The light rail system used to move passengers around O'Hare International Airport is shutting down until next fall.
The Chicago Tribune reports the "Automated Transportation Service" previously operated only on weekends since the spring. Starting today, service will be fully suspended and passengers will need to use shuttle buses to get between terminals and the outlying parking lots.
The shutdown is aimed at upgrading the 25-year old system. New people movers would have more cars and double the current system's capacity.