Quote:
Originally Posted by BCPhil
The stations look like the space was dug for 50m platforms, but only 40m was actually finished off. I think making the 40m underground stations into 50m stations involves only knocking down a wall or two and pouring some concrete and putting up some tiles, no excavation needed. It's probably something that could have been done for a few million more at the time, but the contractor would rather get thrice that when it's needed in the future so they didn't do it. Defer the cost to better balance the books now, and make more money on it in the future.
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No excavation was needed period, which is why zweisystem was BSing. The extension and temporary walls are incredibly clear at Broadway-City Hall, because of the sloping ceilings. There are clues at many stations, most of which is where the GIDS sensors (Guidway Intrusion Detection Systems) are located. Even 33rd Avenue and 57th Avenue has the platform shell already done.