EASI RIDER (IMAGE) Purdue University Caption Purdue University researchers and their collaborators developed a realistic demonstration of an accessible design concept that industry could incorporate into its development of autonomous vehicles. Credit Purdue University photo/John Underwood Usage Restrictions No restrictions. License Public Domain 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.