2. Screens inside arriving buses and trains telling you where to find your onward connection would be magic. Not sure this directly answers the immediate question asked by Mark, but it sure as heck prepares people ahead of time to whichever solution is chosen, problems with it are dumbed down. Arriving into Swindon (from Melksham), an onward service display in the carriage telling me about the platform and time for London, Didcot, Cheltenham Spa and Cardio would be great. Arriving into Westbury, a similar board avoiding a dash to the flurry at the top of the stairs, please.
The new trains on Northern have this, even for intermediate stations where there ore no onward connections