LZB, ERTMS and CDI 113 + 200: one week deciphering the 17 minutes of the Urda accident
Eight days after the tragedy, the keys to what happened are in the complete audio recordings from the Atocha control center, the data from their screens, and the questioning of around twenty people.
On October 28, a worker at Adif's control centre in Atocha, Madrid, began their shift at 6:30am. Over two hours later, the LZB safety system failed on a 63km stretch of the high-speed line between Madrid and Sevilla, causing seven trains to halt. The worker ordered the AVE 2080 to resume normal speed despite protocol requiring a slower speed, and 17 minutes later it collided with a stationary Iryo train near Urda, Toledo, resulting in at least 69 deaths and hundreds of injuries.
Written by urgent.news from El Pais's report — not a translation of it. Machine-written — may contain errors; check the original before relying on it.
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