Re: What about the downsides?
The interesting part is that 1 bus carrying 40 people does about 5000 times as much roadbed damage as 40 cars carrying 1 person and that damage doesn't decrease much if the bus is empty.
Driverless cars are more likely to smooth traffic flow too, because they don't do stupid things like jumping red lights or fouling intersections.
The really interesting part is that overall traffic levels (and numbers of parked cars) are set to radically decrease (driverless cars means cheaper taxi services, which means more people not bothering to buy a car, or leaving it at home when going into the city) - which is a real cause for concern to areas like Westminster which have become totally dependent on parking income.
Sadiq is seeing the things as a threat and not an opportunity. They come with the Knowledge built-in and updated as to the best route every second of every day.