Originally Posted by
tarwheel
This is a tough situation for riding in traffic, particularly if there is no turn lane. If there is a turn lane, I would get to the left and into the lane as soon as there is an opening in the traffic. If not, you just have to keep going and wait until there is a good opening. Personally, I don't like riding in the left lane for very long unless the traffic is clear. Drivers just don't expect a bike to be there and get ticked off even if they see you.
I do this as well, holding open the option for making a hook turn if traffic is too heavy.
(In my case, a "hook turn" means I continue straight across the intersection, stop at the other side, turn 90 degrees to the left, and prepare to proceed straight when the signal allows.)
When moving into a left turn lane, consider not only openings in traffic but also your visibility - how visible you are to motorists. In some situations you may have plenty of openings but obstructions or ridiculous vehicle sizes may make it difficult for motorists to be aware of your presence. Take care in these situations.