logoalt Hacker News

dmixyesterday at 9:34 PM7 repliesview on HN

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? Should there be human police to direct the self driving cars through intersections? Or wait out the temporary electricity failure?

I believe the answer is far more complicated than it seems and in practice having the cars stay still might have been the safest option any of the parties could agree on (Waymo's office, the city traffic people, state regulators, etc).

There are people thinking this stuff out and those cars can 100% pull over automatically but an explicit choice was made not to do so for safety.


Replies

MBCookyesterday at 9:46 PM

I think part of the problem is they’ve made it our problem.

Look I like Waymo. I think they’re neat and I trust them far more than any of the other companies. But in my mind being able to handle stuff like this is just a requirement to be on the roads in any non-trivial number. Like if they had two vehicles in this happened then OK that’s a problem but it was two vehicles in an entire city.

When you have enough on the road that you can randomly have six at one intersection you should absolutely be able to handle this by then.

I want them to do good. I want them to succeed. But just like airliners this is the kind of thing where people’s safety comes first.

What we saw happen looks like the safety of the Waymo and its passengers came above everyone else despite having no need to do that. There are certainly some situations where just staying put is the best decision.

The power went out and there are no other hazards on the road is not one of them. They made things worse for everyone else on average in a foreseeable situation where it was totally unnecessary. And that’s not OK with me.

This feels like the kind of thing that absolutely should’ve been tested extremely well by now. Before they were allowed to drive in large volumes.

show 1 reply
wimlyesterday at 9:50 PM

We already have a solution, it's written down in the traffic laws. If the signals fail, treat the intersection roughly like a four-way stop. Everybody learns this in drivers' ed. It's not obscure. If the cars can't follow traffic rules maybe they're not ready to be on the streets unsupervised.

show 2 replies
dragonwritertoday at 1:54 AM

> 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.

show 1 reply
autoexectoday at 2:17 AM

> What was the better solution here then?

Just pulling over and getting out of the way really would help. There's no reason a human couldn't do the same safely. Not beta testing your cards on public roads would really be ideal. Especially without human drivers ready to take over.

wrsh07today at 1:41 AM

Tbh I'm surprised waymo didn't have remote monitors who could handle cars at intersections or safely pull to the side

ethanwillisyesterday at 11:48 PM

The better solution? To not fetishize technology.

pinnochioyesterday at 9:43 PM

Uh, how about having their remote driver staff take over?

> but an explicit choice was made not to do so for safety.

You know this how?

show 2 replies