# Illinois SB1559: IDOT-TRAFFIC STUDIES Illinois SB1559, IDOT-TRAFFIC STUDIES, is a 104th General Assembly (2025–2026) Senate bill sponsored by Sara Feigenholtz (Democratic); status signed, last action 2025-08-01 (Public Act . . . . . . . . . 104-0110) (as of 2026-11-01). - Canonical: https://policyrisk.com/state-bill/IL-SB1559-2025-2026 - As of: 2026-11-01 - Plain-text twin of the page above; the HTML and this file carry the same facts. ## Facts - Bill: Illinois SB1559 - State: Illinois - Session: 104th General Assembly (2025–2026) - Title: IDOT-TRAFFIC STUDIES - Status: signed - Chamber: Senate - Introduced: 2025-02-04 - Last action: 2025-08-01, Public Act . . . . . . . . . 104-0110 - Sponsor: Sara Feigenholtz (Democratic) - Cosponsors: 12 - Subjects: assignments, transportation, transportation: vehicles & safety - Touches household money: no - Roll calls: 5 (209 yes, 0 no in all) - Economic provisions PRIA read: 0 ## Summary Amends the Department of Transportation Law of the Civil Administrative Code of Illinois. Requires the Department of Transportation to conduct a traffic study following the occurrence of any crash involving a pedestrian fatality that occurs at an intersection of a federal or municipal highway. ## Bill overview No economic impacts identified for this bill. ## Sponsors and cosponsors - Sponsor: Sara Feigenholtz (Democratic), Senate - Cosponsor: Ann M. Williams (Democratic), House - Cosponsor: Anne Stava (Democratic), House - Cosponsor: Bradley Fritts (Republican), House - Cosponsor: Jaime M. Andrade, Jr. (Democratic), House - Cosponsor: Kelly M. Cassidy (Democratic), House - Cosponsor: Margaret Croke (Democratic), House - Cosponsor: Martha Deuter (Democratic), House - Cosponsor: Matt Hanson (Democratic), House - Cosponsor: Michael J. Coffey, Jr. (Republican), House - Cosponsor: Theresa Mah (Democratic), House - Cosponsor: Wayne A. Rosenthal (Republican), House - Cosponsor: Will Guzzardi (Democratic), House ## Roll call votes | Date | Chamber | Motion | Result | Yes | No | Other | | --- | --- | --- | --- | --- | --- | --- | | 2025-05-21 | House | Third Reading - Short Debate - Passed | pass | 111 | 0 | | | 2025-04-30 | House | Do Pass / Short Debate Transportation: Vehicles & Safety; | pass | 12 | 0 | | | 2025-04-11 | Senate | Third Reading - Passed; | pass | 52 | 0 | | | 2025-04-08 | Senate | Senate Floor Amendment No. 2 Recommend Do Adopt Transportation; | pass | 19 | 0 | | | 2025-03-19 | Senate | Do Pass as Amended Transportation; | pass | 15 | 0 | | ## Actions (45) - 2025-08-01: Public Act . . . . . . . . . 104-0110 (Senate) - 2025-08-01: Effective Date January 1, 2026 (Senate) - 2025-08-01: Governor Approved (Senate) - 2025-06-18: Sent to the Governor (Senate) - 2025-05-21: Added Alternate Co-Sponsor Rep. Kelly M. Cassidy (House) - 2025-05-21: Passed Both Houses (Senate) - 2025-05-21: Third Reading - Short Debate - Passed 111-000-000 (House) - 2025-05-20: Added Alternate Co-Sponsor Rep. Anne Stava (House) - 2025-05-16: Placed on Calendar Order of 3rd Reading - Short Debate (House) - 2025-05-16: Second Reading - Short Debate (House) - 2025-05-09: Added Alternate Co-Sponsor Rep. Wayne A. Rosenthal (House) - 2025-05-09: Added Alternate Co-Sponsor Rep. Michael J. Coffey, Jr. (House) - 2025-05-09: Added Alternate Co-Sponsor Rep. Theresa Mah (House) - 2025-05-09: Added Alternate Co-Sponsor Rep. Will Guzzardi (House) - 2025-05-08: Added Alternate Co-Sponsor Rep. Martha Deuter (House) - 2025-04-30: Added Alternate Chief Co-Sponsor Rep. Bradley Fritts (House) - 2025-04-30: Added Alternate Chief Co-Sponsor Rep. Margaret Croke (House) - 2025-04-30: Added Alternate Chief Co-Sponsor Rep. Matt Hanson (House) - 2025-04-30: Added Alternate Chief Co-Sponsor Rep. Jaime M. Andrade, Jr. (House) - 2025-04-30: Placed on Calendar 2nd Reading - Short Debate (House) - 2025-04-30: Do Pass / Short Debate Transportation: Vehicles & Safety; 012-000-000 (House) - 2025-04-17: Assigned to Transportation: Vehicles & Safety (House) - 2025-04-11: Referred to Rules Committee (House) - 2025-04-11: First Reading (House) - 2025-04-11: Chief House Sponsor Rep. Ann M. Williams (House) - 2025-04-11: Arrived in House (House) - 2025-04-11: Third Reading - Passed; 052-000-000 (Senate) - 2025-04-10: Placed on Calendar Order of 3rd Reading April 11, 2025 (Senate) - 2025-04-10: Senate Floor Amendment No. 2 Adopted; Feigenholtz (Senate) - 2025-04-10: Second Reading (Senate) - 2025-04-08: Senate Floor Amendment No. 2 Recommend Do Adopt Transportation; 019-000-000 (Senate) - 2025-04-08: Senate Floor Amendment No. 2 Assignments Refers to Transportation (Senate) - 2025-04-03: Senate Floor Amendment No. 2 Referred to Assignments (Senate) - 2025-04-03: Senate Floor Amendment No. 2 Filed with Secretary by Sen. Sara Feigenholtz (Senate) - 2025-03-19: Placed on Calendar Order of 2nd Reading March 20, 2025 (Senate) - 2025-03-19: Do Pass as Amended Transportation; 015-000-000 (Senate) - 2025-03-18: Senate Committee Amendment No. 1 Adopted (Senate) - 2025-03-18: Senate Committee Amendment No. 1 Assignments Refers to Transportation (Senate) - 2025-03-14: Senate Committee Amendment No. 1 Referred to Assignments (Senate) - 2025-03-14: Senate Committee Amendment No. 1 Filed with Secretary by Sen. Sara Feigenholtz (Senate) - 2025-03-05: Postponed - Transportation (Senate) - 2025-02-11: Assigned to Transportation (Senate) - 2025-02-04: Referred to Assignments (Senate) - 2025-02-04: First Reading (Senate) - 2025-02-04: Filed with Secretary by Sen. Sara Feigenholtz (Senate) ## Bill text - Engrossed: [PDF](https://www.ilga.gov/documents/legislation/104/SB/PDF/10400SB1559eng.pdf) - Enrolled: [PDF](https://www.ilga.gov/documents/legislation/104/SB/PDF/10400SB1559enr.pdf) - Introduced: [PDF](https://www.ilga.gov/documents/legislation/104/SB/PDF/10400SB1559.pdf) - Senate Amendment 1: [PDF](https://www.ilga.gov/documents/legislation/104/SB/PDF/10400SB1559sam001.pdf) - Senate Amendment 2: [PDF](https://www.ilga.gov/documents/legislation/104/SB/PDF/10400SB1559sam002.pdf) ## Related bills - HB5198: AFFORDABLE HOUSING-CILAS (passed house) - SB1937: PENSION CODE-VARIOUS (passed senate) - HB2563: CONDO-RESERVE STUDY (in committee) - HB4701: LIMITATIONS FACILITY FEES ACT (in committee) - SB3008: DHS-ABLE PROGRAM INFO MATERIAL (passed senate) - SB3484: VEH CD-PLATES-REGISTRATION (signed) ## Sources - [Engrossed (PDF)](https://www.ilga.gov/documents/legislation/104/SB/PDF/10400SB1559eng.pdf) - [Enrolled (PDF)](https://www.ilga.gov/documents/legislation/104/SB/PDF/10400SB1559enr.pdf) - [Introduced (PDF)](https://www.ilga.gov/documents/legislation/104/SB/PDF/10400SB1559.pdf) - [Senate Amendment 1 (PDF)](https://www.ilga.gov/documents/legislation/104/SB/PDF/10400SB1559sam001.pdf) - [Senate Amendment 2 (PDF)](https://www.ilga.gov/documents/legislation/104/SB/PDF/10400SB1559sam002.pdf) ## Related - [HB5198: AFFORDABLE HOUSING-CILAS](https://policyrisk.com/state-bill/IL-HB5198-2025-2026) - [SB1937: PENSION CODE-VARIOUS](https://policyrisk.com/state-bill/IL-SB1937-2025-2026) - [HB2563: CONDO-RESERVE STUDY](https://policyrisk.com/state-bill/IL-HB2563-2025-2026) - [HB4701: LIMITATIONS FACILITY FEES ACT](https://policyrisk.com/state-bill/IL-HB4701-2025-2026) - [SB3008: DHS-ABLE PROGRAM INFO MATERIAL](https://policyrisk.com/state-bill/IL-SB3008-2025-2026) - [SB3484: VEH CD-PLATES-REGISTRATION](https://policyrisk.com/state-bill/IL-SB3484-2025-2026) - [Illinois bills](https://policyrisk.com/states/illinois/bills) - [Illinois state hub](https://policyrisk.com/states/illinois) - [All state legislation](https://policyrisk.com/state-bills) Source: PRIA, https://policyrisk.com/state-bill/IL-SB1559-2025-2026 (as of 2026-11-01).