Just been in Munich (escaped before BeerFest). Central S-bahn lines have
platforms on both sides, one for entry and one for exit. Must
significantly reduce dwell times as unloading (alighting) and loading
(boarding) take place simultaneously.
Was this considered for Crossrail?
It is confusing for strangers as in Munich there is no obvious 'up' exit
on the entry side if you get out on that side! (We just awaited next
train and 'walked through'...)