Earlier quoted context omitted.
What was the better solution here then? Assuming there's hundreds or thousands of self-driving cars suddenly driving in environment without any traffic lights. In the pictures you can see six Waymo cars at a single intersection. Assuming some of them had passengers should they all try to turn at the intersection anyway, when their LIDAR says the lane is likely free and pull over to the side? Is that the safest option…
> Assuming there's hundreds or thousands of self-driving cars suddenly driving in environment without any traffic lights. Self-driving cars should (1) know how to handle stops, and (2) know that the rules for a failed traffic light (or one flashing red) are those for an all-way stop.
Humans, luckily, never follow the rules to the letter, which made it reasonable to put them down like this: some will be more impatient/aggressive, others will establish eye contact and wave one another through, etc.
In a situation like this where you've got "drivers" who can't collaborate and learn on the spot, the rule does not make sense.