Comment on Waymo issued a recall after two robotaxis crashed into the same pickup truck

Chozo@kbin.social ⁨9⁩ ⁨months⁩ ago

After an investigation, Waymo found that its software had incorrectly predicted the future movements of the pickup truck due to “persistent orientation mismatch” between the towed vehicle and the one towing it.

Having worked at Waymo for a year troubleshooting daily builds of the software, this sounds to me like they may be trying to test riskier, "human" behaviors. Normally, the cars won't acceleerate at all if the lidar detects an object in front of it, no matter what it thinks the object is or what direction it's moving in. So the fact that this failsafe was overridden somehow makes me think they're trying to add more "What would a human driver do in this situation?" options to the car's decision-making process. I'm guessing somebody added something along the lines of "assume the object will have started moving by the time you're closer to that position" and forgot to set a backup safety mechanism for the event that the object doesn't start moving.

I'm pretty sure the dev team also has safety checklists that they go through before pushing out any build, to make sure that every failsafe is accounted for, so that's a pretty major fuckup to have slipped through the cracks (if my theory is even close to accurate). But luckily, a very easily-fixed fuckup. They're lucky this situation was just "comically stupid" instead of "harrowing tragedy".

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