In message , at 23:48:27 on Sun, 31 May
2015, Mizter T remarked:
Er, I don't think so! Crossrail will be an intensive metro service
through the core, operating with ATO signalling and specifically
designed and high performance trains. There's not going to be anywhere
to reverse trains like you suggest.

So if there's a "one under" at Maryland, the whole core freezes up for a
couple of hours?
--
Roland Perry