This great video from Santiago shows that when dealing with issues the best solution doesn’t always have to be something massive and expensive but that sometimes quick, cheap and often counter-intuitive solutions can solve the problem.
It’s pretty impressive that blocking people a single gate on one platform (along with a person to operate it) can improve the passenger capacity of a station by 15% and enable increased train frequencies. At least in the near term, the place where we might needs to start getting serious how we move people on PT will on the buses. Perhaps a flow system where passengers embark by the front door and alight only by the back door might be required and it was one of the things suggested by a few different people in our recent ideas competition.
My guess the biggest barrier too many of these types of solutions is not always so much a technical one but political/public perception one.