The 231 does not stop at this location where the bus got stuck in the cup-de-sac, why didn’t the driver ask a member of the public to act as a banksman , if nobody was around, I would have simply knocked on a residents door to ask for a help?
I have got in to a tricky position many times, and asked members of the public to be a look out when I’m reversing, not one of them refused to help out and they got quite excited as it took the boredom out of their mundane day, their faces light up when they have a responsibility and a bit of authority to stop traffic or pedestrians.