Around 8:54 AM on October 28, a severe collision occurred on the high-speed railway line connecting Madrid to the autonomous region of southern Andalusia in Spain. A Renfe national train collided at high speed with an Iryo private railway company train that was parked on the track. Numerous carriages fell down the slope and were severely shattered, killing at least 69 people and leaving about 50 hospitalized. 22 minutes before the incident, a computer of the Continuous Train Control System (LZB) crashed in the Olmedo section, causing the loss of the main system's protection along a 63-kilometer section. The dispatcher at the Madrid Atocha Control Center (CRC Atocha) is suspected of mistakenly instructing the rear train to ignore signals and travel at normal speed while the track ahead was still occupied, leading to the collision. Spanish Transport Minister Oscar Puente bluntly stated that the decision of the traffic control center is "incomprehensible" and is the main cause of the entire accident. This is the second major accident on the high-speed rail corridor within nine months. In January of this year, a collision occurred on the same line due to a broken rail and a signal failure to automatically sound the alarm, claiming 46 lives. Before the publication of the final investigation report on the accident earlier this year, another major casualty event occurred on the same track. Spain has the largest high-speed rail network in Europe. The successive fatal accidents have exposed systemic crises in infrastructure maintenance, signal stability, and dispatch and protection procedures. Click the link to read the full text

Around 8:54 AM on October 28, a severe collision occurred on the high-speed railway line connecting Madrid to the autonomous region of southern Andalusia in Spain. A Renfe national train collided at high speed with an Iryo private railway company train that was parked on the track. Numerous carriages fell down the slope and were severely shattered, killing at least 69 people and leaving about 50 hospitalized. 22 minutes before the incident, a computer of the Continuous Train Control System (LZB) crashed in the Olmedo section, causing the loss of the main system's protection along a 63-kilometer section. The dispatcher at the Madrid Atocha Control Center (CRC Atocha) is suspected of mistakenly instructing the rear train to ignore signals and travel at normal speed while the track ahead was still occupied, leading to the collision. Spanish Transport Minister Oscar Puente bluntly stated that the decision of the traffic control center is "incomprehensible" and is the main cause of the entire accident. This is the second major accident on the high-speed rail corridor within nine months. In January of this year, a collision occurred on the same line due to a broken rail and a signal failure to automatically sound the alarm, claiming 46 lives. Before the publication of the final investigation report on the accident earlier this year, another major casualty event occurred on the same track. Spain has the largest high-speed rail network in Europe. The successive fatal accidents have exposed systemic crises in infrastructure maintenance, signal stability, and dispatch and protection procedures. Click the link to read the full text