Autonomous and electric cars are not "a real" solution
It just moves the problem somewhere else, electric cars do eliminate the pollution caused by internal combustion engine vehicles, the problem is that in order to produce those vehicles, raw materials have to be sourced and that process causes a whole lot more pollution, along with that, the manufacturing process pollutes a lot as well and you have to think that a lot of countries don't have a renewable and clean source of energy to charge the batteries of those cars, even worst when you add to that the planned obsolescence model on which those vehicles are made, use them for 4 or 5 years and throw away, which means, more waste!
Autonomous vehicles won't solve the traffic jams, they could actually become worst, lots of people that where not able to drive because of a physical disability, or where just afraid or didn't to drive will be able to buy a car and add one more to the traffic chaos!
We have to admit that cars are not a reasonable transportation solution for today's urban situation, city's residential and comercial zones layout is also an issue, it force people get displaced far away from home, so do the need to go to the office to work when you could do the same job from home.
Another problem is the "social status" that cars represent on today's culture, on lots of countries and cities around the world, traveling on public transportation is seen as a "poor people's" behavior, and the security problem in some cities where you can't walk peacefully on the streets without running a high risk of being mugged, raped or killed; forcing many people to buy a car to stay safe.