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Illinois Compiled Statutes
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VEHICLES (625 ILCS 5/) Illinois Vehicle Code. 625 ILCS 5/Ch. 11 Art. VI
(625 ILCS 5/Ch. 11 Art. VI heading)
ARTICLE VI.
SPEED RESTRICTIONS
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625 ILCS 5/11-601
(625 ILCS 5/11-601) (from Ch. 95 1/2, par. 11-601)
Sec. 11-601. General speed restrictions.
(a) No vehicle may be driven upon any highway of this State at a speed
which is greater than is reasonable and proper with regard to traffic
conditions and the use of the highway, or endangers the safety of any
person or property. The fact that the speed of a vehicle does not exceed
the applicable maximum speed limit does not relieve the driver from the
duty to decrease speed when approaching and crossing an intersection,
approaching and going around a curve, when approaching a hill crest, when
traveling upon any narrow or winding roadway, or when special hazard exists
with respect to pedestrians or other traffic or by reason of weather or
highway conditions. Speed must be decreased as may be necessary to avoid
colliding with any person or vehicle on or entering the highway in
compliance with legal requirements and the duty of all persons to use due
care.
(a-5) For purposes of this Section, "urban district" does not include any interstate highway as defined by Section 1-133.1 of this Code which includes all highways under the jurisdiction of the Illinois State Toll Highway Authority. (b) No person may drive a vehicle upon any highway of this State at a
speed which is greater than the applicable statutory maximum speed limit
established by paragraphs (c), (d), (e), (f) or (g) of this Section, by
Section 11-605 or by a regulation or ordinance made under this Chapter.
(c) Unless some other speed restriction is established under this
Chapter, the maximum speed limit in an urban district for all vehicles is:
1. 30 miles per hour; and
2. 15 miles per hour in an alley.
(d) Unless some other speed restriction is established under this Chapter,
the maximum speed limit outside an urban district for any vehicle is (1) 65 miles per hour for all or part of highways that are designated by
the Department, have at least 4 lanes of traffic, and have a separation between
the roadways moving in opposite directions and (2) 55 miles per hour for all
other highways, roads, and streets.
(d-1) Unless some other speed restriction is established under this Chapter,
the maximum speed limit outside an urban district for any vehicle is (1) 70 miles per hour on any interstate highway as defined by Section 1-133.1 of this Code which includes all highways under the jurisdiction of the Illinois State Toll Highway Authority; (2) 65 miles per hour for all or part of highways that are designated by the Department, have at least 4 lanes of traffic, and have a separation between the roadways moving in opposite directions; and (3) 55 miles per hour for all other highways, roads, and streets. The counties of Cook, DuPage, Kane, Lake, Madison, McHenry, St. Clair, and Will may adopt ordinances setting a maximum speed limit on highways, roads, and streets that is lower than the limits established by this Section. (e) In the counties of Cook, DuPage, Kane, Lake, McHenry, and Will, unless some lesser speed restriction is established under
this
Chapter, the maximum speed limit outside an urban district for a second
division vehicle designed or used for the carrying of a gross weight of
8,001 pounds or more (including the weight of the vehicle and
maximum load) is 60 miles per hour on any interstate highway as defined by Section 1-133.1 of this Code and
55 miles per hour on all other highways, roads, and streets.
(e-1) (Blank). (f) Unless some other speed restriction is established under this Chapter,
the maximum speed limit outside an urban district for a bus is:
1. 65 miles per hour upon any highway which has at | | least 4 lanes of traffic and of which the roadways for traffic moving in opposite directions are separated by a strip of ground which is not surfaced or suitable for vehicular traffic, except that the maximum speed limit for a bus on all highways, roads, or streets not under the jurisdiction of the Department or the Illinois State Toll Highway Authority is 55 miles per hour;
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1.5. 70 miles per hour upon any interstate highway as
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| 2. 55 miles per hour on any other highway.
(g) (Blank).
(Source: P.A. 98-511, eff. 1-1-14; 98-1126, eff. 1-1-15; 98-1128, eff. 1-1-15; 99-78, eff. 7-20-15.)
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625 ILCS 5/11-601.5
(625 ILCS 5/11-601.5)
Sec. 11-601.5. Driving 26 miles per hour or more in excess of
applicable limit. (a) A person who drives a vehicle upon any highway of
this State at a speed that is 26 miles per hour or more but less than 35 miles per hour in excess of
the applicable maximum speed limit established under this Chapter or a
local ordinance commits a Class B misdemeanor. (b) A person who drives a vehicle upon any highway of
this State at a speed that is 35 miles per hour or more in excess of
the applicable maximum speed limit established under this Chapter or a
local ordinance commits a Class A misdemeanor.
(Source: P.A. 98-511, eff. 1-1-14.)
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625 ILCS 5/11-602 (625 ILCS 5/11-602) (from Ch. 95 1/2, par. 11-602)
Sec. 11-602. Alteration of limits by Department. Whenever the Department
determines,
upon the basis of an engineering and traffic investigation concerning any
highway for which the Department has maintenance responsibility, that a
maximum speed limit prescribed in Section 11-601 of this Chapter is greater
or less than is reasonable or safe with respect to the conditions found
to exist at any intersection or other place on such highway or along any
part or zone thereof, the Department shall determine and declare a reasonable
and safe absolute maximum speed limit applicable to such intersection or
place, or along such part or zone. However, such limit shall conform with the maximum speed limit restrictions provided for in Section 11-601 of this Code. Where
a highway under the Department's jurisdiction
is contiguous to school property, the Department may, at the school district's
request, set a
reduced maximum speed limit for student safety purposes in the portion of the
highway that faces the school property and in the portions of the highway that
extend
one-quarter mile in each direction from the opposite ends of the school
property. A limit determined and
declared as provided in this Section becomes effective, and suspends the
applicability of the limit
prescribed
in Section 11-601 of this Chapter, when appropriate signs giving notice
of the limit are erected at such intersection or other
place, or along such part or zone of the highway. Electronic
speed-detecting devices shall not be used within 500 feet beyond any such
sign in the direction of travel; if so used in violation hereof, evidence
obtained thereby shall be inadmissible in any prosecution for speeding.
However, nothing in this Section prohibits the use of such electronic
speed-detecting devices within 500 feet of a sign within a special
school speed zone indicating such zone, conforming to the requirements of
Section 11-605 of this Act, nor shall evidence obtained thereby be
inadmissible in any prosecution for speeding provided the use of such
device shall apply only to the enforcement of the speed limit in such
special school speed zone.
(Source: P.A. 98-511, eff. 1-1-14.)
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625 ILCS 5/11-603
(625 ILCS 5/11-603) (from Ch. 95 1/2, par. 11-603)
Sec. 11-603. Alteration of limits by Toll Highway Authority.
Whenever the Illinois State Toll Highway Authority
determines, upon the basis of an
engineering and traffic investigation concerning a toll highway under its
jurisdiction, that a maximum speed limit prescribed in Section 11-601 of
this Chapter is greater or less than is reasonable or safe with respect to
conditions found to exist at any place or along any part or zone of such
highway, the Authority shall determine and declare by regulation a
reasonable and safe absolute maximum speed limit at such place or along
such part or zone, and the speed limit shall conform with the maximum speed limit restrictions provided for in Section 11-601 of this Code. A limit so determined
and declared becomes effective, and suspends the application of the limit
prescribed in Section 11-601 of this Chapter, when (a) the Department
concurs in writing with the Authority's regulation, and (b) appropriate
signs giving notice of the limit are erected at such place or along such
part or zone of the highway. Electronic speed-detecting devices shall not
be used within 500 feet beyond any such sign in the direction of travel; if
so used in violation hereof, evidence obtained thereby shall be
inadmissible in any prosecution for speeding.
(Source: P.A. 98-511, eff. 1-1-14.)
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