The image above shows a picture of an intersection near my home that bothers me frequently. As you can see, there is no dashed line indicating which lane drivers turning left from northbound should enter. I'm under the impression that because it's a double left with no indicators otherwise, each driver should turn into the corresponding lane (inner to inner, middle to middle [red]). However, people frequently (est. 75% of the time) turn into the middle lane from the inside left-turn lane (blue). The only reason I could see doing this is because the closest lane to turn into is a turn lane with a thick white line, but I fail to see how that means the blue scenario is correct. Could someone clarify this for me? For reference, I'm in Phoenix, AZ.