Technology is neat in some ways - but why take away yet another "engaging" chore? Driving takes interaction, thought, care, effort, concentration and a host of other activities. Forgive me for my skepticism but it seems like a further dumbing down of the human race. Sorry to be a killjoy,,, just my 2 cents
Computers take away from writing notes, sending mail, keeping files organized etc but that doesn't mean the human race is worse off, it's progress that's made society more productive. Driving is fun for a lot of us but there are huge advantages not having to do it. Traffic and road rage would be a thing of the past as cars who all talk to each other drive a constant speed 2" from each others bumpers. No need for traffic lights anymore either, computers would track traffic and calculate the most efficient way to process it.
As I've pointed out, seniors would benefit, drunk drivers would be taken off the roads (they wouldn't be driving anyway) and your workday could start an hour sooner letting spend less time at the office. Your car could drop you off at the door and go park itself. You could go out for a drink or two with co-workers or friends without worrying about driving (I will no longer drive after a single beer, it's an example I'm trying to set for my kids).
I don't think it'll happen overnight and I agree with the previous poster that it will be phased in and some existing infrastructure may be converted. I don't see that as a barrier or waste as some people have said, it's no different than re-purposing a lane on a hwy for an HOV lane or bus only lane. We've even been adding bike lanes to the shoulders around here.
As for liability, it seems clear it will rest with the owner or occupant of the car, even if they have no control over the situation. That will simply be what you're signing up for by buying an autonomous car. The up side is that all autonomous cars will have an incredible amount of information available in the case of an accident. Radar, speed, video etc will all likely be stored and used to investigate incidents.
I LOVE driving, I always have. But there are too many advantages to taking the steering wheel away from passengers and I don't think that's a dumbing down of the human race, I see it a giant leap forward.