Who would be at fault for a collision?

I asked this in askLE and im not sure I got a definitive answer, so I'm asking here. Shitty diagram This would be in Oregon. Blue car has a green arrow but swings wide into the far lane. Red car has a yield sign but is in the proper lane. I should add I have not had an accident like this yet. Im just wondering how it would work legally.

u/TapDancinJesus — 1 month ago