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metrazol t1_ituvl7y wrote

Reply to comment by uncheckablefilms in Metro studying Silver Line Express service by walkallover1991

Tunneling costs? While most of the system is cut and cover, tunneling was a real weakness. Then again, all costs are ridiculous compared to other systems...

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uncheckablefilms t1_ituyuk6 wrote

I think inside the city core it makes sense why they can’t won’t update it. But building out the silver line to the airport maybe having areas of 4 track might have made sense to allow for express service. That said, someone else responded to my comment w info about 2 track vs 4 track that looks incredibly informative. :)

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MFoy t1_itvl1t7 wrote

It doesn't save much time to do an express lines on the above ground areas when the big bottle neck is the tunnel under the river. Without more tunnels, you can't run more trains/have an express service.

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