I just saw this in the newspaper
It seems it is not an isolated incident but more a structural collapse of badly maintained infrastructure throughout the country.
It is just speculation.
We're not civil engineers here. And noone should correlate just 2 data and reach a conclusion.
Even without a degree in civil engineering it's clear that picture did not take in consideration many tecnical aspects:
- the size of the bridges
- the type of the bridges (girder, cantilever, suspended, arch, cable-stayed etc.)
- the construction material of the bridges (steel, concrete etc.)
- how many earthquakes have occurred over the years where the bridges are placed and how much energy the bridges received
- the year of construction of the involved bridges (to relate the badly manteinance to aging)
- how many bridges we have in the country that are still in place (to understand if there is huge issue or just single events)
- who is responsible for maintenance of the bridges (to understand if there is a common cause, not all bridges are inspected by government representatives)
- how much bridges collapse in the rest of the world (to compare accidents)
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and probably many other things that, without at least a degree in civil engineering, we are not considering.So journalists and newspapers should just tell what happened and not provide any data to force people to reach a conclusion, which should be left only to the experts in the field.