Markkula et al. film (VIDEO) PNAS Nexus This video is under embargo. Please login to access this video. Caption Simulated driver-pedestrian interactions Credit Markkula et al. 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.