Tom Anderson wrote:

Playing devil's advocate here - how safety-critical is this? I mean, the
least safe failure mode i can think of is the door being open, which
would leave the Jubilee in a similar state to every other tube line!

Presumably the difference would be one of human behaviour. If people
are used to the doors opening on the covered lines meaning they can walk
through them then they may do so if this situation even though they
would never simply step off a normal platform.

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