Early morning, lightly travelled city road. I have to turn right at the intersection and it is a long wait at the intersection for the lights to go through their cycle because the lights for the intersecting street are staggered and the opposing traffic has an advanced green. When I am in the right lane, what invariably happens is that if the light turns red the blue car sees me in the right lane and will invariably switch over to the right lane and then I end up delayed by a whole traffic light cycle. Not sure why drivers do that but my conjecture is 1) Copy what other drivers do and 2) Get ahead of the other driver, thus establishing your dominance.
It took me a long time to figure this out but the thing to do is to come up to the intersection in the middle lane. I find that this way the blue car stays in the middle lane. I only change over to the right lane to make my turn after the blue car has stopped for the light. Last week I had the blue car in the right lane and he actually switched over to the middle lane when he noticed me in the middle lane. Of course that was exactly what I wanted and I made my turn without delay.