Sorry, pretty much apples and oranges. Sure, driverless buses, driverless cabs, tests in mock towns.
I appreciate the effort but this in no way addresses the situation of big, densely populated cities dealing with driverless cars. With an infinite number of cars being driven into these large city centers for whatever reasons, every day
I mean, like Hong Kong or some such, not Arlington, Texas. Yes, it's possible it could work in cities with a population of about 500,000 in spread out geographic situations, but not a major inner city.