AlanSubie4Life
Efficiency Obsessed Member
My WAG from the video is that the concrete color and the bright sun are factors. Before the corner there's high contrast between the blacktop and the lighter curb concrete, but then right at the turn the concrete suddenly runs out into the road surface a bit, and in the bright light it might have trouble telling where the raised part of the true curb even starts, depending on shadows mostly.
That setup is probably less common in some areas than others, and hopefully it will get better at this stuff over time. Even a distracted or careless human might get slightly confused there in the right situation and lighting; they should probably paint it in general.
Would be nice to know exactly where this curb is in CA. It looks to me like it's possibly just a really short turn lane relative to the typical speed of travel so the car just gets over too quickly. This is pretty uncommon in CA, except on older streets turn lanes are usually pretty long.
In any case, clearly can't be trusted in any situation which might require above average precision on the part of a human driver. And also in situations outside of those, where it just decides to inexplicably cut corners.