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I'm sure there are civil engineering issues I haven't thought of, but it seems like there would be a lot less tunnel to bore if they take the existing line that
by bunderbunder 8y ago
I'm sure there are civil engineering issues I haven't thought of, but it seems like there would be a lot less tunnel to bore if they take the existing line that already goes from downtown to O'Hare and just convert it from being partially underground to being completely underground.
- MisterTea 8y agohow do you do that without service interruptions?
- bunderbunder 8y agoYou don't. Don't worry, blue line people are used to it.