@wanderer34
I don’t really see the feasibility of looping the entire Blue line, especially considering that there isn’t designated termini for layovers and rest for the train engineers.
Not having a terminal station for train operator changes or layovers is not a big deal. Brentwood and Alexandria yards have platforms for making mid run operator changes or layovers, as many operators begin their runs from those yards. A Blue line loop would likely have a platforms at the yard that will built to service the cars that operate on the line.
Many of the stations in the existing system have facilities for train operator changes or layovers as they were temporary terminals during build out of the system. Silver Spring, Rhode Island Avenue, Wiehle - Reston East and Mount Vernon Square to name a few. A Blue line loop will likely be built out over multiple phases and will be fitted with terminal facilities at those temporary terminals.
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John in the sand box of Maryland's eastern shore.
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