Chicago and Seattle are two cities at the forefront of the smart cities movement. This panel is an opportunity to learn about smart city development in these two cities from individuals helping lead the way. Charlie Catlett will discuss the development of Chicago’s Array of Things (AoT). “The Array of Things is a collaborative effort among leading scientists, universities, local government, and communities in Chicago to collect real-time data on the city’s environment, infrastructure, and activity for research and public use.” Ginger Armbruster will discuss Seattle’s various efforts to improve transportation through smart city technology, balancing smart city data uses and privacy interests, and the diversity of issues Seattle faces when given the “size and scope of Seattle’s city departments” that are involved in Seattle’s smart city development.