Dr. Steve Dellenback (IMAGE) Southwest Research Institute Caption Southwest Research Institute’s Dr. Steve Dellenback will join the U.S. Department of Transportation’s Transforming Transportation Advisory Committee (TTAC). Credit Southwest Research Institute Usage Restrictions Images/Videos may be used by the public for educational and informational purposes only. 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.