Yes it is.. the "visual" cues will be in the form of radio communication between autonomous cars. And how do human-driven cars fit into the equation? Sorry, human, you're just too unpredictable and we can't communicate with you. You have to go.
That’ll be the marketing spin on it, anyway. Meanwhile the radio systems and protocols will be on Version 327 and will still be buggy pieces of crap.
Isn’t the most common phrase on CVRs from Airbus crashes still, “WTF is it doing now?” (Poking at Airbus but Boeing is headed the same direction. With similar results.)
Some accidents a computer could have avoided because the human didn’t know things they should have. (Colgan.)
Some accidents were better having a human there to do things the engineers would have never coded into the system. (Sioux City, Hudson River.)
Some, the system simply didn’t have enough data and couldn’t have done anything and THEN the engineers added user interface confusion and the pilots needed to know things they didn’t know, all in combination. (Air France 447.)
Your assumption is that all events which could lead to accidents without action, will be of the former sort rather than the latter two.
Computers are not going to be able to teach themselves how to fly a crippled vehicle. At least on the ground they can just stop, unlike aircraft, but learning isn’t going to ever happen. People can learn, but that’s also the root of the problem, many didn’t learn BEFORE driving how to drive properly. Or even, well.
And remember, aircraft tech is one of those areas where there’s not a whole lot of pressure to skimp and be cheap. Cars? Fractions of pennies count when buying the electronic components, and like you’ve mentioned, it’ll be way easier and cheaper to lobby humans out of driving as an excuse for bad engineering than it will be to do good engineering. Waaaaaay cheaper. And then everyone will notice the crashes are still happening. Hmmmm. We replaced one fallible set of humans for another.
One set just drives the cars remotely through their bad code and flaky RF communications systems with constant arguments over the data protocols in endless meetings with legislators and their competition, as well as real-world interference sources causing a significant percentage of the RF links to simply fail.
Oh and at least ten years arguing about the new and improved “Version II” RF protocol and how to phase it in and make it backward compatible with the utterly broken “Version I” — before anyone can even implement it and find the protocol is still missing something important.
But here, let’s be more practical. There’s thirty cars in RF range of the about-to-have-an-accident car. They’re all jibber jabbering on a shared frequency data link. The car about to have an accident gets the exact amount of time this lady squished by the Uber car took. Less than one second.
How do you propose to have the accident car (let’s say it CAN see the lady and MUST move over a lane to save her and there’s a car next to it that could ALSO move over one lane and that one is open... just for a fun scenario) somehow shut up ALL of those other transmitters sharing a frequency so it can scream “get out of the way!”
Ok maybe you got lucky and it got a time slot. And it screamed. What did it scream? How does one reference a “lane” to surrounding cars? Do all cars need a perfectly updated real time map including temporary lane closures? Or do we just design this as a proximity thing? How does the accident car tell where it is and where it thinks it needs to go, or stop?
Now the message is received by the non-accident car in the middle lane. It somehow (engineering hand waving goes here) figures out a) the troubled car is to its left and b) an open lane is to its right. Does it have to tell the accident car, or just move? Is the accident car just watching for any “out”? Does this middle lane car need to tell the accident car how long it will take to vacate the lane since it has nearly bald tires and it’s raining?
And how long does all of this data comm take? And what happens if there’s three accident avoiding cars in RF distance of each other? Which one gets exclusive use of the RF channel and which two just have to crash?
All of this is going to operate flawlessly in your eyes, in approximately one second?
See this is one of the major problems of this sort of pipe dream. Nobody applies what they already know about the engineering problems this radio link creates.
We have TCAS doing something similar between airliners but we don’t operate airliners wingtip to wingtip in cruise. We have the engineers a reasonable reaction time to work with by not allowing aircraft that close and anything closer than the minimum is considered a real threat.
The closure and reaction rates in automobiles are quick. Real quick. Which is why we see constant accidents and nobody gives it much of a second thought when there’s another deadly one on the evening news. You’d have to consider the car next to you a constant emergency threat if it departs it’s lane.
This isn’t going to be as simple an engineering task as you think. And then add human error to the engineering and it’s going to take a long time to work all of that out.