I think the idea behind closing Terminal A was to speed up construction of the North Terminal, thus saving $$$$.
Exactly. Anything else is just BS.
They are installing a train system on the roof of Concourse A. By closing Concourse A, they are shaving anywhere from 8 to 16 months off construction.
Concourse A will see renovations, though, such as new insulation, fixing some areas prone to leaks, etc.
I was told that the roof wasn't built strong enough to support the train system that was included in the plans all along.
Either way, it's a fiasco.