Plate 75 from The Plan of Chicago, 1909: Chicago. Diagram of the City, Showing Complete System of Inner Circuits 1909

Daniel Hudson Burnham's 1909 "Plate 75 from The Plan of Chicago, 1909: Chicago. Diagram of the City, Showing Complete System of Inner Circuits" is a detailed plan of Chicago’s proposed transportation system. This architectural drawing, now at the Art Institute of Chicago, utilizes colored lines to represent different types of transit lines: passenger subways, freight railroads, and elevated railroads. Burnham, known for his influential role in Chicago's urban planning, envisioned a city with efficient and integrated transportation infrastructure. This drawing serves as a historical document, showcasing the City Beautiful Movement's emphasis on order and functionality in urban design.