From its provisional inauguration on October 30, 2012, until its first service closure on March 12, 2014, that is, in 17 months, Metro Line 12 never received preventive or operational or safety maintenance, what thundered tracks, trains and the structure of the work.
The decision was made by the then director of the Metro, Joel Ortega Cuevas, who aggravated the situation of the civil works with the reduction of speed in the so-called Golden Line, accelerating the wave wear of the rails, cars and parts.
This is stated in the reports made by the company Systra in 2014 and in the maintenance logs and warrants made by the National Union of Workers of the Collective Transport System (SNTSTC), which requested the government official of Miguel Angel Mancera attend to the problem.
In your report Corrective actions for Line 12, the company hired by the Ministry of Works and Services of the capital, detailed that, among other things, “there were deficiencies in maintenance from the start of operation (October 30, 2012) to the suspension of service (March 12, 2014) and the adequate lack of problems detected”.
Consulting Manuel Barrera and Associates, who conducted the study “Process of contracting and start-up of the rolling stock of Line l2”, through the PPS modality in September 2015, affirms that in the final delivery of the so-called Golden Line the then director of the Metro, Joel ortega, received it with 3,105 work failures, same as aggravated by lack of maintenance.
Among the faults are damage to the sleepers, rail fixings, breaking fixings of delaying devices, wavy wear of the rail in the curve, as well as “abnormal” wear of the train wheels that affected the operation and safety of the operation of the train. Line 12 which ended in his closing for his rehabilitation.
Systra specifies what measures taken by Ortega as the speed reduction in operation of the means of transport from 80 to 40 kilometers per hour “accelerated the problem on track and train.”
“The speed reductions were inevitable considering the wear and tear on the trains and the track. However, the speed reductions aggravated the problem of the road ”, he refers.
At that time, the firm asserted that despite the damage, the civil infrastructure “in the viaduct section is normal, there is no risk of vibratory development under the passage of trains due to structural problems.”
He indicated as one of the problems of the Line 12, the incompatibility of trains and rails, but that these could be reversed or lessened with “adequate maintenance from the beginning of the line’s operation in order to control the foreseeable wave wear”.
Workers asked to maintain Metro Line 12
MILLENNIUM had access to the offices sent by the Metro union to its director, Joel ortega, in which they asked to provide preventive, operational and safety maintenance for the operation of line 12.
Back then Ortega it broke with the union so the calls were ignored and the medium continued to function without preventive measures.
According to the workers and officials of the past local administration, Ortega It did not allow the construction consortium made up of ICA-Carso and Alstom, nor the certifying consortium, made up of the foreign company DB international GMBH, associated with the foreign companies ILF Beratende Ingenieure AG, Tüv Süd Rail GMBH and Hamburg Consult GMBH, to supervise, maintain nor will they endorse the changes or the operation of Line 12.
The workers alerted the Metro director of the wear of rails and carriage wheels, the detachment of welds, sleepers and even change needles, as well as damage to the work derived from the lack of maintenance.
On March 12, 2014, Ortega Line 12 service closed for your first rehabilitation and together with the Ministry of Works, it endorsed the purchase of heavier materials that overloaded the work by almost three thousand tons.
That over weight who for six years had the Golden Line it would have been one of the reasons why it collapsed on May 3, 2021.
In November 2015, no longer Ortega as director of the Metro, the head of government, Miguel Angel Mancera, opened the total service of Line 12 where he highlighted that the most important part in the repair and maintenance work was the “specialized diagnosis” that was carried out.
He indicated that in the future, the government “will guarantee that this line will not be closed again as it had to be closed, the maintenance will have to be exhaustive, it will have to be detailed, we will have to work very hard each and every one of the Business”.