Originally Posted by
Mr. Hairy Legs
I know exactly the situation you are describing & getting sandwiched. Depending on what the intersection looks like, you might find it best to hang out at the very left edge of the turn lane to allow cars to get through, but a couple seconds before the light changes, if nobody is moving behind you, move forward and right to block the turn lane. If anyone gets mad at you for this, they are an idiot. This is of course assuming there will be enough space at the other side to continue riding without being pushed into a gutter.
This works for some intersections and seems like a considerate thing to do for all.
Or take the middle of the thru lane and hold your place in traffic.
Also many of our right turn only lanes have signs that say 'Right Turn Only - Except Bikes'. This at least, theoretically, gives cyclists some legitimacy in this situation.