Inspired by Iowa City’s success with free public transit leading to cleared traffic and improved air quality, TransitFlow is a data analytics platform for municipalities. It helps cities understand the impact of their public transportation policies on traffic congestion, air quality, and citizen well-being. The platform integrates data from traffic sensors, public transit usage, air quality monitors, and citizen feedback to provide actionable insights and predictive modeling for optimizing transit routes, schedules, and fare structures to encourage greater adoption and achieve environmental and urban planning goals.