AlanSubie4Life
Efficiency Obsessed Member
Very curious in Clip #2 (Chuck pointed out this special situation), how this would have behaved if traffic in the first set of lanes had been clear, when the left turning traffic was approaching. You could do this turn many times and not have exactly the right situation: 1) near-side traffic clear, but 2) left turn traffic approaching on far side. Car has to perceive and predict that car is turning left, otherwise it could proceed and then have to halt in first set of traffic lanes to avoid a collision. Humans would rely on seeing the left turn signal in this case (or maybe wait for lane #1 on the far side to be empty to minimize risk since people often don't signal) if employing this turning strategy.and dealing with left turning traffic, which can be hard for a human and is a case you have to watch out for with this strategy!),
And it needs to be pretty quick about getting into the the position in the middle so as to not interfere with anyone turning left. As long as you get in position quickly enough they'll easily see you, and just turn behind you, rather than across you. Right now it takes 7-9 seconds (!!!) for the Tesla to cross the three lanes of traffic and get in position. This is an eternity relative to human performance, FWIW. If you're doing that, you need to be able to see traffic about 400-500 feet away on the far side and see them signaling (or, easier, determine that there is no traffic in that fast lane). Speed that movement up, and it makes it easier to make a safer move and reduces the burden on perception.
Tricky. Probably won't see that very frequent, but at the same time quite rare case tested though, for 10.13.
I have this situation all the time on my UPL, because turning traffic is more common. But visibility is excellent, and I'm always using the all-or-nothing strategy, since I have just four lanes and it's not as busy as this, so it's not an issue to just wait for the all clear. Hoping they don't make the "frogger" strategy a thing for all left turns, as it would potentially increase risk.