Our health is very much shaped by the structure of the spaces around us, what we often refer to as our built environment. The concept of the built environment was developed for fields of urban planning and architecture, and includes any aspects of our spaces that influence human activity, from density of homes and buildings, access to transportation options and community spaces, and the streets and sidewalks, or the lack thereof. The built environment is also highly relevant to public health. The structure of spaces around us will impact whether or not we elect to commute by automobile, public transit, or walking or riding a bicycle; it can impact selection of the foods we eat, proximity to health services, and, thereby, has greater impacts on equity, by driving housing prices and access to resources. Hosts Bryan James and Ghassan Hamra chat with Steve Mooney, assistant professor at University of Washington – Seattle about how our built environment shapes our transportation and pedestrian decisions.