(625 ILCS 5/11-701)
(from Ch. 95 1/2, par. 11-701)
Drive on right side of roadway - exceptions.
(a) Upon all roadways of sufficient width a vehicle shall be driven upon
the right half of the roadway, except as follows:
1. When overtaking and passing another vehicle
proceeding in the same direction under the rules governing such movements;
2. When an obstruction exists making it necessary to
drive to the left of the center of the roadway; provided, any person so doing shall yield the right-of-way to all vehicles traveling in the proper direction upon the unobstructed portion of the roadway within such distance as to constitute an immediate hazard;
3. Upon a roadway divided into 3 marked lanes for
traffic under the rules applicable thereon;
4. Upon a roadway restricted to one way traffic;
5. Whenever there is a single track paved road on one
side of the public highway and 2 vehicles meet thereon, the driver on whose right is the wider shoulder shall give the right-of-way on such pavement to the other vehicle.
(b) Upon a 2 lane roadway, providing for 2-way
movement of traffic, a vehicle shall be driven in the right-hand lane available
for traffic, or
as close as practicable to the right hand curb or edge of the roadway,
except when overtaking and passing another vehicle proceeding in the same
direction or when preparing for a left turn at an intersection or into a
private road or driveway.
(c) Upon any roadway having 4 or more lanes for moving traffic and
providing for 2-way movement of traffic, no vehicle shall be driven to the
left of the center line of the roadway, except when authorized by official
traffic-control devices designating certain lanes to the left side of the
center of the roadway for use by traffic not otherwise permitted to use
such lanes, or except as permitted under Subsection (a) 2. However, this
Subsection shall not be construed as prohibiting the crossing of the center
line in making a left turn into or from an alley, private road or driveway.
(d) Upon an Interstate highway or fully access controlled freeway,
a vehicle may not be driven in the left lane, except when overtaking
and passing another vehicle.
(e) Subsection (d) of this Section does not apply:
(1) when no other vehicle is directly behind the
vehicle in the left lane;
(2) when traffic conditions and congestion make it
impractical to drive in the right lane;
(3) when snow and other inclement weather conditions
make it necessary to drive in the left lane;
(4) when obstructions or hazards exist in the right
(5) when a vehicle changes lanes to comply with
Sections 11-907, 11-907.5, and 11-908 of this Code;
(6) when, because of highway design, a vehicle must
be driven in the left lane when preparing to exit;
(7) on toll highways when necessary to use I-Pass,
and on toll and other highways when driving in the left lane is required to comply with an official traffic control device; or
(8) to law enforcement vehicles, ambulances, and
other emergency vehicles engaged in official duties and vehicles engaged in highway maintenance and construction operations.
(Source: P.A. 99-681, eff. 1-1-17
(625 ILCS 5/11-703)
(from Ch. 95 1/2, par. 11-703)
Overtaking a vehicle on the left.
The following rules govern the overtaking and passing of vehicles
proceeding in the same direction, subject to those limitations, exceptions,
and special rules otherwise stated in this Chapter:
(a) The driver of a vehicle overtaking another
vehicle proceeding in the same direction shall pass to the left thereof at a safe distance and shall not again drive to the right side of the roadway until safely clear of the overtaken vehicle. In no event shall such movement be made by driving off the pavement or the main traveled portion of the roadway.
(b) Except when overtaking and passing on the right
is permitted, the driver of an overtaken vehicle shall give way to the right in favor of the overtaking vehicle on audible signal and shall not increase the speed of his vehicle until completely passed by the overtaking vehicle.
(c) The driver of a 2 wheeled vehicle may not, in
passing upon the left of any vehicle proceeding in the same direction, pass upon the right of any vehicle proceeding in the same direction unless there is an unobstructed lane of traffic available to permit such passing maneuver safely.
(d) The operator of a motor vehicle overtaking a
bicycle or individual proceeding in the same direction on a highway shall leave a safe distance, but not less than 3 feet, when passing the bicycle or individual and shall maintain that distance until safely past the overtaken bicycle or individual.
(d-5) A driver of a motor vehicle overtaking a
bicycle proceeding in the same direction on a highway may, subject to the provisions in paragraph (d) of this Section and Section 11-706 of this Code, pass to the left of the bicycle on a portion of the highway designated as a no-passing zone under Section 11-707 of this Code if the driver is able to overtake and pass the bicycle when:
(1) the bicycle is traveling at a speed of less
than half of the posted speed limit of the highway;
(2) the driver is able to overtake and pass the
bicycle without exceeding the posted speed limit of the highway; and
(3) there is sufficient distance to the left of
the centerline of the highway for the motor vehicle to meet the overtaking and passing requirements under this Section.
(e) A person driving a motor vehicle shall not, in a
reckless manner, drive the motor vehicle unnecessarily close to, toward, or near a bicyclist, pedestrian, or a person riding a horse or driving an animal drawn vehicle.
(f) Every person convicted of paragraph (e) of this
Section shall be guilty of a Class A misdemeanor if the violation does not result in great bodily harm or permanent disability or disfigurement to another. If the violation results in great bodily harm or permanent disability or disfigurement to another, the person shall be guilty of a Class 3 felony.
(Source: P.A. 100-359, eff. 1-1-18
(625 ILCS 5/11-704)
(from Ch. 95 1/2, par. 11-704)
When overtaking on the right is permitted.
(a) The driver of a vehicle with 3 or more wheels may overtake and pass
upon the right of another vehicle only under the following conditions:
1. When the vehicle overtaken is making or about to
2. Upon a roadway with unobstructed pavement of
sufficient width for 2 or more lines of vehicles moving lawfully in the direction being traveled by the overtaking vehicle.
3. Upon a one-way street, or upon any roadway on
which traffic is restricted to one direction of movement, where the roadway is free from obstructions and of sufficient width for 2 or more lines of moving vehicles.
(b) The driver of a 2-wheeled vehicle may not pass upon the right of any
other vehicle proceeding in the same direction unless the unobstructed
pavement to the right of the vehicle being passed is of a width of not less
than 8 feet. This subsection does not apply to devices propelled by human power.
(c) The driver of a vehicle may overtake and pass another vehicle upon
the right only under conditions permitting such movement in safety. Such
movement shall not be made by driving off the roadway.
(Source: P.A. 102-558, eff. 8-20-21.)
(625 ILCS 5/11-708)
(from Ch. 95 1/2, par. 11-708)
One-way roadways and rotary traffic islands.
(a) The Department and local authorities, with respect to highways under
their respective jurisdictions, may designate any highway, roadway, part of
a roadway or specific lanes upon which vehicular traffic shall proceed in
one direction at all or such times as shall be indicated by official
traffic control devices.
(b) Upon a roadway so designated for one-way traffic, a vehicle shall be
driven only in the direction designated at all or such times as shall be
indicated by official traffic control devices.
(c) A vehicle passing around a rotary traffic island must be driven only
to the right of such island.
(d) Whenever any highway has been divided into 2 or more roadways by
leaving an intervening space or by a physical barrier or a clearly
indicated dividing section so constructed as to impede vehicular traffic,
every vehicle must be driven only upon the right-hand roadway unless
directed or permitted to use another roadway by official traffic-control
devices or police officers. No vehicle may be driven over, across, or
within any such dividing space, barrier, or section, except through an
opening in the physical barrier, or dividing section, or space, or at a
cross-over or intersection as established by public authority.
(e) The driver of a vehicle may turn left across a paved noncurbed
dividing space unless prohibited by an official traffic-control device.
(Source: P.A. 84-873.)