Superstreet In Action (IMAGE) North Carolina State University Caption "Superstreet" traffic designs result in faster travel times and significantly fewer accidents, according to the new study. Credit Dr. Joe Hummer, North Carolina State University Usage Restrictions Photo credit must be given. 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.