I often have to cross two lanes of traffic to make a left hand turn. If I can, I cross and get into the turn lane - like a car. If I can't and the cross street is fairly minor I turn right on the cross street and do a u turn on it and then cross with that traffic. If the cross street also has multiple lanes, I'll cross with traffic, stop at the crosswalk and use the pedestrian light to go across. Whatever it takes to keep you safe! Last night I rode a couple of extra miles to avoid a busy turn.

V.