. "Operational" . . . . . . . . . "Midway Line" . . "Midway Airport" . . . "1993" . . "Orange Line" . "1993-10-31" . . "CTA's Orange Line" . . . "Orange Lines" . . "Orange" . "Orange Line (CTA)" . "CTA Orange Line" . . "16" . . "Orange line" . "Orange Line (CTA)" . . . . "20921.472" .