Mexico Metropolis’s metro has been affected by issues.

The subway system in Mexico Metropolis, the nation’s sprawling capital, handles greater than 4 million passengers a day and is the second-largest within the Americas, after New York Metropolis’s. And when it was inaugurated in 1969, adorned with Aztec artifacts and Maya-style friezes, it was the satisfaction of a nation.

However lately it has turn out to be a logo of city decay.

There was concern over the integrity of the elevated tracks and help columns on the stretch of tracks the place Monday’s accident occurred after a strong earthquake hit Mexico in September 2017.

The elevated infrastructure on the subway line — often known as Line 12, or the Golden Line — was broken, El Common newspaper reported.

Later that month, some native residents advised El Common that they feared that the broken line would possibly collapse. The newspaper reported on the time {that a} column between the Olivos and Nopalera stations had suffered structural harm. It additionally reported that engineers have been to conduct an ultrasound survey of the reinforcing metal in 300 columns alongside Line 12’s elevated portion.

It was not instantly clear what work had been executed to deal with the security issues. However there was a broad decline of the system lately.

The Golden Line opened in 2012 and is the most recent within the system. But from the outset, it has been beset by issues.

Trains operating over elevated elements of the observe needed to decelerate for worry they could derail. And simply 17 months after the $2 billion line was inaugurated, town suspended service on a big a part of it.

Service was later restored, however issues concerning the system as a complete have grown.

Final month, one of many capital’s 12 subway traces shut down after a observe hearth. And in January, a fireplace ripped by means of the metro’s downtown headquarters, killing a police officer and sending 30 others to hospitals with smoke inhalation. Six subway traces have been briefly knocked offline.

Opposition events blamed a scarcity of upkeep for the inferno, and the conservative Nationwide Motion Get together filed a felony criticism towards Mayor Claudia Sheinbaum and the top of the Mexico Metropolis subway.

In March 2020, one individual was killed and not less than 41 others have been injured when two subway trains collided. Ms. Sheinbaum mentioned on the time that one of many trains had apparently backed into the opposite. Video of the wreckage confirmed that the drive of the collision had left one of many trains caught on prime of the opposite, in response to Reuters.

The subsequent month on the Misterios station, a railway coupler — a mechanism used for becoming a member of prepare automobiles — fractured en path to its vacation spot. Though that incident resulted in no deaths, staff requested for extra security measures, El Common reported.

The latest critical accident occurred in 2015, when a collision between two trains left 12 folks lifeless. In 1975, one other prepare collision on the Viaducto station killed 31 folks and left greater than 70 injured, in response to El Common.

After the 2015 accident, the German-based firm TÜV Rheinland was employed to look at the circumstances that may have prompted it and recommend enhancements to know-how. The corporate completed its work in 2017 and was not concerned in trying into the energy of present buildings, a spokesman mentioned.

“TÜV Rheinland supervised the event of enchancment measures to treatment technical issues in programs engineering,” mentioned the spokesman, Jörg Meyer. “Our actions at the moment weren’t associated to bridge infrastructure.”

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