92 Ill. Adm. Code 562.10
Freeway Determination
Section 562
Section 562.10 Freeway
Determination
a) The Department of Transportation determines what highways
shall be declared freeways.
b) The Chief Highway Engineer shall make a study of the traffic
volumes and the traffic conditions with respect to the safety of the traveling
public on the State highways. From time to time, as conditions warrant, he
shall make a report of his studies and investigations to the Secretary of the
Department of Transportation with recommendations that certain State highways
be declared freeways. Such recommendations shall specify the highways or
portions thereof that shall be designated as freeways.
c) The Secretary shall review these reports and recommendations
and after careful study and consideration he shall declare in writing which of
the said highways or portions thereof are designated as freeways.