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Experts Point Out that the Three Security Systems of the Madrid-Sevilla Line Failed Before the Accident.

The causes of this failure of the three security systems (LZB, BCA and ASFA-AV) are being investigated and could be related to the modernization works being carried out since 2021 on this line, the last hour of the train accident in

18 Articles

Center

Dozens of travellers are waiting at information stations in Atocha. Many denounce the lack of travel alternatives and railway misinformation.

·Madrid, Spain
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Diario de CádizDiario de Cádiz
+9 Reposted by 9 other sources
Center

The causes of this failure of the three security systems (LZB, BCA and ASFA-AV) are being investigated and could be related to the modernization works being carried out since 2021 on this line, the last hour of the train accident in

Lean Right

The LZB is designed to automatically brake trains in case of collision hazard

·Madrid, Spain
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Lean Right

The second high-speed railway tragedy in Spain in just ten months has put on the table the doubts that arise around one of the most theoretically monitored infrastructures, but that has revealed again the failures of a security system with little chance of failure. Pending research on the scope between a AVE and an Iryo in Los Yébenes (Toledo), in which at least 50 people have died, these tracks are prepared with several security systems that ar…

·Madrid, Spain
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Right

Impacts by range are almost impossible, but can occur if the system enters "degraded mode"

·Madrid, Spain
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The possible causes of this accident are gradually being clarified, which, for the moment, leaves nearly 30 dead - a figure that will very possibly increase in the coming hours - and a still unknown number of victims. Everything points, according to the first indications, to human error as the cause of the accident.

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El Debate broke the news in Madrid, Spain on Wednesday, October 28, 2026.
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