92 Ill. Adm. Code 544.70
Responsibilities
Section 544
Section 544.70
Responsibilities
a) The Bureau of Traffic has primary responsibility for the
implementation of this Part.
b) The District Engineer is responsible for the communication of
agreements with local agencies under this Part. Further, he is responsible for
the installation, modernization, maintenance, etc., for these traffic signals
as negotiated under the provisions of the agreements with local agencies.