Global City Teams Challenge Expo (IMAGE) U.S. National Science Foundation Caption Researchers and students from MIT showcase a model of a smart, autonomous tricycle at the Global City Teams Challenge Expo in Washington, D.C. The team is working to build such a bike to serve as a courier for packages, as well as people. This technology is helping to envision what is possible for smart and connected cities and communities for the future. Credit NSF 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.