The document outlines the vision and framework for Miami 21, a proposed form-based code that would replace Miami's existing zoning code. The existing code is criticized for focusing on land use separation and permitting processes rather than urban form. Miami 21 aims to improve quality of life, economic vitality, and the public realm through a more predictable, pedestrian-oriented and transit-supportive code based on urban transect zones. It emphasizes community engagement and addresses topics like historic preservation, open space, and sustainable development.