Earlier quoted context omitted.
> Would smart roads be expensive? RFID responders seem super cheap compared to how much actual asphalt costs. Authorities are currently unable to remotely control flows, speeds and safety which is completely bonkers. Yeah its not actually that easy. Go and look into train signaling. And cars are not even able to do coupling. Making a train system operate like a super-railway with cars is crazy difficult and has never…
But is it more crazy difficult than making a car that knows how to safely drive on roads designed specifically for humans? That said, I think even just basic machine-readable road metadata like signs, speed limits, lanes etc would improve matters.
That assumes that sign reading is the primary issue with AI cars and it isn't.
If you are willing to go to that expense and infrastructure investment, why not just build thing like trains (trams, subways, S-Bahn) and things like Trolley buses and so on.
They are far more space efficient, you get much higher threwput then your untested fancy road infrastructure.
Another issue with your solution is that there are 1 billion cars out there that do not have any of these things so after decades of working on it, you will still have decades where most cars don't use any of this stuff.