You can argue all you want about having the right of way on a bike, but if you are dead, it won't do you any good. You have to protect yourself and assume that others either don't know the rules of the road are or are unwilling to concede the right of way. Or more likely, they don't see you either signaling for a turn or out there in the left hand turn lane trying to make a turn. And so you get run over. I found the best/safest thing to do is to act like a pedestrian at an intersection -- go up onto the curb at the corner, get off the bike and walk across at the crosswalk, with the appropriate light. Especially in heavy traffic situations. If you are out in the left turn lane like an automobile, others may view you as to be treated as an auto, and you must yield the right of way to oncoming traffic, assuming you don't have a protected left turn signal. If you choose to be viewed as a pedestrian, then you might understand that you have the right of way no matter where you are (jay walker or not), but the chances of you getting hit by an unalert motorist are greatly increased. Don't expect them to respect your rights.