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(A) The driver of any vehicle shall obey the instructions of any official traffic-control device applicable thereto placed or held in accordance with this chapter, unless otherwise directed by a police officer, subject to the exceptions granted the driver of an authorized emergency vehicle in this title.
(B) It is unlawful for any person to leave the roadway and travel across private property to avoid an official traffic-control device.
(C) No provision of this title, for which official traffic-control devices are required, shall be enforced against an alleged violator if at the time and place of the alleged violation an official device is not in proper position and sufficiently legible to be seen by an ordinarily observant person. Whenever a particular section does not state that official traffic-control devices are required, the section shall be effective even though no devices are erected or in place.
(D) Whenever any official traffic-control device is placed or held in position approximately conforming to the requirements of this title and purports to conform to the lawful requirements pertaining to such device, the device shall be presumed to have been so placed or held by the official act or direction of lawful authority, and comply with the requirements of this title, unless the contrary shall be established by competent evidence.
(E) The driver of a vehicle approaching a traffic-control signal on which no signal light facing the vehicle is illuminated shall stop before entering the intersection, in accordance with rules applicable in making a stop at a stop sign.
(F) Any violation of division (A) of this section that occurs within a designated highway construction zone or maintenance zone shall result in a fine of no less than $100 and no more than $1,000.
(ILCS Ch. 625, Act 5, § 11-305) Penalty, see § 70.99