¿Qué causó el accidente? La secuencia paso a paso de una cadena de fallos que el sistema no detuvo

The Urda train accident, resulting in at least 69 deaths, was caused by a series of failures in the signaling system and communication errors. The LZB system, which regulates train movements, failed, leading to a dangerous situation where two trains were on the same track. The AVE train received incorrect orders to proceed at normal speed despite being warned of an occupied track. The Iryo train, which was stopped, could not restart due to a malfunction, leaving it vulnerable to the approaching AVE. The investigation highlights a lack of safety barriers and redundancy in the system, raising questions about the reliability of the signaling technology and the decision-making process at the control center.