110 ILCS 80/1
Each highway commissioner and each county engineer or superintendent of highways may severally or jointly as the case may require, in respect to public roads and streets under their respective jurisdictions, enter into agreements with the governing bodies of universities and colleges of higher education supported in whole or in part by funds raised by public taxation, providing for the transfer of jurisdiction and control to the governing body over such public roads and streets, or portions thereof, which adjoin or which are or may be used as access roads to airports owned by the educational institution.
Upon such transfer and for the duration of the agreement, the educational institution shall assume exclusive jurisdiction of the roads and streets, or portions thereof, as designated in the agreement, for the purpose of traffic regulation and control, and the policing thereof. The agreement may also provide that the responsibility for the maintenance and repair of such roads shall be vested in the educational institution.
110 ILCS 80/1