Permitted left turn (IMAGE) Oregon State University Caption A "permitted" left turn in this driving simulator illustrates the complexity - watching the signal, watching the traffic, and watching for pedestrians all at the same time. (Image courtesy of Oregon State University) Credit Oregon State University Usage Restrictions None License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.