BARCELONA, Spain (AP) — Was Spain’s second major train collision this year caused by human error or failures in its once touted high-speed rail network?
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collision → cause → network
It depends on whom you ask.
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you → depend → whom
Spain’s transport minister was quick to lay most of the blame a traffic controller’s poor judgment for Wednesday’s collision in Toledo province, which killed 69 people.
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which → lay → people
But railway unions are pushing back.
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unions → push → ?
They point instead to what they describe as deteriorated working conditions — fewer traffic controllers with more work than ever — that have made it increasingly difficult to ensure the safety of 45 million passengers annually.
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it → point → passengers
A judge and a special government commission are conducting separate investigations into the deadly crash, while Spanish Prime Minister Pedro Sánchez has pledged to get to the bottom of it.
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Sánchez → conduct → it
“This investigation must determine how and why this catastrophe happened,” Spain’s King Felipe VI said on Thursday after visiting injured passengers in a Toledo hospital.
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VI → determine → hospital
“We will have to take measures so this never happens again.”
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this → have → measures
The timeline of the catastrophe given by the government
The chain of events that ended in disaster started at 8:30 a.m. on Wednesday, when the communication system key to the functioning of the line’s security system went down.
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that → give → system
The system, called LZB, monitors the position of trains and can even trigger the automatic braking of a train to prevent a collision.
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system → call → collision
That malfunction meant that human controllers based at a control post in Madrid took over full responsibility for monitoring the positions and safety of the trains on a stretch of 63 kilometers (39 miles) between Madrid and Seville.
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controllers → mean → Madrid
At that time authorities believe there were six trains on the affected stretch of track.
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authorities → believe → track
At 8:36, a controller told one train, belonging to the state-owned RENFE company, that it could start running again at normal speed.
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it → tell → speed
The other train, operated by privately owned IRYO, located 15.5 miles (25 kilometers) down the line, also tried to restart, but the engineer was unable to override the automatic stop and informed the controller.
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engineer → operate → controller
At 8:53 the collision occurred, derailing carriages and shredding parts of the trains to bits.
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collision → occur → bits
In January, over two hours further south, one train jumped the track and hit another train going the other direction, killing 46 people.
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train → jump → people
What the minister says
Transport Minister Óscar Puente, who is under pressure to resign, called the controller’s decision to let one train restart at full speed while the other remained still “inexplicable” and “erroneous.”
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other → say → speed
Puente said that the RENFE train should never have been told to start moving again since there was still a stop signal active on that line.
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train → say → line
“An order is given for the train to restart, an erroneous decision,” Puente told reporters.
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Puente → give → reporters
The decision “was taken in inexplicable circumstances given that a train was stopped and with a red light,” he said.
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he → take → light
What the unions say
Unions, however, argue that the context matters.
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context → say → What
Raquel Ayllón, spokesperson for SCF, Spain’s railway traffic controllers union, told The Associated Press that the workload is regularly too much for the current staff to safely handle.
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staff → tell → Press
She said that traffic controllers have been asking for more personnel for years, while the safety systems keep failing.
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systems → say → years
“We believe (the minister) is blaming a mere worker who was working under increasingly poor conditions,” she said.
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she → believe → conditions
What is incomprehensible is that the safety system is regularly failing.”
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system → fail → ?
Spain’s union for train engineers, SEMAF, said that this was not the first time the three-decade-old LZB security system, which is still in use on the Madrid-Seville line while being phased out, has gone offline and left human operators to fend for themselves.
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which → say → themselves
“The LZB system should have been replaced some time ago,” said Diego Martín, spokesperson of the SEMAF union of Spain’s train engineers.
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Martín → replace → engineers
“It failed us yesterday (Wednesday) and it has gone offline on repeated occasions in the past.”
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it → fail → past
Train workers went on strike Thursday in a previously planned action to demand the government fulfill its commitments to improve safety conditions after the January crash.
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government → go → crash
Representatives from several unions also criticized what they called the “irresponsible” leak of audio clips of conversations between the control room and the train engineers to Spanish media.
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they → criticize → media
Could privatization have overloaded the rail system?
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privatization → overload → system
Spain’s railways only serviced state-owned trains until it opened its high-speed rail to private operators in 2021.
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it → service → 2021
Both of this year’s collisions involved a train operated by RENFE and one operated by IRYO.
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Both → involve → IRYO
Rail traffic increased after the market was opened to competition.
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market → increase → competition
Between Madrid and Barcelona, for instance, the average number of daily trips increased from 56 to 89 between 2019 and 2024, according to the SCF union.
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number → increase → union
A spokesperson for Spain’s train workers’ union, Joan Rodríguez, said increased traffic brought by privatization has put extra strain on railways.
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traffic → say → railways
“We are not convinced that the liberalization of the high-speed passenger rail service was matched by the necessary upkeep of the lines,” Rodríguez told TVE on Wednesday.
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Rodríguez → convince → Wednesday
“I am not saying it was a determining factor (in the crashes), but yes, the increase in use of the network is a factor to keep in mind.”
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increase → say → mind
The Aporia
