A 35-year-old delivery truck driver came to a controlled intersection and brought his truck to a stop for a red light. When his light changed to green, he pulled to mid-intersection and then stopped to allow oncoming traffic to clear. After defendant's traffic light phased to yellow and then to red, he commenced his left turn. Plaintiff entered the intersection and struck defendant's truck as it was clearing the intersection. Plaintiff claimed her light was yellow and defendant executed his left turn in front of her path of travel, failing to yield the right-of-way as required. Defendant contended he commenced his turn after his light had phased to red and when plaintiffs' car was still a sufficient distance away that she should have been able to stop safely.