On 13 Oct, 11:49, " wrote:
Thanks for those helpful insights. So Olympia trains (to/from) have
the potential to block any line EXCEPT the line from Wimbledon into
platform 2, which has nothing obstructing it (except of course another
train in platform 2)?

M.M.

Yes, basically. They have to start from platform 4, which they
occupy, and they have to cross to the track from platform 3 towards
either West Brompton or West Kensington, conflicting with anything
from platform 3. They duck under the track from West Brompton and
then cross the line from West Kensington on the flat.