625 ILCS 5/11-908: Vehicle approaching or entering a highway construction or maintenance area or zone.

(a) The driver of a vehicle shall yield the right-of-way to any authorized vehicle or pedestrian actually engaged in work upon a highway within any highway construction or maintenance area indicated by official traffic-control devices.

(a-1) Upon entering a construction or maintenance zone when workers are present, a person who drives a vehicle shall:

(1) proceeding with due caution, yield the right-of-way by making a lane change into a lane not adjacent to that of the workers present, if possible with due regard to safety and traffic conditions, if on a highway having at least 4 lanes with not less than 2 lanes proceeding in the same direction as the approaching vehicle, and reduce the speed of the vehicle to a speed that is reasonable and proper with regard to traffic conditions and the use of the highway to avoid a collision and leaving a safe distance until safely past the construction or maintenance zone; or

(2) proceeding with due caution, reduce the speed of the vehicle to a speed that is reasonable and proper with regard to traffic conditions and the use of the highway to avoid a collision until safely past the construction or maintenance zone, maintaining a safe speed for road conditions, if changing lanes would be impossible or unsafe.

(a-2) A person who violates subsection (a-1) of this Section commits a business offense punishable by a fine of not less than $100 and not more than $25,000. It is a factor in aggravation if the person committed the offense while in violation of Section 11-501 of this Code.

(a-3) If a violation of subsection (a-1) of this Section results in damage to the property of another person, in addition to any other penalty imposed, the person's driving privileges shall be suspended for a fixed period of not less than 90 days and not more than one year.

(a-4) If a violation of subsection (a-1) of this Section results in injury to another person, in addition to any other penalty imposed, the person's driving privileges shall be suspended for a fixed period of not less than 180 days and not more than 2 years.

(a-5) If a violation of subsection (a-1) of this Section results in the death of another person, in addition to any other penalty imposed, the person's driving privileges shall be suspended for 2 years.

(a-6) The Secretary of State shall, upon receiving a record of a judgment entered against a person under subsection (a-1) of this Section:

(1) suspend the person's driving privileges for the mandatory period; or

(2) extend the period of an existing suspension by the appropriate mandatory period.

(b) The driver of a vehicle shall yield the right-of-way to any authorized vehicle obviously and actually engaged in work upon a highway whenever the vehicle engaged in construction or maintenance work displays flashing lights as provided in Section 12-215 of this Act.

(c) The driver of a vehicle shall stop if signaled to do so by a flagger or a traffic control signal and remain in such position until signaled to proceed. If a driver of a vehicle fails to stop when signaled to do so by a flagger, the flagger is authorized to report such offense to the State's Attorney or authorized prosecutor. The penalties imposed for a violation of this subsection (c) shall be in addition to any penalties imposed for a violation of subsection (a-1).