Chicago's Roadmap for Implementing Universal Pre-K is a four-year plan for providing a robust early childhood system that includes universal access to free, full-day pre-kindergarten for all Chicago four-year-olds, regardless of income, by the fall of 2021, while sustaining the City's investment in birth-through-three-year-old services. The City anticipates opening approximately 500 additional pre-k classrooms on a community by community basis over the next three years to serve an additional 7,000 four-year-old Chicagoans. (author abstract)