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ILLINOIS 

2022 ANNUAL REPORT 

Disclaimer: This report is the property of the State Department of Transportation (State DOT). The State DOT 

completes the report by entering applicable information into the Federal Highway Administration’s (FHWA) Highway 

Safety Improvement Program (HSIP) online reporting tool. Once the State DOT completes the report pertaining to its 

State, it coordinates with its respective FHWA Division Office to ensure the report meets all legislative and regulatory 

requirements. FHWA’s Headquarters Office of Safety then downloads the State’s finalized report and posts it to the 

website (https://highways.dot.gov/safety/hsip/reporting) as required by law (23 U.S.C. 148(h)(3)(A)). 
2022 Illinois Highway Safety Improvement Program

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Table of Contents

Disclaimer .............................................................................................................................................3

Protection of Data from Discovery Admission into Evidence .............................................................3

Executive Summary ..............................................................................................................................4

Introduction ...........................................................................................................................................5

Program Structure ................................................................................................................................. 5

Program Administration .....................................................................................................................5

Program Methodology .......................................................................................................................7

Project Implementation .......................................................................................................................16

Funds Programmed .........................................................................................................................16

General Listing of Projects ..............................................................................................................18

Safety Performance ............................................................................................................................24

General Highway Safety Trends ......................................................................................................24

Safety Performance Targets............................................................................................................29

Applicability of Special Rules ...........................................................................................................31

Evaluation ...........................................................................................................................................32

Program Effectiveness ....................................................................................................................32

Effectiveness of Groupings or Similar Types of Improvements .......................................................32

Project Effectiveness.......................................................................................................................36

Compliance Assessment ....................................................................................................................37

Optional Attachments ..........................................................................................................................40

Glossary ..............................................................................................................................................41
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Disclaimer

Protection of Data from Discovery Admission into Evidence 

23 U.S.C. 148(h)(4) states “Notwithstanding any other provision of law, reports, surveys, schedules, lists, or 

data compiled or collected for any purpose relating to this section[HSIP], shall not be subject to discovery or 

admitted into evidence in a Federal or State court proceeding or considered for other purposes in any action 

for damages arising from any occurrence at a location identified or addressed in the reports, surveys, 

schedules, lists, or other data.” 

23 U.S.C. 407 states “Notwithstanding any other provision of law, reports, surveys, schedules, lists, or data 

compiled or collected for the purpose of identifying, evaluating, or planning the safety enhancement of potential 

accident sites, hazardous roadway conditions, or railway-highway crossings, pursuant to sections 130, 144, 

and 148 of this title or for the purpose of developing any highway safety construction improvement project 

which may be implemented utilizing Federal-aid highway funds shall not be subject to discovery or admitted 

into evidence in a Federal or State court proceeding or considered for other purposes in any action for 

damages arising from any occurrence at a location mentioned or addressed in such reports, surveys, 

schedules, lists, or data.” 
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Executive Summary

The Illinois Department of Transportation (IDOT) updated Strategic Highway Safety Plan (SHSP) for 2022 from 

the 2017 version. What both of the plans have in common is IDOT's commitment to the ultimate goal of 

reaching zero fatalities and serious injuries on all Illinois roads. One of the strategies of reaching that is through 

the Federal Highway Administration’s (FHWA) Highway Safety Improvement Program (HSIP).

HSIP in Illinois is a data-driven program whose purpose is to provide funding for proven countermeasures to 

reduce fatalities and serious injury crashes on Illinois roadways. IDOT’s Bureau of Safety Programs and 

Engineering (BSPE) oversees the program and HSIP Committee while working with other safety partners such 

as the FHWA, IDOT’s Bureau of Operations, IDOT’s Bureau of Local Roads, IDOT districts, and local agencies 

and MPOs. Currently, IDOT districts may apply for HSIP funds year-round, while local agencies and MPOs 

may apply for projects only once a year. 

The HSIP Committee approves projects based on several factors such as historical crash data, appropriately 

chosen countermeasures based on the crash history, and the benefit/cost value. In recent years, the HSIP 

Committee has been trying to encourage IDOT districts and local agencies to consider alternative strategies as 

suggested by the FHWA such as innovative intersections or utilizing systemic approaches. 
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Introduction

The Highway Safety Improvement Program (HSIP) is a core Federal-aid program with the purpose of achieving 

a significant reduction in fatalities and serious injuries on all public roads. As per 23 U.S.C. 148(h) and 23 CFR 

924.15, States are required to report annually on the progress being made to advance HSIP implementation 

and evaluation efforts. The format of this report is consistent with the HSIP Reporting Guidance dated 

December 29, 2016 and consists of five sections: program structure, progress in implementing highway safety 

improvement projects, progress in achieving safety outcomes and performance targets, effectiveness of the 

improvements and compliance assessment. 

Program Structure

Program Administration 

Describe the general structure of the HSIP in the State. 

IDOT has an HSIP policy which identifies the process for data analysis, project application, project review, and 

approval and can be accessed via http://www.idot.illinois.gov/transportation-system/local-transportationpartners/county-engineers-and-local-public-agencies/funding-opportunities/highway-safety-improvementprogram ). 

IDOT is currently still in the process of updating the HSIP Policy and creating an HSIP Evaluation Tool. 

Illinois' HSIP is overseen by IDOT's Bureau of Safety Programs and Engineering (BSPE). IDOT districts are 

allowed to submit applications throughout the year for the HSIP Committee to review at their monthly meetings. 

Local agencies are able to submit once a year when the application period is open. Both state and local 

programs are reviewed based on using a data-driven and proven countermeasure approach. 

Where is HSIP staff located within the State DOT? 

 Other-Bureau of Safety Programs and Engineering

How are HSIP funds allocated in a State? 

• Other-See explanation in box. 

20% is allocated for local use, 20% is allocated for statewide safety initiatives, and remaining is divided 

between districts based on fatality rates. However, additional funding for local projects may be used from state 

funding if determined its needed for quality local projects. 

Describe how local and tribal roads are addressed as part of HSIP. 

Each year there is a period in which local agencies and MPOs are able to apply for funding for local projects. 

When the window to apply begins, BSPE hosts a webinar for local agencies and MPOs to inform them of the 

HSIP process and provide examples of HSIP applications are likely to be approved or denied. Through 

coordination with IDOT’s Bureau of Local Roads, local applications are received and then reviewed. Local 

HSIP applications are reviewed with the same criteria as state applications. A history of crashes must be 

shown, a countermeasure selected to address the crashes, and the benefit/cost analysis. However, should the 

project be systemic, a history of crashes is not required as long as the roadway owner can show the single or 
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multiple locations included in the project have roadway characteristics proven to contribute to fatal and severe 

injury crashes and the proposed countermeasure targets those fatal and severe injury crashes. 

Identify which internal partners (e.g., State departments of transportation (DOTs) 

Bureaus, Divisions) are involved with HSIP planning.

• Design

• Districts/Regions

• Local Aid Programs Office/Division

• Operations

• Traffic Engineering/Safety

Describe coordination with internal partners.

IDOT's HSIP Committee (formerly referred to as the Central Traffic Safety Committee in previous online 

reports) is comprised of several IDOT members from various bureaus within IDOT. Most are from the Bureau 

of Safety Programs and Engineering (BSPE), but there are also members from the Bureau of Operations and 

Bureau of Design and Environment and one IDOT district who have their own unique perspective and area of 

expertise.

The HSIP Committee also works closely with IDOT districts on HSIP applications. Even if an application is 

denied, the HSIP Committee will provide a reason for the denial and suggestions for the district to reapply 

using a different and more appropriate countermeasure based on the observed crash data. The HSIP 

Committee also encourages an open dialogue with the districts and ensure they're welcome to reach out to the 

HSIP Committee on any possible projects.

One instance featured a district unsure of support for a roundabout. The HSIP Committee reviewed the data 

and agreed to meet with the district in which the HSIP Committee agreed with the proposed roundabout. An 

application followed shortly after which the HSIP Committee approved.

Each year when the submittal window for Local HSIP projects is open, the HSIP Committee works closely with 

the Bureau of Local Roads (Local Aid) in coordinating the submittal of Local HSIP applications. The Bureau of 

Local Roads works with the HSIP Committee in reviewing and approving or denying Local HSIP applications.

Identify which external partners are involved with HSIP planning.

• FHWA

• Local Government Agency 

• Regional Planning Organizations (e.g. MPOs, RPOs, COGs)

• Other-Local Agencies

Describe coordination with external partners.

Besides IDOT employees, the HSIP Committee includes FHWA staff. Should a question arise about funding or 

the eligibility of projects, the HSIP Committee will reach out to their external partners at FHWA.

Similar to how the HSIP Committee encourages IDOT districts to reach out with any questions regarding HSIP, 

the HSIP Committee encourages local agencies and MPOs to reach out and provides feedback and comments 

on Local HSIP applications. The HSIP Committee ensures they have access to the latest BSPE tools such as 

the safety tiers, data trees, emphasis area tables and graphs, crash data, and crash analysis tool, and putting 

them into contact with the IDOT safety contact from their respective IDOT district.
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A new tool for 2021 was the creation of the Run Off the Road Initiative (RORI) tool which allows local agencies 

to view their rural roads and recommended countermeasures such as adding shoulders, rumble stripes, and 

more with a benefit/cost estimate to better aid local agencies in applying for HSIP projects.

Describe other aspects of HSIP Administration on which the State would like to 

elaborate. 

HSIP in Illinois is administered by the HSIP Committee. The HSIP Committee is overseen by IDOT’s Bureau of 

Safety and Programs (BSPE)’s Safety Design Unit Chief. The HSIP Committee is made of members from 

BSPE, IDOT’s Bureau of Operations and Bureau Design and Environment, and FHWA. All projects are 

approved based on the 90/10 split, with 90% of the project cost being paid for by HSIP funds and the 

remaining 10% paid for by either the district or local agency requesting the HSIP funding.

Once a month, The HSIP Committee reviews new HSIP applications for projects on state roadways. Any of the 

nine IDOT districts can submit an HSIP application through the HSIP SharePoint site. Each application must 

include the five most recent years of available crash data for the location, a detailed cost sheet, a project 

description, and a completed copy of Illinois’ benefit/cost tool spreadsheet which is available via IDOT’s 

website. Ideally, the application will have supporting documentation such as plans, photos of existing 

conditions, and the location. At the monthly meeting the HSIP Committee then decides to approve or deny 

each application. Applications may be reviewed with partial funding, or denied, but encouraged to resubmit 

based on feedback from the HSIP Committee.

The HSIP Committee also works with members from IDOT’s Bureau of Local Roads in administering HSIP 

projects on local roads. Local agencies and MPOs can apply once a year for local HSIP projects. The 

requirements for local HSIP applications are the same as state applications.

After applications are approved, the district or local agency are then notified so they can continue with the next 

steps of programming and constructing their project. For the HSIP Committee to perform an evaluation on the 

effectiveness of the project, they require five years of after data.

Program Methodology

Does the State have an HSIP manual or similar that clearly describes HSIP planning, 

implementation and evaluation processes?

Yes

http://www.idot.illinois.gov/Assets/uploads/files/Transportation-System/Manuals-Guides-&-

Handbooks/Safety/SAFETY%201.06%20-%20Safety%20Engineering%20Policy%20Memorandum.pdf

Select the programs that are administered under the HSIP.

• Horizontal Curve

• HRRR

• Left Turn Crash

• Local Safety

• Pedestrian Safety

• Roadway Departure

• Other-Run off Road (Pilot)

Program: Horizontal Curve

Date of Program Methodology:3/1/2018
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What is the justification for this program? 

• Addresses SHSP priority or emphasis area

• FHWA focused approach to safety

What is the funding approach for this program? 

Competes with all projects

What data types were used in the program methodology? 

Crashes Exposure Roadway 

• All crashes

• Fatal and serious injury crashes 

only

• Traffic

• Volume

• Median width

• Horizontal curvature

• Functional classification

• Roadside features

What project identification methodology was used for this program? 

• Crash frequency

• Crash rate

• Other-Weighted crash rate

Are local roads (non-state owned and operated) included or addressed in this 

program?

Yes

Are local road projects identified using the same methodology as state roads?

Yes

How are projects under this program advanced for implementation?

• selection committee

Select the processes used to prioritize projects for implementation. For the methods 

selected, indicate the relative importance of each process in project prioritization. 

Enter either the weights or numerical rankings. If weights are entered, the sum must 

equal 100. If ranks are entered, indicate ties by giving both processes the same rank 

and skip the next highest rank (as an example: 1, 2, 2, 4).

Rank of Priority Consideration

Available funding:1

Cost Effectiveness:2

Program: HRRR

Date of Program Methodology:3/1/2018
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What is the justification for this program? 

• Other-HRRR

What is the funding approach for this program? 

Other- Funding set aside if in penalty, otherwise competes with all projects

What data types were used in the program methodology? 

Crashes Exposure Roadway 

• Fatal and serious injury crashes 

only • Traffic • Functional classification

What project identification methodology was used for this program? 

• Crash rate

• Excess expected crash frequency using SPFs

Are local roads (non-state owned and operated) included or addressed in this 

program?

Yes

Are local road projects identified using the same methodology as state roads?

Yes

How are projects under this program advanced for implementation?

• Competitive application process

• selection committee

Select the processes used to prioritize projects for implementation. For the methods 

selected, indicate the relative importance of each process in project prioritization. 

Enter either the weights or numerical rankings. If weights are entered, the sum must 

equal 100. If ranks are entered, indicate ties by giving both processes the same rank 

and skip the next highest rank (as an example: 1, 2, 2, 4).

Rank of Priority Consideration

Available funding:1

Cost Effectiveness:2

Program: Left Turn Crash

Date of Program Methodology:11/6/2019

What is the justification for this program? 
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• Other-Address high amount of crashes and severe injuries occurring at urban signalized 

intersections

What is the funding approach for this program? 

Competes with all projects

What data types were used in the program methodology? 

Crashes Exposure Roadway 

• Fatal and serious injury crashes 

only • Traffic • Functional classification

• Roadside features

What project identification methodology was used for this program? 

• Crash frequency

• Crash rate

• Excess proportions of specific crash types

Are local roads (non-state owned and operated) included or addressed in this 

program?

No

Are local road projects identified using the same methodology as state roads?

How are projects under this program advanced for implementation?

• selection committee

Select the processes used to prioritize projects for implementation. For the methods 

selected, indicate the relative importance of each process in project prioritization. 

Enter either the weights or numerical rankings. If weights are entered, the sum must 

equal 100. If ranks are entered, indicate ties by giving both processes the same rank 

and skip the next highest rank (as an example: 1, 2, 2, 4).

Rank of Priority Consideration

Available funding:1

Cost Effectiveness:2

Program: Local Safety

Date of Program Methodology:1/1/2018

What is the justification for this program? 

• Addresses SHSP priority or emphasis area

• FHWA focused approach to safety
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• Other-HRRR Penalty

• Other-FHWA EDC5

What is the funding approach for this program? 

Other-HSIP allocation for locally owned roadways

What data types were used in the program methodology? 

Crashes Exposure Roadway 

• Fatal and serious injury crashes 

only • Traffic

• Horizontal curvature

• Functional classification

• Other-Ownership

What project identification methodology was used for this program? 

• Crash frequency

• Crash rate

• Excess expected crash frequency using SPFs

• Excess proportions of specific crash types

• Probability of specific crash types

Are local roads (non-state owned and operated) included or addressed in this 

program?

Yes

Are local road projects identified using the same methodology as state roads?

Yes

How are projects under this program advanced for implementation?

• Competitive application process

• selection committee

Select the processes used to prioritize projects for implementation. For the methods 

selected, indicate the relative importance of each process in project prioritization. 

Enter either the weights or numerical rankings. If weights are entered, the sum must 

equal 100. If ranks are entered, indicate ties by giving both processes the same rank 

and skip the next highest rank (as an example: 1, 2, 2, 4).

Rank of Priority Consideration

Available funding:2

Cost Effectiveness:1

Program: Pedestrian Safety

Date of Program Methodology:9/28/2017
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What is the justification for this program? 

• Addresses SHSP priority or emphasis area

• FHWA focused approach to safety

What is the funding approach for this program? 

Competes with all projects

What data types were used in the program methodology? 

Crashes Exposure Roadway 

• Other-Pedestrian fatal and 

serious crashes only • Other-All routes eligible

What project identification methodology was used for this program? 

• Crash frequency

Are local roads (non-state owned and operated) included or addressed in this 

program?

Yes

Are local road projects identified using the same methodology as state roads?

Yes

How are projects under this program advanced for implementation?

• Competitive application process

Select the processes used to prioritize projects for implementation. For the methods 

selected, indicate the relative importance of each process in project prioritization. 

Enter either the weights or numerical rankings. If weights are entered, the sum must 

equal 100. If ranks are entered, indicate ties by giving both processes the same rank 

and skip the next highest rank (as an example: 1, 2, 2, 4).

Rank of Priority Consideration

Available funding:1

Cost Effectiveness:2

Program: Roadway Departure

Date of Program Methodology:3/31/2021

What is the justification for this program? 

• Addresses SHSP priority or emphasis area

• Other-Assist local agencies
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What is the funding approach for this program? 

Competes with all projects

What data types were used in the program methodology? 

Crashes Exposure Roadway 

• Fatal and serious injury crashes 

only • Other-Loal rural roads

What project identification methodology was used for this program? 

• Crash rate

• Other-Benefit/cost analysis

Are local roads (non-state owned and operated) included or addressed in this 

program?

Yes

Are local road projects identified using the same methodology as state roads?

How are projects under this program advanced for implementation?

• Other-Compete with all local road HSIP applications

Select the processes used to prioritize projects for implementation. For the methods 

selected, indicate the relative importance of each process in project prioritization. 

Enter either the weights or numerical rankings. If weights are entered, the sum must 

equal 100. If ranks are entered, indicate ties by giving both processes the same rank 

and skip the next highest rank (as an example: 1, 2, 2, 4).

Rank of Priority Consideration

Ranking based on B/C:2

Available funding:3

Other-Crash history:1

Program: Other-Run off Road (Pilot)

Date of Program Methodology:3/4/2019

What is the justification for this program? 

• Addresses SHSP priority or emphasis area

• FHWA focused approach to safety

What is the funding approach for this program? 

Other-Encourages county participation in HSIP
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What data types were used in the program methodology? 

Crashes Exposure Roadway 

• Other-Run-off-the-road all injury 

crashes

• Functional classification

• Other-Roadway features that 

may be addressed with specific 

countermeasures

What project identification methodology was used for this program? 

• Crash frequency

• Probability of specific crash types

Are local roads (non-state owned and operated) included or addressed in this 

program?

Yes

Are local road projects identified using the same methodology as state roads?

Yes

How are projects under this program advanced for implementation?

• Competitive application process

• selection committee

Select the processes used to prioritize projects for implementation. For the methods 

selected, indicate the relative importance of each process in project prioritization. 

Enter either the weights or numerical rankings. If weights are entered, the sum must 

equal 100. If ranks are entered, indicate ties by giving both processes the same rank 

and skip the next highest rank (as an example: 1, 2, 2, 4).

Rank of Priority Consideration

Available funding:1

Cost Effectiveness:2

What percentage of HSIP funds address systemic improvements? 

 54

 HSIP funds are used to address which of the following systemic 

improvements? 

• Add/Upgrade/Modify/Remove Traffic Signal 

• Cable Median Barriers 

• Other-Dilemma Zone Detection System 

• Other-ITS

• Pavement/Shoulder Widening 

• Rumble Strips 

• Upgrade Guard Rails 
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STILL WAITING ON FINAL LIST OF PROJECTS. PLEASE RETURN QUESTION.

What process is used to identify potential countermeasures? 

• Crash data analysis

• Data-driven safety analysis tools (HSM, CMF Clearinghouse, SafetyAnalyst, usRAP)

• Engineering Study

• Road Safety Assessment

• SHSP/Local road safety plan

• Stakeholder input

Does the State HSIP consider connected vehicles and ITS technologies? 

No

IDOT has allowed HSIP funds to be used for smart work zones, changeable message boards, and ramp 

metering.

Does the State use the Highway Safety Manual to support HSIP efforts?

Yes

Please describe how the State uses the HSM to support HSIP efforts.

The HSM was used as a basis for developing Illinois calibrated safety performance functions (SPFs). These 

SPFs have been used in the development of Illinois’ safety tiers and other tools which assist in HSIP 

identification and approval process. Each HSIP application requires a benefit/cost analysis using proven, highquality countermeasures from the CMF Clearinghouse and HSM. HSIP projects completed from 2007 – 2015 

were evaluated using methods found in the HSM. IDOT updated its state safety tiers based on 2014 - 2018 

crash data and an update for the local tiers based on more recent crash data is in development.
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Project Implementation

Funds Programmed 

Reporting period for HSIP funding. 

State Fiscal Year

July 1, 2020 - June 30, 2021 

Enter the programmed and obligated funding for each applicable funding category. 

FUNDING CATEGORY PROGRAMMED OBLIGATED % 

OBLIGATED/PROGRAMMED

HSIP (23 U.S.C. 148) $156,887,000 $60,482,774 38.55%

HRRR Special Rule (23 

U.S.C. 148(g)(1))

$1,580,259 $1,580,259 100%

Penalty Funds (23 U.S.C. 

154)

$0 $0 0%

Penalty Funds (23 U.S.C. 

164)

$0 $0 0%

RHCP (for HSIP 

purposes) (23 U.S.C. 

130(e)(2))

$0 $0 0%

Other Federal-aid Funds 

(i.e. STBG, NHPP)

$0 $0 0%

State and Local Funds $0 $0 0%

Totals $158,467,259 $62,063,033 39.16%

HSIP Programmed and Obligated amounts include both state and local projects. While Illinois was not in 

penalty and did not have to spend HRRR funding, Illinois has been keeping a list of projects with HRRR 

locations. 

How much funding is programmed to local (non-state owned and operated) or tribal 

safety projects? 

20%

How much funding is obligated to local or tribal safety projects? 

20%

Illinois usually sets aside 20% for locals, but did set aside additional funding over $3,000,000.00. Discussions 

to increase funding for next FY year to 30%/70% were also conducted. 

How much funding is programmed to non-infrastructure safety projects? 

$0
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How much funding is obligated to non-infrastructure safety projects?

$0

How much funding was transferred in to the HSIP from other core program areas 

during the reporting period under 23 U.S.C. 126?

$0

How much funding was transferred out of the HSIP to other core program areas during 

the reporting period under 23 U.S.C. 126?

$0

Discuss impediments to obligating HSIP funds and plans to overcome this challenge in 

the future.

In the past, obstacles to the obligation of HSIP funds included the obtainment of right of way, compliance with 

the federal National Environmental Policy Act, and Buy America. Purchasing right of way can sometimes be a 

tedious and drawn out process depending on the roadway owner and purchase amount. The National 

Environmental Policy Act can cause issues at site locations by prohibiting or limiting what construction can take 

place. Buy America has caused issues with several recent projects as the requested equipment to be 

purchased—moveable barrier wall to be used in construction zones, and a pavement striper to be used for 

striping unmarked rural roads—as every single piece of the equipment could not be guaranteed to be made in 

America.

These obstacles are still present, but due to COVID 19, IDOT's HSIP is still seeing COVID 19 and inflation 

issues with districts and local agencies requesting time extensions and additional funding due to construction 

materials availability and increase in prices. IDOT is expecting to see COVID 19 related obstacles to continue 

for the next few years.
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General Listing of Projects

List the projects obligated using HSIP funds for the reporting period.

PROJECT 

NAME

IMPROVEMENT 

CATEGORY SUBCATEGORY OUTPUTS OUTPUT TYPE

HSIP 

PROJECT 

COST($)

TOTAL 

PROJECT 

COST($)

FUNDING 

CATEGORY

LAND 

USE/AREA 

TYPE

FUNCTIONAL 

CLASSIFICATION AADT SPEED OWNERSHIP

METHOD 

FOR SITE 

SELECTION

SHSP 

EMPHASIS 

AREA

SHSP 

STRATEGY

C-93-033-

20

Intersection 

geometry

Innovative Intersection 

(e.g. MUT, RCUT, QR)

1 Intersections $2475000 $2750000 HSIP (23 

U.S.C. 148)

Rural Major Collector 5,375 55 State 

Highway 

Agency

Spot Intersections Enhance 

intersection 

safety 

performance 

C-97-099-

20

Intersection 

traffic control

Modify control – two-way 

stop to all-way stop

1 Intersections $670032 $744813 HSIP (23 

U.S.C. 148)

Rural Minor Arterial 11,500 55 State 

Highway 

Agency

Spot Intersections Enhance 

intersection 

safety 

performance 

N-98-001-

20

Roadside Barrier - other 1 System $315000 $350000 HSIP (23 

U.S.C. 148)

Multiple/Varies Multiple/Varies 20,000 55 State 

Highway 

Agency

Systemic Work Zones Enhance 

work zone 

safety 

performance

C-99-021-

21

Shoulder 

treatments

Widen shoulder – paved or 

other (includes add 

shoulder)

10.02 Miles $1935000 $2150000 HSIP (23 

U.S.C. 148)

Urban Major Collector 7,100 45 State 

Highway 

Agency

Spot Roadway 

Departure

Keep 

vehicles in 

their 

respective 

lanes

C99-021-21Shoulder 

treatments

Widen shoulder – paved or 

other (includes add 

shoulder)

4.51 Miles $1161000 $1290000 HSIP (23 

U.S.C. 148)

Urban Major Collector 5,700 45 State 

Highway 

Agency

Spot Roadway 

Departure

Keep 

vehicles in 

their 

respective 

lanes

C-91-469-

11

Intersection 

traffic control

Modify traffic signal –

modernization/replacement

3 Intersections $5247450 $5830500 HSIP (23 

U.S.C. 148)

Urban Principal ArterialOther67,000 35 State 

Highway 

Agency

Spot Intersections Enhance 

intersection 

safety 

performance 

C-91-062-

18

Roadway Roadway widening - add 

lane(s) along segment

0.74 Miles $4667580 $5186200 HSIP (23 

U.S.C. 148)

Urban Minor Arterial 11,000 45 State 

Highway 

Agency

Spot Lane 

Departure

Keep 

vehicles in 

their 

respective 

lanes

C-91-321-

19

Intersection 

traffic control

Modify traffic signal –

modernization/replacement

9 Intersections $4503 $5003000 HSIP (23 

U.S.C. 148)

Urban Multiple/Varies 60,000 30 State 

Highway 

Agency

Systemic Intersections Enhance 

intersection 

safety 

performance 

C-91-353-

19

Intersection 

traffic control

Modify traffic signal –

modernization/replacement

1 Intersections $315000 $350000 HSIP (23 

U.S.C. 148)

Urban Minor Arterial 27,000 45 State 

Highway 

Agency

Spot Intersections Enhance 

intersection 

safety 

performance 

C-91-395-

20

Speed 

management

Dynamic Speed Feedback 

Signs

5 Locations $128700 $143000 HSIP (23 

U.S.C. 148)

Urban Multiple/Varies 50,000 45 State 

Highway 

Agency

Spot Lane 

Departure

Keep 

vehicles in 

their 
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PROJECT 

NAME

IMPROVEMENT 

CATEGORY SUBCATEGORY OUTPUTS OUTPUT TYPE

HSIP 

PROJECT 

COST($)

TOTAL 

PROJECT 

COST($)

FUNDING 

CATEGORY

LAND 

USE/AREA 

TYPE

FUNCTIONAL 

CLASSIFICATION AADT SPEED OWNERSHIP

METHOD 

FOR SITE 

SELECTION

SHSP 

EMPHASIS 

AREA

SHSP 

STRATEGY

respective 

lanes 

C-92-003-

17

Intersection 

geometry

Intersection geometry - 

other

1 Intersections $2301300 $2557000 HSIP (23 

U.S.C. 148)

Urban Principal ArterialOther52,050 45 State 

Highway 

Agency

Spot Intersections Enhance 

intersection 

safety 

performance 

C-93-105-

19

Roadway Rumble strips – edge or 

shoulder

6 Miles $1215000 $1350000 HSIP (23 

U.S.C. 148)

Rural Minor Arterial 2,900 55 State 

Highway 

Agency

Systemic Roadway 

Departure

Keep 

vehicles in 

their 

respective 

lanes 

C-93-106-

19

Roadway Rumble strips – edge or 

shoulder

5 Miles $1012500 $1125000 HSIP (23 

U.S.C. 148)

Rural Minor Arterial 2,250 55 State 

Highway 

Agency

Systemic Roadway 

Departure

Keep 

vehicles in 

their 

respective 

lanes 

C-93-108-

19

Roadway Rumble strips – edge or 

shoulder

6.1 Miles $1237500 $1375000 HSIP (23 

U.S.C. 148)

Rural Minor Arterial 1,500 55 State 

Highway 

Agency

Systemic Roadway 

Departure

Keep 

vehicles in 

their 

respective 

lanes 

C-93-118-

20

Roadway Rumble strips – edge or 

shoulder

4.16 Miles $982800 $1092000 HSIP (23 

U.S.C. 148)

Rural Minor Arterial 2,450 55 State 

Highway 

Agency

Systemic Roadway 

Departure

Keep 

vehicles in 

their 

respective 

lanes 

C-93-119-

20

Roadway Rumble strips – edge or 

shoulder

4.16 Miles $810000 $900000 HSIP (23 

U.S.C. 148)

Rural Minor Arterial 3,500 55 State 

Highway 

Agency

Systemic Roadway 

Departure

Keep 

vehicles in 

their 

respective 

lanes 

C-93-120-

20

Roadside Barrier – cable 5.62 Miles $1192500 $1325000 HSIP (23 

U.S.C. 148)

Rural Principal ArterialInterstate17,200 70 State 

Highway 

Agency

Systemic Roadway 

Departure

Keep 

vehicles in 

their 

respective 

lanes 

C-93-121-

20

Roadside Barrier – cable 6 Miles $1350000 $1500000 HSIP (23 

U.S.C. 148)

Rural Principal ArterialInterstate20,100 70 State 

Highway 

Agency

Systemic Roadway 

Departure

Keep 

vehicles in 

their 

respective 

lanes

C-94-071-

20

Roadside Barrier end treatments 

(crash cushions, terminals)

63 Locations $1048766 $1165296 HSIP (23 

U.S.C. 148)

Rural Multiple/Varies 5,050 55 State 

Highway 

Agency

Systemic Roadway 

Departure

Keep 

vehicles in 

their 

respective 

lanes 
2022 Illinois Highway Safety Improvement Program

Page 20 of 41

PROJECT 

NAME

IMPROVEMENT 

CATEGORY SUBCATEGORY OUTPUTS OUTPUT TYPE

HSIP 

PROJECT 

COST($)

TOTAL 

PROJECT 

COST($)

FUNDING 

CATEGORY

LAND 

USE/AREA 

TYPE

FUNCTIONAL 

CLASSIFICATION AADT SPEED OWNERSHIP

METHOD 

FOR SITE 

SELECTION

SHSP 

EMPHASIS 

AREA

SHSP 

STRATEGY

C-94-011-

21

Intersection 

traffic control

Dilemma Zone Detection 

System

16 Intersections $720000 $800000 HSIP (23 

U.S.C. 148)

Urban Multiple/Varies 16,635 50 State 

Highway 

Agency

Systemic Intersections Enhance 

intersection 

safety 

performance 

C-94-040-

21

Intersection 

traffic control

Modify control – two-way 

stop to all-way stop

1 Intersections $112765 $125295 HSIP (23 

U.S.C. 148)

Rural Principal ArterialOther6,550 55 State 

Highway 

Agency

Spot Intersections Enhance 

intersection 

safety 

performance 

C-95-036-

20

Roadway Rumble strips – edge or 

shoulder

15.52 Miles $8550000 $9500000 HSIP (23 

U.S.C. 148)

Rural Minor Arterial 2,500 55 State 

Highway 

Agency

Systemic Roadway 

Departure

Keep 

vehicles in 

their 

respective 

lanes 

C-96-081-

20

Intersection 

traffic control

Modify traffic signal – add 

flashing yellow arrow

2 Intersections $675000 $750000 HSIP (23 

U.S.C. 148)

Urban Principal ArterialOther24,350 30 State 

Highway 

Agency

Systemic Intersections Enhance 

intersection 

safety 

performance 

C-96-023-

21

Intersection 

traffic control

Modify traffic signal – add 

flashing yellow arrow

3 Intersections $1080000 $1200000 HSIP (23 

U.S.C. 148)

Urban Principal ArterialOther14,000 45 State 

Highway 

Agency

Systemic Intersections Enhance 

intersection 

safety 

performance 

C-97-027-

15

Intersection 

traffic control

Modify traffic signal – add 

flashing yellow arrow

18 Intersections $5394600 $5994000 HSIP (23 

U.S.C. 148)

Urban Principal ArterialOther18,300 35 State 

Highway 

Agency

Systemic Intersections Enhance 

intersection 

safety 

performance 

C-97-017-

20

Roadway Rumble strips – edge or 

shoulder

9.99 Miles $1828800 $2032000 HSIP (23 

U.S.C. 148)

Rural Minor Arterial 1,750 55 State 

Highway 

Agency

Systemic Roadway 

Departure

Keep 

vehicles in 

their 

respective 

lanes 

C-97-027-

19

Roadway Rumble strips – edge or 

shoulder

4.66 Miles $894123 $993470 HSIP (23 

U.S.C. 148)

Rural Minor Arterial 3,650 55 State 

Highway 

Agency

Systemic Roadway 

Departure

Keep 

vehicles in 

their 

respective 

lanes 

C-98-062-

21

Advanced 

technology and 

ITS

Advanced technology and 

ITS - other

1 Locations $450000 $500000 HSIP (23 

U.S.C. 148)

Rural Principal ArterialInterstate32,000 65 State 

Highway 

Agency

Systemic Work Zones Enhance 

work zone 

safety 

performance

C-98-071-

21

Intersection 

traffic control

Modify traffic signal – add 

flashing yellow arrow

12 Intersections $883800 $982000 HSIP (23 

U.S.C. 148)

Urban Principal ArterialOther15,564 45 State 

Highway 

Agency

Systemic Intersections Enhance 

intersection 

safety 

performance 
2022 Illinois Highway Safety Improvement Program

Page 21 of 41

PROJECT 

NAME

IMPROVEMENT 

CATEGORY SUBCATEGORY OUTPUTS OUTPUT TYPE

HSIP 

PROJECT 

COST($)

TOTAL 

PROJECT 

COST($)

FUNDING 

CATEGORY

LAND 

USE/AREA 

TYPE

FUNCTIONAL 

CLASSIFICATION AADT SPEED OWNERSHIP

METHOD 

FOR SITE 

SELECTION

SHSP 

EMPHASIS 

AREA

SHSP 

STRATEGY

C-99-067-

19

Intersection 

traffic control

Modify traffic signal – add 

flashing yellow arrow

6 Intersections $1620000 $1800000 HSIP (23 

U.S.C. 148)

Urban Principal ArterialOther20,700 40 State 

Highway 

Agency

Spot Intersections Enhance 

intersection 

safety 

performance 

C-99-088-

18

Intersection 

geometry

Innovative Intersection 

(e.g. MUT, RCUT, QR)

1 Intersections $3150000 $3500000 HSIP (23 

U.S.C. 148)

Urban Principal ArterialOther7,675 55 State 

Highway 

Agency

Spot Intersections Enhance 

intersection 

safety 

performance 

C-99-099-

20

Roadway Pavement surface – high 

friction surface

1 Locations $108000 $120000 HSIP (23 

U.S.C. 148)

Urban Principal ArterialInterstate4,200 55 State 

Highway 

Agency

Spot Roadway 

Departure

Keep 

vehicles in 

their 

respective 

lanes 

P-91-023-

20

Intersection 

geometry

Intersection realignment 1 Intersections $774000 $860000 HSIP (23 

U.S.C. 148)

Urban Minor Arterial 16,400 30 City or 

Municipal 

Highway 

Agency

Spot Intersections Enhance 

intersection 

safety 

performance 

P-91-026-

20

Pedestrians and 

bicyclists

Rapid Rectangular 

Flashing Beacons (RRFB)

2 Locations $351035 $390039 HSIP (23 

U.S.C. 148)

Urban Minor Arterial 26,000 35 City or 

Municipal 

Highway 

Agency

Spot Pedestrians Improve 

visibility for 

pedestrians

P-91-034-

20

Intersection 

traffic control

Modify traffic signal – add 

flashing yellow arrow

5 Intersections $1147500 $1275000 HSIP (23 

U.S.C. 148)

Urban Minor Arterial 25,000 40 County 

Highway 

Agency

Systemic Intersections Enhance 

intersection 

safety 

performance 

C-91-083-

18

Intersection 

traffic control

Modify traffic signal – 

modernization/replacement

5 Intersections $1462500 $1625000 HSIP (23 

U.S.C. 148)

Urban Minor Arterial 55,700 40 County 

Highway 

Agency

Spot Intersections Enhance 

intersection 

safety 

performance 

C-91-301-

19

Intersection 

traffic control

Modify traffic signal – add 

flashing yellow arrow

1 Intersections $605700 $673000 HSIP (23 

U.S.C. 148)

Urban Principal ArterialOther31,945 45 County 

Highway 

Agency

Systemic Intersections Enhance 

intersection 

safety 

performance 

C-92-059-

19

Roadside Barrier- metal 17.2 Miles $1000000 $1136094 HSIP (23 

U.S.C. 148)

Rural Multiple/Varies 667 55 County 

Highway 

Agency

Systemic Roadway 

Departure

Keep 

vehicles in 

their 

respective 

lanes 

C-92-060-

19

Roadside Barrier- metal 34.4 Miles $1433000 $1592000 HSIP (23 

U.S.C. 148)

Rural Multiple/Varies 667 55 County 

Highway 

Agency

Systemic Pedestrians Reduce 

vehicle 

speed

C-94-048-

19

Roadway Roadway narrowing (road 

diet, roadway 

reconfiguration)

1 Miles $2353422 $2614914 HSIP (23 

U.S.C. 148)

Urban Minor Arterial 9,100 30 City or 

Municipal 

Highway 

Agency

Spot Roadway 

Departure

Keep 

vehicles in 

their 
2022 Illinois Highway Safety Improvement Program

Page 22 of 41

PROJECT 

NAME

IMPROVEMENT 

CATEGORY SUBCATEGORY OUTPUTS OUTPUT TYPE

HSIP 

PROJECT 

COST($)

TOTAL 

PROJECT 

COST($)

FUNDING 

CATEGORY

LAND 

USE/AREA 

TYPE

FUNCTIONAL 

CLASSIFICATION AADT SPEED OWNERSHIP

METHOD 

FOR SITE 

SELECTION

SHSP 

EMPHASIS 

AREA

SHSP 

STRATEGY

respective 

lanes 

C-94-046-

20

Roadside Barrier- metal 6.38 Miles $617590 $686212 HSIP (23 

U.S.C. 148)

Rural Multiple/Varies 675 55 County 

Highway 

Agency

Systemic Roadway 

Departure

Keep 

vehicles in 

their 

respective 

lanes 

P-94-025-

20

Roadside Barrier end treatments 

(crash cushions, terminals)

420 Locations $990000 $1100000 HSIP (23 

U.S.C. 148)

Rural Multiple/Varies 675 55 County 

Highway 

Agency

Systemic Roadway 

Departure

Keep 

vehicles in 

their 

respective 

lanes 

C-94-035-

15

Alignment Horizontal curve 

realignment

1 Locations $486000 $540000 HSIP (23 

U.S.C. 148)

Rural Minor Collector 900 30 City or 

Municipal 

Highway 

Agency

Spot Roadway 

Departure

Keep 

vehicles in 

their 

respective 

lanes 

C-95-071-

20

Shoulder 

treatments

Widen shoulder – paved or 

other (includes add 

shoulder)

4.25 Miles $2388903 $4500000 HSIP (23 

U.S.C. 148)

Rural Major Collector 4,500 55 County 

Highway 

Agency

Systemic Roadway 

Departure

Keep 

vehicles in 

their 

respective 

lanes 

C-96-078-

18

Roadway Roadway narrowing (road 

diet, roadway 

reconfiguration)

0.8 Miles $830700 $923000 HSIP (23 

U.S.C. 148)

Urban Minor Arterial 8,400 30 City or 

Municipal 

Highway 

Agency

Spot Pedestrians Reduce 

vehicle 

speed

C-96-142-

20

Roadside Barrier end treatments 

(crash cushions, terminals)

304 Locations $1704904 $1894338 HSIP (23 

U.S.C. 148)

Rural Multiple/Varies 100 55 County 

Highway 

Agency

Systemic Roadway 

Departure

Keep 

vehicles in 

their 

respective 

lanes 

C-96-001-

21

Alignment Horizontal curve 

realignment

0.63 Miles $1318500 $1465000 HSIP (23 

U.S.C. 148)

Rural Major Collector 1,350 55 County 

Highway 

Agency

Spot Roadway 

Departure

Keep 

vehicles in 

their 

respective 

lanes 

C-96-025-

19

Roadside Barrier end treatments 

(crash cushions, terminals)

146 Locations $1221145 $1356828 HSIP (23 

U.S.C. 148)

Rural Local Road or 

Street

100 55 County 

Highway 

Agency

Systemic Roadway 

Departure

Keep 

vehicles in 

their 

respective 

lanes 

C-96-012-

20

Roadway Roadway widening - travel 

lanes

1.05 Miles $1000000 $1111110 HSIP (23 

U.S.C. 148)

Rural Major Collector 1,750 55 County 

Highway 

Agency

Spot Roadway 

Departure

Keep 

vehicles in 

their 

respective 

lanes 
2022 Illinois Highway Safety Improvement Program

Page 23 of 41

PROJECT 

NAME

IMPROVEMENT 

CATEGORY SUBCATEGORY OUTPUTS OUTPUT TYPE

HSIP 

PROJECT 

COST($)

TOTAL 

PROJECT 

COST($)

FUNDING 

CATEGORY

LAND 

USE/AREA 

TYPE

FUNCTIONAL 

CLASSIFICATION AADT SPEED OWNERSHIP

METHOD 

FOR SITE 

SELECTION

SHSP 

EMPHASIS 

AREA

SHSP 

STRATEGY

C-97-094-

20

Shoulder 

treatments

Widen shoulder – paved or 

other (includes add 

shoulder)

3.88 Miles $420650 $525813 HSIP (23 

U.S.C. 148)

Rural Major Collector 2,350 55 County 

Highway 

Agency

Systemic Roadway 

Departure

Keep 

vehicles in 

their 

respective 

lanes 

P-97-057-

20

Alignment Vertical alignment or 

elevation change

0.5 Miles $549996 $611107 HSIP (23 

U.S.C. 148)

Rural Major Collector 1,350 55 County 

Highway 

Agency

Spot Roadway 

Departure

Keep 

vehicles in 

their 

respective 

lanes 

P-97-001-

21

Shoulder 

treatments

Widen shoulder – paved or 

other (includes add 

shoulder)

1.81 Miles $1637550 $1819500 HSIP (23 

U.S.C. 148)

Rural Major Collector 900 55 County 

Highway 

Agency

Systemic Roadway 

Departure

Keep 

vehicles in 

their 

respective 

lanes 

C-97-140-

21

Roadside Increase clear zone – 

tangent

16.5 Miles $631969 $702188 HSIP (23 

U.S.C. 148)

Rural Major Collector 1,600 55 County 

Highway 

Agency

Spot Roadway 

Departure

Keep 

vehicles in 

their 

respective 

lanes 

C-98-344-

11

Alignment Horizontal curve 

realignment

1 Locations $401013 $445570 HSIP (23 

U.S.C. 148)

Rural Major Collector 1,200 55 County 

Highway 

Agency

Spot Roadway 

Departure

Keep 

vehicles in 

their 

respective 

lanes 

C-99-042-

20

Intersection 

geometry

Innovative Intersection 

(e.g. MUT, RCUT, QR)

1 Intersections $176350 $1560155 HSIP (23 

U.S.C. 148)

Urban Minor Arterial 14,000 30 City or 

Municipal 

Highway 

Agency

Spot Intersections Enhance 

intersection 

safety 

performance 

P-95-001-

21

Intersection 

geometry

Intersection realignment 1 Intersections $1369953 $1522570 HRRR 

Special Rule 

(23 U.S.C. 

148(g)(1))

Rural Major Collector 363 55 County 

Highway 

Agency

Spot Intersections Enhance 

intersection 

safety 

performance 
2022 Illinois Highway Safety Improvement Program

Page 24 of 41

Safety Performance

General Highway Safety Trends 

Present data showing the general highway safety trends in the State for the past five 

years. 

PERFORMANCE 

MEASURES 2013 2014 2015 2016 2017 2018 2019 2020 2021

Fatalities 956 991 924 998 1,078 1,035 1,009 1,191 1,341

Serious Injuries 12,398 12,300 11,748 12,844 11,622 11,344 9,685 8,560 9,417

Fatality rate (per 

HMVMT)

0.914 0.941 0.881 0.948 1.005 0.958 0.938 1.267 1.312

Serious injury rate (per 

HMVMT)

11.855 11.681 11.199 12.206 10.830 10.497 9.000 9.106 9.215

Number nonmotorized fatalities170 156 155 178 173 190 190 199 250

Number of nonmotorized serious 

injuries

1,334 1,283 1,292 1,574 1,207 1,401 1,365 1,084 1,163
2022 Illinois Highway Safety Improvement Program

Page 25 of 41

0

200

400

600

800

1000

1200

1400

1600

2013 2014 2015 2016 2017 2018 2019 2020 2021

Annual Fatalities

Fatalities 5 Year Rolling Avg.

0

2000

4000

6000

8000

10000

12000

14000

2013 2014 2015 2016 2017 2018 2019 2020 2021

Annual Serious Injuries

Serious Injuries 5 Year Rolling Avg.
2022 Illinois Highway Safety Improvement Program

Page 26 of 41

0

0.2

0.4

0.6

0.8

1

1.2

1.4

2013 2014 2015 2016 2017 2018 2019 2020 2021

Fatality rate (per HMVMT)

Fatality rate (per HMVMT) 5 Year Rolling Avg.

0

2

4

6

8

10

12

14

2013 2014 2015 2016 2017 2018 2019 2020 2021

Serious injury rate (per HMVMT)

Serious injury rate (per HMVMT) 5 Year Rolling Avg.
2022 Illinois Highway Safety Improvement Program

Page 27 of 41

Describe fatality data source. 

FARS

IDOT also keeps track of fatalities and serious injury crashes through its Bureau of Data Collection. The 

Bureau of Data Collection creates GIS crash layers for each year of data and is responsible for reporting 

Illinois fatality data to FARS. 

To the maximum extent possible, present this data by functional classification and 

ownership. 

Year 2021

Functional 

Classification

Number of Fatalities

(5-yr avg)

Number of Serious 

Injuries

(5-yr avg)

Fatality Rate

(per HMVMT)

(5-yr avg)

Serious Injury Rate

 (per HMVMT)

(5-yr avg)

Rural Principal 

Arterial (RPA) - 

Interstate

56 242 0.59 2.54

Rural Principal 

Arterial (RPA) - Other 

Freeways and 

Expressways

1 5 0.63 3.16

Rural Principal 

Arterial (RPA) - Other

70 341 1.91 9.32

Rural Minor Arterial 85 437 2 10.28

0

200

400

600

800

1000

1200

1400

1600

1800

2000

2013 2014 2015 2016 2017 2018 2019 2020 2021

Non Motorized Fatalities and Serious Injuries

Fatalities Serious Injuries 5 Year Rolling Avg.
2022 Illinois Highway Safety Improvement Program

Page 28 of 41

Functional 

Classification

Number of Fatalities

(5-yr avg)

Number of Serious 

Injuries

(5-yr avg)

Fatality Rate

(per HMVMT)

(5-yr avg)

Serious Injury Rate

 (per HMVMT)

(5-yr avg)

Rural Minor Collector 14 62 2.74 12.12

Rural Major Collector 114 458 3.09 12.4

Rural Local Road or 

Street

51 468 1.47 13.49

Urban Principal 

Arterial (UPA) - 

Interstate

148 614 0.63 2.6

Urban Principal 

Arterial (UPA) - Other 

Freeways and 

Expressways

13 40 1.13 3.48

Urban Principal 

Arterial (UPA) - Other

321 2,003 1.74 10.87

Urban Minor Arterial 236 1,592 1.63 11.02

Urban Minor Collector 15 117 1.76 13.75

Urban Major Collector 127 885 1.65 11.47

Urban Local Road or 

Street

90 2,153 0.84 20.03
2022 Illinois Highway Safety Improvement Program

Page 29 of 41

Year 2019

Roadways Number of Fatalities

(5-yr avg)

Number of Serious 

Injuries

(5-yr avg)

Fatality Rate

(per HMVMT)

(5-yr avg)

Serious Injury Rate

(per HMVMT)

(5-yr avg)

State Highway 

Agency

0 0 0 0

County Highway 

Agency

0 0 0 0

Town or Township 

Highway Agency

0 0 0 0

City or Municipal 

Highway Agency

0 0 0 0

State Park, Forest, or 

Reservation Agency

0 0 0 0

Local Park, Forest or 

Reservation Agency

0 0 0 0

Other State Agency 0 0 0 0

Other Local Agency 0 0 0 0

Private (Other than 

Railroad)

0 0 0 0

Railroad 0 0 0 0

State Toll Authority 0 0 0 0

Local Toll Authority 0 0 0 0

Other Public 

Instrumentality (e.g. 

Airport, School, 

University)

0 0 0 0

Indian Tribe Nation 0 0 0 0

Safety Performance Targets

Safety Performance Targets

Calendar Year 2023 Targets *

Number of Fatalities:1088.1

Describe the basis for established target, including how it supports SHSP goals.

The target was established based on a 5-year rolling average using crash data and a 2% reduction. IDOT's 

overall goal as outlined in its SHSP is 0 fatalities and hopes that a 2% reduction each year will result in 
2022 Illinois Highway Safety Improvement Program

Page 30 of 41

ultimately reaching that goal. Implementing HSIP projects is just one of the ways in which IDOT can meet its 

goal.

Number of Serious Injuries:9316.7

Describe the basis for established target, including how it supports SHSP goals.

The target was established based on a 5-year rolling average using crash data and a 2% reduction. IDOT's 

overall goal as outlined in its SHSP is 0 fatalities and hopes that a 2% reduction each year will result in 

ultimately reaching that goal. Implementing HSIP projects is just one of the ways in which IDOT can meet its 

goal.

Fatality Rate:1.060

Describe the basis for established target, including how it supports SHSP goals.

The target was established based on a 5-year rolling average using crash data and a 2% reduction. IDOT's 

overall goal as outlined in its SHSP is 0 fatalities and hopes that a 2% reduction each year will result in 

ultimately reaching that goal. Implementing HSIP projects is just one of the ways in which IDOT can meet its 

goal.

Serious Injury Rate:9.000

Describe the basis for established target, including how it supports SHSP goals.

The target was established based on a 5-year rolling average using crash data and a 2% reduction. IDOT's 

overall goal as outlined in its SHSP is 0 fatalities and hopes that a 2% reduction each year will result in 

ultimately reaching that goal. Implementing HSIP projects is just one of the ways in which IDOT can meet its 

goal.

Total Number of Non-Motorized Fatalities and Serious Injuries:1438.9

Describe the basis for established target, including how it supports SHSP goals.

The target was established based on a 5-year rolling average using crash data and a 2% reduction. IDOT's 

overall goal as outlined in its SHSP is 0 fatalities and hopes that a 2% reduction each year will result in 

ultimately reaching that goal. Implementing HSIP projects is just one of the ways in which IDOT can meet its 

goal.

Describe efforts to coordinate with other stakeholders (e.g. MPOs, SHSO) to establish 

safety performance targets. 

IDOT acknowledges there might be issues with an annual 2% decrease. If changes were made, IDOT will work 

together to develop a plan with stakeholders such as MPOs, NHTSA, FHWA and others.

Past methodology involved developing using linear regression to develop statistical relations for each 

performance measures including a five-year average, ordinary least squared and exponential smoothing 

models to assess their fit with safety performance historic trends and account for future indications and 

influences. First state targets were set, followed by working with MPOs and local agencies to set targets 

specific to them and their needs.
2022 Illinois Highway Safety Improvement Program

Page 31 of 41

Does the State want to report additional optional targets? 

No

Describe progress toward meeting the State’s 2021 Safety Performance Targets (based 

on data available at the time of reporting). For each target, include a discussion of any 

reasons for differences in the actual outcomes and targets.

PERFORMANCE MEASURES TARGETS ACTUALS

Number of Fatalities 1000.0 1130.8

Number of Serious Injuries 11566.4 10125.6

Fatality Rate 0.930 1.096

Serious Injury Rate 10.790 9.730

Non-Motorized Fatalities and 

Serious Injuries

1517.6 1444.4

Illinois did meet the serious injury rate and non-motorized fatalities and serious injuries, and number of serious 

injuries, but like past years failed to meet number of fatalities and fatality rate. In regards to the fatality and 

fatality rate, IDOT believes that zero is the only acceptable number for fatalities and serious injuries and 

therefore set an aggressive ideal 2% reduction rate rather than a realistic reduction rate like other states have. 

Illinois is continuing to look at innovative program and initiatives such as creating flyers and tools, reaching out 

to the locals, and providing more guidance and feedback to the districts to increase quality HSIP project 

submissions. However, it is a slow process that takes time to implement and see results. Hopefully Illinois will 

see the fatality rate decrease with the release of its updated SHSP for 2022.

Applicability of Special Rules

Does the HRRR special rule apply to the State for this reporting period? 

No

Provide the number of older driver and pedestrian fatalities and serious injuries 65 

years of age and older for the past seven years.

PERFORMANCE 

MEASURES 2015 2016 2017 2018 2019 2020 2021

Number of Older Driver 

and Pedestrian Fatalities

158 176 157 145 180 175 201

Number of Older Driver 

and Pedestrian Serious 

Injuries

1,016 893 989 1,024 985 664 771
2022 Illinois Highway Safety Improvement Program

Page 32 of 41

Evaluation

Program Effectiveness 

How does the State measure effectiveness of the HSIP? 

• Benefit/Cost Ratio 

• Change in fatalities and serious injuries 

• Other-naive before-after studies for specific projects 

• Other-Statewide fatal and serious injuries, local route fatal and serious injuries and performance 

measures by emphasis area 

• Other-Empirical Bayes (EB) methods for projects and the program 

Based on the measures of effectiveness selected previously, describe the results of 

the State's program level evaluations. 

Due to the updated SHSP and other more time-sensitive responsibilities with limited staff and resources, BSPE 

is still evaluating the program's effectiveness. 

What other indicators of success does the State use to demonstrate effectiveness and 

success of the Highway Safety Improvement Program? 

• Increased awareness of safety and data-driven process 

• Increased focus on local road safety 

Effectiveness of Groupings or Similar Types of Improvements 

Present and describe trends in SHSP emphasis area performance measures. 

Year 2021

SHSP Emphasis Area Targeted Crash 

Type

Number of 

Fatalities

(5-yr avg)

Number of 

Serious 

Injuries

(5-yr avg)

Fatality Rate

 (per HMVMT)

(5-yr avg)

Serious Injury 

Rate

 (per HMVMT)

(5-yr avg)

Distracted/Fatigued/Drowsy 54 818 0.06 0.93

Heavy Vehicle 178 658 0.15 0.7

Impaired Driver 176 1,134 0.42 1.27

Intersection Related Intersections 340 3,967 0.26 4.09

Motorcycle 171 868 0.13 0.75

Older Driver 243 1,413 0.22 1.64

Pedalcyclist Vehicle/bicycle 35 302 0.02 0.32

Pedestrian Vehicle/pedestrian 215 861 0.17 0.92
2022 Illinois Highway Safety Improvement Program

Page 33 of 41

SHSP Emphasis Area Targeted Crash 

Type

Number of 

Fatalities

(5-yr avg)

Number of 

Serious 

Injuries

(5-yr avg)

Fatality Rate

 (per HMVMT)

(5-yr avg)

Serious Injury 

Rate

 (per HMVMT)

(5-yr avg)

Roadway Departure 620 2,906 0.54 2.96

Speeding/Agressive Driving 564 3,525 0.47 3.87

Highway-Railroad Grade 

Crossing

8 9 0.01 0.01

Unrestrained Occupants 340 902 0.26 0.75

Work Zones 20 161 0.03 0.41

Young Driver 204 1,654 0.14 1.68

Animal Vehicle/animal 7 137 0.01 0.15

Wrong Way Driving 126 470 0.09 0.41
2022 Illinois Highway Safety Improvement Program

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0

100

200

300

400

500

600

700

800

900

Fatalities

Number of Fatalities 

5 Year Average

2013-2017 2014-2018 2015-2019 2016-2020 2017-2021

0

1000

2000

3000

4000

5000

6000

Serious Injuries

Number of Serious Injuries 

5 Year Average

2013-2017 2014-2018 2015-2019 2016-2020 2017-2021
2022 Illinois Highway Safety Improvement Program

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0

0.1

0.2

0.3

0.4

0.5

0.6

Fatality Rate

Fatality Rate (per HMVMT) 

5 Year Average

2013-2017 2014-2018 2015-2019 2016-2020 2017-2021

0

1

2

3

4

5

6

Serious Injury Rate

Serious Injury Rate (per HMVMT) 

5 Year Average

2013-2017 2014-2018 2015-2019 2016-2020 2017-2021
2022 Illinois Highway Safety Improvement Program

Page 36 of 41

Project Effectiveness

Provide the following information for previously implemented projects that the State evaluated this reporting period. 
2022 Illinois Highway Safety Improvement Program

Page 37 of 41

Compliance Assessment

What date was the State’s current SHSP approved by the Governor or designated State representative? 

 07/01/2022

What are the years being covered by the current SHSP? 

From: 2022 To: 2026

When does the State anticipate completing it’s next SHSP update? 

 2027

IDOT's new 2022 SHSP can be viewed here: https://idot.illinois.gov/Assets/uploads/files/Transportation-System/Manuals-Guides-&-Handbooks/Safety/Strategic%20Highway%20Safety%20Plan%202022.pdf 

Provide the current status (percent complete) of MIRE fundamental data elements collection efforts using the table below. 

*Based on Functional Classification (MIRE 1.0 Element Number) [MIRE 2.0 Element Number]

ROAD TYPE *MIRE NAME (MIRE 

NO.)

NON LOCAL PAVED

ROADS - SEGMENT

NON LOCAL PAVED

ROADS - INTERSECTION

NON LOCAL PAVED

ROADS - RAMPS LOCAL PAVED ROADS UNPAVED ROADS

STATE NON-STATE STATE NON-STATE STATE NON-STATE STATE NON-STATE STATE NON-STATE

ROADWAY SEGMENT Segment Identifier 

(12) [12]

100 100 100 100 100 100

Route Number (8) 

[8]

100 100

Route/Street Name 

(9) [9]

100 100

Federal Aid/Route 

Type (21) [21]

100 100

Rural/Urban 

Designation (20) [20]

100 100 100 100

Surface Type (23) 

[24]

100 100 100 100

Begin Point 

Segment Descriptor 

(10) [10]

100 100 100 100 100 100

End Point Segment 

Descriptor (11) [11]

100 100 100 100 100 100

Segment Length 

(13) [13]

100 100

Direction of 

Inventory (18) [18]

100 100
2022 Illinois Highway Safety Improvement Program

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ROAD TYPE *MIRE NAME (MIRE 

NO.)

NON LOCAL PAVED

ROADS - SEGMENT

NON LOCAL PAVED

ROADS - INTERSECTION

NON LOCAL PAVED

ROADS - RAMPS LOCAL PAVED ROADS UNPAVED ROADS

STATE NON-STATE STATE NON-STATE STATE NON-STATE STATE NON-STATE STATE NON-STATE

Functional Class 

(19) [19]

100 100 100 100 100 100

Median Type (54) 

[55]

100 100

Access Control (22) 

[23]

100 100

One/Two Way 

Operations (91) [93]

100 100

Number of Through 

Lanes (31) [32]

100 100 100 100

Average Annual 

Daily Traffic (79) [81]

100 100 100 100

AADT Year (80) [82] 100 100

Type of 

Governmental 

Ownership (4) [4]

100 100 100 100 100 100

INTERSECTION Unique Junction 

Identifier (120) [110]

100 100

Location Identifier 

for Road 1 Crossing 

Point (122) [112]

100 100

Location Identifier 

for Road 2 Crossing 

Point (123) [113]

100 100

Intersection/Junction 

Geometry (126) 

[116]

100 100

Intersection/Junction 

Traffic Control (131) 

[131]

100 100

AADT for Each 

Intersecting Road 

(79) [81]

100 100

AADT Year (80) [82] 100 100

Unique Approach 

Identifier (139) [129]

100 100

INTERCHANGE/RAMP Unique Interchange 

Identifier (178) [168]

100 100
2022 Illinois Highway Safety Improvement Program

Page 39 of 41

ROAD TYPE *MIRE NAME (MIRE 

NO.)

NON LOCAL PAVED

ROADS - SEGMENT

NON LOCAL PAVED

ROADS - INTERSECTION

NON LOCAL PAVED

ROADS - RAMPS LOCAL PAVED ROADS UNPAVED ROADS

STATE NON-STATE STATE NON-STATE STATE NON-STATE STATE NON-STATE STATE NON-STATE

Location Identifier 

for Roadway at 

Beginning of Ramp 

Terminal (197) [187]

100 100

Location Identifier 

for Roadway at 

Ending Ramp 

Terminal (201) [191]

100 100

Ramp Length (187) 

[177]

100 100

Roadway Type at 

Beginning of Ramp 

Terminal (195) [185]

100 100

Roadway Type at 

End Ramp Terminal 

(199) [189]

100 100

Interchange Type 

(182) [172]

100 100

Ramp AADT (191) 

[181]

100 100

Year of Ramp AADT 

(192) [182]

100 100

Functional Class 

(19) [19]

100 100

Type of 

Governmental 

Ownership (4) [4]

100 100

Totals (Average Percent Complete): 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00

*Based on Functional Classification (MIRE 1.0 Element Number) [MIRE 2.0 Element Number]

Describe actions the State will take moving forward to meet the requirement to have complete access to the MIRE fundamental data elements on all public roads by September 30, 2026. 

We have already met the requirements and therefore do not need to take further actions.
2022 Illinois Highway Safety Improvement Program

Page 40 of 41

Optional Attachments

Program Structure:

SAFETY 1.06 - Safety Engineering Policy Memorandum.pdf

Project Implementation:

Safety Performance:

Evaluation:

Compliance Assessment:
2022 Illinois Highway Safety Improvement Program

Page 41 of 41

Glossary

5 year rolling average: means the average of five individuals, consecutive annual points of data 

(e.g. annual fatality rate).

Emphasis area: means a highway safety priority in a State’s SHSP, identified through a data-driven, 

collaborative process.

Highway safety improvement project: means strategies, activities and projects on a public road 

that are consistent with a State strategic highway safety plan and corrects or improves a hazardous 

road location or feature or addresses a highway safety problem.

HMVMT: means hundred million vehicle miles traveled.

Non-infrastructure projects: are projects that do not result in construction. Examples of noninfrastructure projects include road safety audits, transportation safety planning activities, 

improvements in the collection and analysis of data, education and outreach, and enforcement 

activities.

Older driver special rule: applies if traffic fatalities and serious injuries per capita for drivers and 

pedestrians over the age of 65 in a State increases during the most recent 2-year period for which 

data are available, as defined in the Older Driver and Pedestrian Special Rule Interim Guidance 

dated February 13, 2013.

Performance measure: means indicators that enable decision-makers and other stakeholders to 

monitor changes in system condition and performance against established visions, goals, and 

objectives.

Programmed funds: mean those funds that have been programmed in the Statewide Transportation 

Improvement Program (STIP) to be expended on highway safety improvement projects.

Roadway Functional Classification: means the process by which streets and highways are 

grouped into classes, or systems, according to the character of service they are intended to provide.

Strategic Highway Safety Plan (SHSP): means a comprehensive, multi-disciplinary plan, based on 

safety data developed by a State Department of Transportation in accordance with 23 U.S.C. 148.

Systematic: refers to an approach where an agency deploys countermeasures at all locations across 

a system.

Systemic safety improvement: means an improvement that is widely implemented based on high 

risk roadway features that are correlated with specific severe crash types.

Transfer: means, in accordance with provisions of 23 U.S.C. 126, a State may transfer from an 

apportionment under section 104(b) not to exceed 50 percent of the amount apportioned for the fiscal 

year to any other apportionment of the State under that section.