You left out the key word in that phrase, “full”. Tesla cars have autonomous driving features that require a human in the driver seat to take over in case the autonomous features shut off. That’s not “full self driving”.
There's a word in GP's post that you elided. "Full" means a human doesn't need to be supervising, and it works outside of the heavily mapped and stable conditions of LA.
Four lanes, left to right: straight+left, right turn only, concrete divider, right turn only, right turn only. Note that there are only two lanes when you turn right, so you can turn into the rightmost lane from lane 2, the leftmost lane from lane 3, rightmost from lane 4.
Traffic lights (four signals) on the far end of the intersection work thus:
1. Left two lane lights turn green (Right two lanes are red). You can have traffic going straight, left or right. Traffic in lane 2 can turn right, but lanes 3 and 4 cannot.
2. Right two lane lights turn green, left red. Lane 2 cannot turn right but lanes 3 and 4 can.
All the lights are circles, no arrows. The only indication of weirdness is that there's a "No turn on red".
https://www.youtube.com/watch?v=AQir90MktRc
Just because it's supervised doesn't mean its not self driving