Any official traffic control device other than a railroad sign or signal, whether manually, electrically or mechanically operated, by which traffic is alternately directed to stop and permitted to proceed.
625 ILCS 5/1-208
Any official traffic control device other than a railroad sign or signal, whether manually, electrically or mechanically operated, by which traffic is alternately directed to stop and permitted to proceed.
625 ILCS 5/1-208