Why is Line B of the Mexico City Metro failing?

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Outages in the Metro Collective Transportation System (STC) affected users of Line B, which runs from Ciudad Azteca to Buenavista. Shortly before 2:00 p.m. on Wednesday, May 14, people were trapped inside the cars, and it took several minutes for them to be evacuated.

According to reports on social media, at some stations they had to wait up to an hour to get off the tracks and leave the Metro Line B facilities.

This situation forced people to walk along the tracks until they reached the platforms, then head to the exit to find other transportation options. Through the official STC Metro account, they reported that service was suspended on the Buenavista to Villa de Aragón section.

The events occurred on the afternoon of Wednesday, May 14, on the route from Buenavista to Ciudad Azteca. Credit: X/@hectorivanluna.
As a result, the Buenavista, Guerrero, Garibaldi/Lagunilla, Lagunilla, Tepito, Morelos, San Lázaro, Flores Magón, Romero Rubio, Oceanía, Deportivo Oceanía, Bosque de Aragón, and Villa de Aragón stations were out of service.

Why did the CDMX Metro Line B fail?

According to what CDMX Metro staff explained, the outage this time was due to the power supply on Line B. Although they did not specify whether it was caused by a lack of maintenance or human error, they only confirmed that there was a power outage on the route, so they had to intervene to restore service.

“Service on Line B is halted due to a review of the electrical system. With the support of Metro Civil Protection and Transportation personnel, the safe evacuation of passengers from the stations continues,” they explained on social media.

The previous outage on May 7 was due to the track system being detoured, preventing trains from running. On that occasion, operations were resumed until May 8.

In 2024, the Mexico City government carried out an intervention to regrade the tracks on the San Lázaro to Oceanía section due to subsidence. However, no work was done on the electrical system, which often causes problems when high temperatures occur.

Adrián Ruvalcaba, general director of the STC Metro, reported that at 3:42 p.m., service was restored on the affected section. He specified that the route’s operations have returned to normal.

“Service on Line B is back to normal after a review of the electrical system that temporarily suspended service. Trains are now running continuously. We appreciate the prompt response of the @MetroCDMX technical staff and the understanding of users in this situation.”

Source: infobae