Driverless vehicles have a long way to go before they will be an improvement - which is sad to say, because I'd LIKE to see AI be used to improve traffic flow.
I have a $2100 technology option on my Ford Edge Sport SUV. Granted this is a 2017 car, but it has 95% of the same safety features of the majority of current cars. It has "blind spot metering", so if there is a vehicle in my blind spot on either side, a light appears in the appropriate side mirror.
Except....there are at least two car models that are "invisible" to this metering. Why, I have no idea. They are standard size cars - one is a Mercedes, in fact - but the metering feature cannot see the car at all, even when it's directly across from mine.
Also, the much-vaunted "lane change recognition" feature? This is essential in "hands free driving". Our roads in CA are constantly under construction and much-needed maintenance, so lane striping is often altered temporarily so work crews can get highway projects completed. It's a rare car whose lane recognition software doesn't get confused at least on occasion by these instances.
Not long ago I encountered a freeway exit that was being worked on, and the normal striping was hastily (and sloppily) altered. I have my lane software turned to "vibrate only"; I NEVER let it control the wheel. The temporary exit markings were there, but the turn was sharp with a much shorter approach than normal. I could tell by the vibrations the software was totally confused about where the center of the lane actually was.
Now, no one with any sense would be using an autodrive system to exit a freeway....but as we all know, there are too many drivers who don't seem to have much common sense, and unfortunately, sometimes it's others who end up paying the price for their stupidity.
Even Tesla, who pushes autodrive more than any other mfg, doesn't believe in using automatic driving in crowded urban situations. Allowing two companies to use residents and commuters of a very crowded city as their 'guinea pigs' for perfecting their proprietary software, is a truly dumb idea.