Based on the design of an award-winning subway station entrance in 1996, the Chicago Department of Transportation commissioned a prototype for other stations in the Loop. Ironically, the jury celebrated the architect’s attempt to challenge the very notion of "prototypes," creating an entrance that could be site specific. The stainless steel sheathed roof twists and curves to become the street-side wall. Granite-clad knee walls break free of the rigid geometry of the sidewalk grid and take on a separate form. Sloped glass spans the widening gap between the "roof" and "walls," drawing light and riders in.