Quote:
Originally Posted by Hatman
I had a thought about the north concourse, and concluded that it's accelerated construction is probably what saved the TRAX extension from becoming more of an issue.
It seems that the plan to run TRAX to the east side of the terminal was part o the original plan, but this option was dropped when it was decided that airplanes needed that space on the side of the terminal more. This was back when the north concourse was still just an expansion option, and the plan was to refurbish the existing airport concourses/gates as part of the reconstruction. Then the plan changed, and the north concourse got accelerated and the refurbishment plan got dropped. This probably freed up a lot of space for airplanes elsewhere, which allowed TRAX to be put back where it originally was - on the side of the terminal.
I find it interesting how fluid the design process can be, and how tiny little decisions can trickle down through other pending decisions and create noticeable differences. Infrastructure doesn't change very often, so you can think of older infrastructure as time-capsules of thought - if you know how to read them.
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The north Concourse has definitely opened up some flexibility in the construction phasing of the airport. If I understand correctly, the new terminal will open with closer to 50 gates rather than the 24ish expected to open along with the new terminal. I think this gives them a lot more flexibility in the second phase of construction... rather than having to demolish the terminals, construct a weird network of bridges between the concourses, construct the new S. Concourse E, then demolish the old bridges, connecting the new concourse with the old concourses, and finally decommissioning and destroying the old gates in phases to keep as many gates as active as possible.... I haven't seen the new construction phasing strategy, but I believe that they are now able to go ahead and directly demolish B, C, and D along with the old terminals, and then to go ahead and construct N/S concourses East but maintain a bridge between concourse A and the rest of the airport.
If I remember correctly, the airport's plan was to include larger planes along the southeast side of terminal drive (like, 757 large, not widebodies). I think they are now choosing to move those gates elsewhere and put regional jets along that part of the concourse. I think that would help with keeping foot traffic even throughout the concourse because it was expected that most of the widebody gates would be opposed to the gates along the trax stop.