I'm sure i remember a news item about plans for driverless taxis around the London Olympic Park, in the run up to the 2012 games.
I think it was on the Greenwich Peninsula, around the dome, and quietly went away.
There was supposed to be water taxi around the Olympic park, manned by ex squaddies, but that went quietly away too.
It will never work while there are so many random moving obstacles, other drivers, cyclists, pedestrians, electric scooters, skateboards using the same space.
The constant need for software updates on the VW,s adaptive cruise is annoying, but not half as annoying as it slamming on the brakes for no reason.