104TH GENERAL ASSEMBLY
State of Illinois
2025 and 2026 SB2112 Introduced 2/7/2025, by Sen. Mike Simmons SYNOPSIS AS INTRODUCED: 625 ILCS 5/11-604 from Ch. 95 1/2, par. 11-604 Amends the Illinois Vehicle Code. Allows a park district, city, village, or incorporated town to decrease the speed limit within an urban district, but not to less than 10 (rather than 20) miles per hour. Allows a park district, city, village, or incorporated town to decrease the speed limit within a residence district, not to less than 15 (rather than 25) miles per hour. Provides that the difference in limit between adjacent altered speed zones shall not be more than 15 (rather than 10) miles per hour. LRB104 09989 LNS 20059 b A BILL FOR 104TH GENERAL ASSEMBLY
State of Illinois
2025 and 2026 SB2112 Introduced 2/7/2025, by Sen. Mike Simmons SYNOPSIS AS INTRODUCED: 625 ILCS 5/11-604 from Ch. 95 1/2, par. 11-604 625 ILCS 5/11-604 from Ch. 95 1/2, par. 11-604 Amends the Illinois Vehicle Code. Allows a park district, city, village, or incorporated town to decrease the speed limit within an urban district, but not to less than 10 (rather than 20) miles per hour. Allows a park district, city, village, or incorporated town to decrease the speed limit within a residence district, not to less than 15 (rather than 25) miles per hour. Provides that the difference in limit between adjacent altered speed zones shall not be more than 15 (rather than 10) miles per hour. LRB104 09989 LNS 20059 b LRB104 09989 LNS 20059 b A BILL FOR
104TH GENERAL ASSEMBLY
State of Illinois
2025 and 2026 SB2112 Introduced 2/7/2025, by Sen. Mike Simmons SYNOPSIS AS INTRODUCED:
625 ILCS 5/11-604 from Ch. 95 1/2, par. 11-604 625 ILCS 5/11-604 from Ch. 95 1/2, par. 11-604
625 ILCS 5/11-604 from Ch. 95 1/2, par. 11-604
Amends the Illinois Vehicle Code. Allows a park district, city, village, or incorporated town to decrease the speed limit within an urban district, but not to less than 10 (rather than 20) miles per hour. Allows a park district, city, village, or incorporated town to decrease the speed limit within a residence district, not to less than 15 (rather than 25) miles per hour. Provides that the difference in limit between adjacent altered speed zones shall not be more than 15 (rather than 10) miles per hour.
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A BILL FOR
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1 AN ACT concerning transportation.
2 Be it enacted by the People of the State of Illinois,
3 represented in the General Assembly:
4 Section 5. The Illinois Vehicle Code is amended by
5 changing Section 11-604 as follows:
6 (625 ILCS 5/11-604) (from Ch. 95 1/2, par. 11-604)
7 Sec. 11-604. Alteration of limits by local authorities.
8 (a) Subject to the limitations set forth in this Section,
9 the county board of a county may establish absolute maximum
10 speed limits on all county highways, township roads and
11 district roads as defined in the Illinois Highway Code, except
12 those under the jurisdiction of the Department or of the
13 Illinois State Toll Highway Authority, as described in
14 Sections 11-602 and 11-603 of this Chapter; and any park
15 district, city, village, or incorporated town may establish
16 absolute maximum speed limits on all streets which are within
17 its corporate limits and which are not under the jurisdiction
18 of the Department or of such Authority, and for which the
19 county or a highway commissioner of such county does not have
20 maintenance responsibility.
21 (b) Whenever any such park district, city, village, or
22 incorporated town determines, upon the basis of an engineering
23 or traffic investigation concerning a highway or street on
104TH GENERAL ASSEMBLY
State of Illinois
2025 and 2026 SB2112 Introduced 2/7/2025, by Sen. Mike Simmons SYNOPSIS AS INTRODUCED:
625 ILCS 5/11-604 from Ch. 95 1/2, par. 11-604 625 ILCS 5/11-604 from Ch. 95 1/2, par. 11-604
625 ILCS 5/11-604 from Ch. 95 1/2, par. 11-604
Amends the Illinois Vehicle Code. Allows a park district, city, village, or incorporated town to decrease the speed limit within an urban district, but not to less than 10 (rather than 20) miles per hour. Allows a park district, city, village, or incorporated town to decrease the speed limit within a residence district, not to less than 15 (rather than 25) miles per hour. Provides that the difference in limit between adjacent altered speed zones shall not be more than 15 (rather than 10) miles per hour.
LRB104 09989 LNS 20059 b LRB104 09989 LNS 20059 b
LRB104 09989 LNS 20059 b
A BILL FOR
625 ILCS 5/11-604 from Ch. 95 1/2, par. 11-604
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1 which it is authorized by this Section to establish speed
2 limits, that a maximum speed limit prescribed in Section
3 11-601 of this Chapter is greater or less than is reasonable or
4 safe with respect to the conditions found to exist at any place
5 or along any part or zone of such highway or street, the local
6 authority or park district shall determine and declare by
7 ordinance a reasonable and safe absolute maximum speed limit
8 at such place or along such part or zone, which:
9 (1) Decreases the limit within an urban district, but
10 not to less than 10 20 miles per hour; or
11 (2) Increases the limit within an urban district, but
12 not to more than 55 miles per hour; or
13 (3) Decreases the limit outside of an urban district,
14 but not to less than 35 miles per hour, except as otherwise
15 provided in subparagraph 4 of this paragraph; or
16 (4) Decreases the limit within a residence district,
17 but not to less than 15 25 miles per hour, except as
18 otherwise provided in subparagraph 1 of this paragraph.
19 The park district, city, village, or incorporated town may
20 make such limit applicable at all times or only during certain
21 specified times. Not more than 6 such alterations shall be
22 made per mile along a highway or street; and the difference in
23 limit between adjacent altered speed zones shall not be more
24 than 15 10 miles per hour.
25 A limit so determined and declared by a park district,
26 city, village, or incorporated town becomes effective, and
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1 suspends the application of the limit prescribed in Section
2 11-601 of this Chapter, when appropriate signs giving notice
3 of the limit are erected at the proper place or along the
4 proper part or zone of the highway or street. Electronic
5 speed-detecting devices shall not be used within 500 feet
6 beyond any such sign in the direction of travel; if so used in
7 violation of this Section evidence obtained thereby shall be
8 inadmissible in any prosecution for speeding. However, nothing
9 in this Section prohibits the use of such electronic
10 speed-detecting devices within 500 feet of a sign within a
11 special school speed zone indicating such zone, conforming to
12 the requirements of Section 11-605 of this Act, nor shall
13 evidence obtained thereby be inadmissible in any prosecution
14 for speeding provided the use of such device shall apply only
15 to the enforcement of the speed limit in such special school
16 speed zone.
17 (c) A county engineer or superintendent of highways may
18 submit to the Department for approval, a county policy for
19 establishing altered speed zones on township and county
20 highways based upon engineering and traffic investigations.
21 (d) Whenever the county board of a county determines that
22 a maximum speed limit is greater or less than is reasonable or
23 safe with respect to the conditions found to exist at any place
24 or along any part or zone of the highway or road, the county
25 board shall determine and declare by ordinance a reasonable
26 and safe absolute maximum speed limit at that place or along
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1 that part or zone. However, the maximum speed limit shall not
2 exceed 55 miles per hour. Upon receipt of an engineering study
3 for the part or zone of highway in question from the county
4 engineer, and notwithstanding any other provision of law, the
5 county board of a county may determine and declare by
6 ordinance a reduction in the maximum speed limit at any place
7 or along any part or zone of a county highway whenever the
8 county board, in its sole discretion, determines that the
9 reduction in the maximum speed limit is reasonable and safe.
10 The county board may post signs designating the new speed
11 limit. The limit becomes effective, and suspends the
12 application of the limit prescribed in Section 11-601 of this
13 Chapter, when appropriate signs giving notice of the limit are
14 erected at the proper place or along the proper part of the
15 zone of the highway. Electronic speed-detecting devices shall
16 not be used within 500 feet beyond any such sign in the
17 direction of travel; if so used in violation of this Section,
18 evidence obtained thereby shall be inadmissible in any
19 prosecution for speeding. However, nothing in this Section
20 prohibits the use of such electronic speed-detecting devices
21 within 500 feet of a sign within a special school speed zone
22 indicating such zone, conforming to the requirements of
23 Section 11-605 of this Act, nor shall evidence obtained
24 thereby be inadmissible in any prosecution for speeding
25 provided the use of such device shall apply only to the
26 enforcement of the speed limit in such special school speed
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