into that curved cross

Oh right, you mean the intersection shown in the article? Yeah nah, that's a complete non-issue. First, remember that the American "right on red" rule is widely regarded by the rest of the world, quite rightly, as utterly fucking insane. When there's a red light, you simply cannot go.

So that weird crossing shown, turning from the right-hand side of one road to the left-hand side of the other, is totally fine. You just design the light phasing so that there is no phase in which people can cross over each other.