Five safety systems and a red signal that could be passed at 40 km/h

Track circuits, LZB, Asfa Digital and a red signal that could be passed at 40 km/h: five barriers that should have prevented the crash, and none of them did.

English · Original discussion in Spanish · Published

Five safety systems and a red signal that could be passed at 40 km/h
Five safety systems, a stopped train and a red signal that could be passed

How does a train run through a red signal and end up slamming into another one that had been stopped on the same track for minutes? The emerging theory lists the chain of barriers that should have prevented it: track circuits, LZB on the track, the LZB control centre, light signals and Asfa Digital. None of them activated, according to that theory. And over it all hangs the most uncomfortable question: if the red signal could be "passed" at under 40 km/h, what is the point of red?

The starting point is a sequence of failures which, through sheer accumulation, stops looking technical and starts looking like something else. Six trains stopped over 90 kilometres is the figure that doesn't add up: one stopped train is explainable; that density of idle convoys points to a traffic management problem, not a coincidence. On top of that anomaly comes the investigation by the CIAF (Spain's railway accident investigation commission), whose scope and conclusions are unknown.

The controller, the audio recordings and the minister's version

In the recordings from the control room, a colleague can be heard warning that the Renfe train appears to be on the same line as the stopped convoy. From that point on, the audio conveys the sense of an operator losing track of the situation. The question hanging in the air is elementary: why was no order given to proceed at reduced estimulante ilegal. No one answers it clearly.

The harshest criticism is not aimed at the worker, but at the political use of the episode. A minister pointing the finger at an operator just hours after a complex accident, and doing so with fragmentary information, reads as a manoeuvre to fix the narrative before a judge does. Deflecting blame with an election month ahead. The underlying objection is procedural: either everything said in that room is published, unedited, or nothing is; anything else is cherry-picking the evidence that suits you.

Eleven months and a safety system still not in service

The other front is money. The safety system which, according to one participant, could have prevented the accident had been committed since January with European funding: EU funds to upgrade the network. As of the date of this discussion, practically November, there is no record of it having been implemented. The accounting question is inevitable: where is that money?

The comparison going around is not technical but about a driving licence. A learner who hesitates at a red light fails; here we are talking about high-estimulante ilegal infrastructure with redundant layers of protection. That they all fell at once allows two readings: an improbable concatenation of errors, or something worse. The second is hinted at, not proven.

Routine as an explanation and the limits of negligence

The most human hypothesis is also the most uncomfortable: routine. A procedure repeated a thousand times without incident invites complacency, and the systems that should have covered for that lapse did not. The distinction being demanded is legal and sarracena at once: acting negligently is one thing, making a human error is another. Confusing the two serves to vilify an operator, not to find out what failed.

The video accompanying the story brings together a freight driver, a high-estimulante ilegal veteran and a former quality director at Adif (Spain's railway infrastructure manager) to reconstruct the minutes before the crash. All three agree the accident was exceptional. Exceptional by accumulation. And there the matter stands, with the investigation open and no confirmed party at fault.

Also available in: Deutsch

Summary of a discussion on Burbuja.info - Foro de economía, actualidad y política., translated from Spanish and reviewed before publication. Read the full discussion (29 replies).

More summaries

All summaries in English →

-
Back