The Government of Mexico City accused this Wednesday that there are a number of technical and scientific “inconsistencies and contradictions” in the final report delivered by the Norwegian company DNVin charge of the expert opinion of the accident on metro line 12 a year ago.
This was the second statement made by the Government of Mexico City on the expertise of the Norwegian company, hired by the capital authorities themselves, after last week that he described as “deficient”.
The person in charge of Civil Protection of the capital, Myriam Urzúa, stated at a press conference, which was not attended by the head of government, Claudia Sheinbaum, that these “deficiencies and inconsistencies in the analysis (…) did not allow the root cause of the collapse to be clearly identified.”
He also noted disagreement over the use of images from the Google Street View system “as a reference for drawing conclusions in structural analysis”.
In the same sense was the position of the Secretary of Works and Services of the Government of the capital, Jesús Esteva Medina, who pointed out that the DNV company used the aforementioned Google system “to determine deformations.”
He explained that the report pointed out that, according to historical Google Street View images, “buckling of longitudinal stiffeners in the beams, negative vertical deflection of the tracks and central deflection are observed.”
“How can it be that a company of this magnitude bases a technical conclusion of the highest precision, when Google itself warns of its limitations?” questioned Esteva Medina.
Furthermore, both officers They pointed out a series of technical and scientific points that, according to the agreed contracts, DNV did not comply with.
The DNV company was hired by the Government of Mexico City to carry out an independent report and both its expert opinion and that of the capital Prosecutor’s Office had concluded that the accident was due to a “structural failure” of the construction, in the period of 2006 to 2012, although there is still no criminal resolution.
JM
