There were persistent changes in the blueprints between 1931 and 1932, indicating the involvement of an architect outside the firm's regular staff, like Paul Philippe Cret, employed as an aesthetic advisor. He is attributed with the terminal's Art Deco design due to his similar-style designs of other buildings at the time. His submission of a plan for the Chrysler Exhibition Building, in the 1933 Century of Progress world's fair, has numerous similarities to the terminal's final plan and design.