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(A) The driver of any vehicle shall obey the instructions of any official traffic-control device applicable thereto placed 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 official traffic-control devices are placed in position approximately conforming to the requirements of this title, the devices shall be presumed to have been so placed by the official act or direction of lawful authority, unless the contrary shall be established by competent evidence.
(E) Any official traffic-control devices placed pursuant to the provisions of this title, and purporting to conform to the lawful requirements pertaining to them, shall be presumed to comply with the requirements of this title, unless the contrary shall be established by competent evidence.
(F) 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.
(‘64 Code, § 21-33, § 21-70) Penalty, see § 70.999
For similar provisions under state law, see ILCS Ch. 625, Act 5, § 11-305