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So I came across this FSDb video (pretty sure it's 11.4.9) that I thought was particularly worth discussing because the FSDb not only made a dangerous maneuver but there was very little warning to the driver that it would make the move.
The navigation is set to drive straight at the traffic light. At the last moment FSDb throws up a left turn signal and makes a sudden left turn, cutting in front of oncoming traffic. My guess for why it decided to make the left would be that it incorrectly realized it was in a left-turn only lane, so it made the left to follow traffic rules. But that doesn't explain why it failed to yield to the oncoming car. The car does seem to appear in the FSDb visualization. There is a moment where the car might've been occluded by the vehicle directly in front of the FSDb (it's hard to tell because the blind spot camera pops up over the visualization). But even if it couldn't see the oncoming car, it's usually so cautious about turning at intersections, even when there are no other cars around. My guess would be a sort of race condition occurred where it entered the "make left turn" routine in an unusual way (realizing it was in a left turn only lane) that circumvented the "is it clear to pass?" routine.
I've seen some bad FSDb mistakes but this one is particularly discouraging because there was little an attentive driver could have done to avoid the potential accident. Luckily the oncoming car reacted and braked on time.
So I came across this FSDb video (pretty sure it's 11.4.9) that I thought was particularly worth discussing because the FSDb not only made a dangerous maneuver but there was very little warning to the driver that it would make the move.
The navigation is set to drive straight at the traffic light. At the last moment FSDb throws up a left turn signal and makes a sudden left turn, cutting in front of oncoming traffic. My guess for why it decided to make the left would be that it incorrectly realized it was in a left-turn only lane, so it made the left to follow traffic rules. But that doesn't explain why it failed to yield to the oncoming car. The car does seem to appear in the FSDb visualization. There is a moment where the car might've been occluded by the vehicle directly in front of the FSDb (it's hard to tell because the blind spot camera pops up over the visualization). But even if it couldn't see the oncoming car, it's usually so cautious about turning at intersections, even when there are no other cars around. My guess would be a sort of race condition occurred where it entered the "make left turn" routine in an unusual way (realizing it was in a left turn only lane) that circumvented the "is it clear to pass?" routine.
I've seen some bad FSDb mistakes but this one is particularly discouraging because there was little an attentive driver could have done to avoid the potential accident. Luckily the oncoming car reacted and braked on time.