Is there another way to avoid this intersection? Even if it means adding extra miles on to your commute. If ther is not then I suggest you walk as a pedestrian across the intersection and maybe even as far as the bike trail. In most communities riding on the sidewalk is againts the law. If it is only 100 feet or so to the bike trail after you walk across the intersection then riding would probably be ok. But as dangerous as this intersection sounds I would not chance it by riding down the left lane on a bike to make a turn.