TranSEC traffic state estimator (IMAGE) DOE/Pacific Northwest National Laboratory Caption TranSEC's near real-time display of traffic state estimation in the entire Los Angeles Metro Area at 6 p.m. on a weekday. This display was computed in less than one hour. Green areas indicate traffic is flowing freely and yellow and red areas indicate congestion. Credit (Image courtesy of Arun Sathanur | Pacific Northwest National Laboratory) Usage Restrictions None License Licensed 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.