Columbia subject headings:
Harvard subject headings:
Chicago (Ill.)--History--20th century.
Cities and towns--Illinois--Chicago--History--20th century.
City planning--Illinois--Chicago--History--20th century.
Roads--Illinois--Chicago--History--20th century.
Sociology, Urban--Illinois--Chicago--History--20th century.
Traffic regulations--Illinois--Chicago--History--20th century.
Transportation--Illinois--Chicago--History--20th century.
Princeton subject headings:
City planning--Illinois--Chicago.
Communication and traffic--Illinois--Chicago.
Public spaces--Illinois--Chicago.
Street life--Illinois--Chicago.
Streets--Illinois--Chicago.
Streets--Social aspects--Illinois--Chicago.