Urban transportation is a field of study that focuses on the planning, design, operation, and management of transportation systems within urban areas. This includes understanding the movement of people and goods through various modes of transportation, such as cars, buses, trains, bikes, and walking, as well as the infrastructure and policies that support these modes. Researchers in this area may study issues such as traffic congestion, public transit efficiency, environmental sustainability, and the impact of transportation on urban development and quality of life. They work to develop innovative solutions to improve the efficiency, accessibility, and safety of urban transportation systems.