both trains were going slower than what the mechanic union asked for. Either or wasn't a factor, or the conditions were even worse than all parties believed.
Earlier quoted context omitted.
>Our "high speed" rail is a joke Do you need high speed rail at all? There are not many points in the country that are more than 1 hour away with regular speed trains.
Taking a train to the nearest (usable) airport within the Netherlands takes between 2 and 2.5 hours depending on the available trains, amount of transfers, and "high-speed" (not actually) rail surcharge. Actually, because of a train hitting someone, I currently can't reach any airport by train because my city is right at the edge of the train network. Groningen-Schiphol is similar, and Maastricht-Schiphol is 2,5 hour…
The major cities (Amsterdam, Rotterdam, Utrecht, Den Haag) typically have 4 trains/hour going between them. Higher-speed trains won't make any difference there, unless you first build out dedicated infrastructure (like the IC Direct line between Schiphol and Rotterdam, which cuts a whopping 20 mins from the regular IC travel time).
Earlier quoted context omitted.
In point number 3, you state that one of the trains caused the accident, whereas the cause of the accident is not yet known and could be for example an issue in the rails themselves.
Yes, that was not accurate and you're correct, it's still not clear what caused the first train to derail to begin with. The way I looked at it is that the first train derailing wasn't a big issue, I don't think it caused any injuries. What was really catastrophic was the impact with the second train.
https://www.abc.es/espana/andalucia/cordoba/via-l10717-salto...
Earlier quoted context omitted.
Could have, though both trains were going slower than what the mechanic union asked for. Either or wasn't a factor, or the conditions were even worse than all parties believed.
Some have mentioned that the tracks were installed during may 2025, it's also the first winter so track issues and then thermal contraction could've cause too much strain.
Earlier quoted context omitted.
The first image looks like sabotage to me. Continuous welded rail sections are much longer than this gap.
Wouldn't the gap simply be the result of loss of tension after the weld broke? Metal expands in the heat (about 1cm per degree C per km). Weather shows it got down to around 0C in Córdoba last night while the summer record is around 47C so one would expect a fairly large gap once tension is released.
Thus things like these are integrated:
Earlier quoted context omitted.
> defects in laying the tracks didn't have a chance to show up until now. Defects in laying the tracks have a chance to show up on an inspection, either the final one when building or one done at the regular intervals. If it doesn't shows up, your inspection is bad. If you can't inspect what you build, you can't build it.
all in-laws experts in recession or vulcanology or bitcoin has turned to civil engineering experts.
Also modern high speed rails are built with continious welding without thermal expansion joints.
https://www.youtube.com/watch?v=zqmOSMAtadc goes through track building and the effects and literally mentions at about 12:30 that they do need to do inspections when it gets cold if the track cracks (there was a photo linked in another post about a cracked track).
Is it the cause? No idea but doesn't feel far fetched.
Edit: Seems official investigators are now even pointing to that as an initial theory, https://www.reuters.com/world/europe/investigators-find-brok...