Illinois

Highway Safety Improvement Program

2013 Annual Report

Prepared by: IL
ii

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. 409 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.”
iii

Table of Contents

Disclaimer...................................................................................................................................................... ii

Executive Summary.......................................................................................................................................1

Introduction ..................................................................................................................................................2

Program Structure ........................................................................................................................................2

Program Administration ...........................................................................................................................2

Program Methodology..............................................................................................................................4

Progress in Implementing Projects.............................................................................................................18

Funds Programmed............................................................................................................................. 18

General Listing of Projects.................................................................................................................. 21

Progress in Achieving Safety Performance Targets....................................... Error! Bookmark not defined.

Overview of General Safety Trends....................................................... Error! Bookmark not defined.

Application of Special Rules................................................................... Error! Bookmark not defined.

Assessment of the Effectiveness of the Improvements (Program Evaluation) ..........................................50

SHSP Emphasis Areas............................................................................. Error! Bookmark not defined.

Groups of similar project types.............................................................. Error! Bookmark not defined.

Systemic Treatments ............................................................................. Error! Bookmark not defined.

Glossary.......................................................................................................................................................76
iv
2013 Illinois Highway Safety Improvement Program

1

Executive Summary

The Highway Safety Improvement Program is administered and monitored by the Illinois 

Department of Transportation Bureau of Safety Engineering. IDOT works with safety partners 

to direct limited program dollars to areas with the greatest potential for safety improvement 

on the transportation system. IDOT uses safety performance functions and the systemic 

approach for identifying areas of improvement. Projects are selected based on their potential 

to reduce fatal and severe crashes economically using the IDOT benefit-cost evaluation tool. 

This year IDOT increased funds to the local roadway system to address increasing fatalities on 

locally owned routes. Overall the program has been effective as there has been a consistent 

downward trend in fatalities and serious injuries. There was a slight increase in fatalities in 

2012 and the numbers seems to be less for 2013 and will be continually monitored. While 

progress is being made, Illinois continues to modify the approach to achieve Zero Fatalities on 

Illinois roadways. 
2013 Illinois Highway Safety Improvement Program

2

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 MAP-21 Reporting Guidance dated February 13, 2013 and consists 

of four sections: program structure, progress in implementing HSIP projects, 

progress in achieving safety performance targets, and assessment of the 

effectiveness of the improvements. 

Program Structure

Program Administration

How are Highway Safety Improvement Program funds allocated in a State? 

Central

District

Other

Describe how local roads are addressed as part of Highway Safety Improvement Program.

After identifying increasing fatalities on the local roadway system, the Illinois Department of 

Transportation increased focus on local roadways by launching the Local Road Safety Initiative 

targeted for all counties and MPO but focusing on those with the highest potential safety 

improvement opportunity. Elements of the program include technical support to develop 

county SHSPs that include crash data trees, heat maps and identification of site specific 

improvements using the FHWA Systemic Tool approach for identifying low cost safety 

improvements system-wide. In addition to system-wide improvements, we prepared FIVE 
2013 Illinois Highway Safety Improvement Program

3

PERCENT location for the local system to address high priority locations. In addition to 

technical support, the DOT coordinates safety 4E workshops that encourage coordination and 

training locals on HSIP best practices. Based on the technical support provided, local agencies 

apply for HSIP funds for implementation. The HSIP applications are reviewed in IDOT Central 

Office to approve projects. The participation continues to grow and the quality of applications 

have improved significantly. 

Identify which internal partners are involved with Highway Safety Improvement Program planning. 

Design

Planning

Maintenance

Operations

Governors Highway Safety Office

Other: Other-Local agencies

Briefly describe coordination with internal partners. 

Each District has a safety committee comprised of representative in design, planning and operations. 

This committee reviews crash data, performs field reviews, and identifies potential HSIP projects based 

on priority and safety needs.

The Districts review local HSIP applications and provide input and recommendations prior to submitting 

applications to IDOT Central Office. 

Identify which external partners are involved with Highway Safety Improvement Program planning. 

Metropolitan Planning Organizations

Governors Highway Safety Office
2013 Illinois Highway Safety Improvement Program

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Local Government Association

Other: Other-Local agencies

Other: Other-Law enforcement

Identify any program administration practices used to implement the HSIP that have changed since 

the last reporting period.

Multi-disciplinary HSIP steering committee

Other: Other-IDOT continues to use a safety committee to help administer the program

Describe any other aspects of Highway Safety Improvement Program Administration on which you 

would like to elaborate.

The districts and local agencies submit HSIP applications through the HSIP SharePoint site for review and 

approval by a central safety committee. 

Program Methodology

Select the programs that are administered under the HSIP. 

Median Barrier Intersection Safe Corridor

Horizontal Curve Bicycle Safety Rural State Highways

Skid Hazard Crash Data Red Light Running Prevention

Roadway Departure Low-Cost Spot Improvements Sign Replacement And 

Improvement
2013 Illinois Highway Safety Improvement Program

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Local Safety Pedestrian Safety Right Angle Crash

Left Turn Crash Shoulder Improvement Segments

Other: 

Program: Intersection

Date of Program Methodology: 6/30/2011

 

What data types were used in the program methodology? 

Crashes Exposure Roadway

All crashes Traffic Median width

Fatal crashes only Volume Horizontal curvature

Fatal and serious injury 

crashes only

Population Functional classification

Other Lane miles Roadside features

Other Other-Traffic control, urban 

versus rural areas, the number of 

intersection legs

What project identification methodology was used for this program? 

Crash frequency

Expected crash frequency with EB adjustment

Equivalent property damage only (EPDO Crash frequency)
2013 Illinois Highway Safety Improvement Program

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EPDO crash frequency with EB adjustment

Relative severity index

Crash rate

Critical rate

Level of service of safety (LOSS)

Excess expected crash frequency using SPFs

Excess expected crash frequency with the EB adjustment

Excess expected crash frequency using method of moments

Probability of specific crash types

Excess proportions of specific crash types

Other 

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

Yes

No

If yes, are local road projects identified using the same methodology as state roads?

Yes

No

If no, describe the methodology used to identify local road projects as part of this program.

Systemic risk based approaches and site specific crash history based approaches

How are highway safety improvement projects advanced for implementation?

Competitive application process

selection committee

Other 
2013 Illinois Highway Safety Improvement Program

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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).

Relative Weight in Scoring

Rank of Priority Consideration

Ranking based on B/C

Available funding 2

Incremental B/C

Ranking based on net benefit

Cost Effectiveness 1

Program: Roadway Departure

Date of Program Methodology: 6/30/2011

 

What data types were used in the program methodology? 

Crashes Exposure Roadway

All crashes Traffic Median width

Fatal crashes only Volume Horizontal curvature

Fatal and serious injury 

crashes only

Population Functional classification

Other Lane miles Roadside features
2013 Illinois Highway Safety Improvement Program

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Other Other 

What project identification methodology was used for this program? 

Crash frequency

Expected crash frequency with EB adjustment

Equivalent property damage only (EPDO Crash frequency)

EPDO crash frequency with EB adjustment

Relative severity index

Crash rate

Critical rate

Level of service of safety (LOSS)

Excess expected crash frequency using SPFs

Excess expected crash frequency with the EB adjustment

Excess expected crash frequency using method of moments

Probability of specific crash types

Excess proportions of specific crash types

Other-benefit to cost analysis

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

Yes

No

If yes, are local road projects identified using the same methodology as state roads?

Yes

No

If no, describe the methodology used to identify local road projects as part of this program.
2013 Illinois Highway Safety Improvement Program

9

Systemic risk based approaches and site specific crash history based approaches

How are highway safety improvement projects advanced for implementation?

Competitive application process

selection committee

Other 

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).

Relative Weight in Scoring

Rank of Priority Consideration

Ranking based on B/C

Available funding 2

Incremental B/C

Ranking based on net benefit

Cost Effectiveness 1

Program: Sign Replacement And Improvement

Date of Program Methodology: 6/30/2011

 

What data types were used in the program methodology? 
2013 Illinois Highway Safety Improvement Program

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Crashes Exposure Roadway

All crashes Traffic Median width

Fatal crashes only Volume Horizontal curvature

Fatal and serious injury 

crashes only

Population Functional classification

Other Lane miles Roadside features

Other Other 

What project identification methodology was used for this program? 

Crash frequency

Expected crash frequency with EB adjustment

Equivalent property damage only (EPDO Crash frequency)

EPDO crash frequency with EB adjustment

Relative severity index

Crash rate

Critical rate

Level of service of safety (LOSS)

Excess expected crash frequency using SPFs

Excess expected crash frequency with the EB adjustment

Excess expected crash frequency using method of moments

Probability of specific crash types

Excess proportions of specific crash types

Other-benefit cost analysis

Are local roads (non-state owned and operated) included or addressed in this program?
2013 Illinois Highway Safety Improvement Program

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Yes

No

If yes, are local road projects identified using the same methodology as state roads?

Yes

No

If no, describe the methodology used to identify local road projects as part of this program.

State routes are not eligible for this Rural Road Sign Upgrade Program

How are highway safety improvement projects advanced for implementation?

Competitive application process

selection committee

Other 

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).

Relative Weight in Scoring

Rank of Priority Consideration

Ranking based on B/C

Available funding 2

Incremental B/C

Ranking based on net benefit

Cost Effectiveness 1
2013 Illinois Highway Safety Improvement Program

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Program: Local Safety

Date of Program Methodology: 6/30/2011

 

What data types were used in the program methodology? 

Crashes Exposure Roadway

All crashes Traffic Median width

Fatal crashes only Volume Horizontal curvature

Fatal and serious injury 

crashes only

Population Functional classification

Other Lane miles Roadside features

Other Other 

What project identification methodology was used for this program? 

Crash frequency

Expected crash frequency with EB adjustment

Equivalent property damage only (EPDO Crash frequency)

EPDO crash frequency with EB adjustment

Relative severity index

Crash rate

Critical rate

Level of service of safety (LOSS)

Excess expected crash frequency using SPFs

Excess expected crash frequency with the EB adjustment

Excess expected crash frequency using method of moments
2013 Illinois Highway Safety Improvement Program

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Probability of specific crash types

Excess proportions of specific crash types

Other-Systemic Risk based approach, local knowledge

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

Yes

No

If yes, are local road projects identified using the same methodology as state roads?

Yes

No

If no, describe the methodology used to identify local road projects as part of this program.

State routes are not eligible for this program

How are highway safety improvement projects advanced for implementation?

Competitive application process

selection committee

Other 

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).

Relative Weight in Scoring

Rank of Priority Consideration

Ranking based on B/C
2013 Illinois Highway Safety Improvement Program

14

Available funding 2

Incremental B/C

Ranking based on net benefit

Cost Effectiveness 1

Program: Segments

Date of Program Methodology: 6/30/2011

 

What data types were used in the program methodology? 

Crashes Exposure Roadway

All crashes Traffic Median width

Fatal crashes only Volume Horizontal curvature

Fatal and serious injury 

crashes only

Population Functional classification

Other Lane miles Roadside features

Other Other-Number of lanes, urban 

versus rural, median type

What project identification methodology was used for this program? 

Crash frequency

Expected crash frequency with EB adjustment

Equivalent property damage only (EPDO Crash frequency)

EPDO crash frequency with EB adjustment
2013 Illinois Highway Safety Improvement Program

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Relative severity index

Crash rate

Critical rate

Level of service of safety (LOSS)

Excess expected crash frequency using SPFs

Excess expected crash frequency with the EB adjustment

Excess expected crash frequency using method of moments

Probability of specific crash types

Excess proportions of specific crash types

Other 

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

Yes

No

If yes, are local road projects identified using the same methodology as state roads?

Yes

No

If no, describe the methodology used to identify local road projects as part of this program.

Systemic risk based approaches and site specific crash history based approaches

How are highway safety improvement projects advanced for implementation?

Competitive application process

selection committee

Other 
2013 Illinois Highway Safety Improvement Program

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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).

Relative Weight in Scoring

Rank of Priority Consideration

Ranking based on B/C

Available funding 2

Incremental B/C

Ranking based on net benefit

Cost Effectiveness 1

What proportion of highway safety improvement program funds address systemic improvements? 

40

Highway safety improvment program funds are used to address which of the following systemic 

improvments?

Cable Median Barriers Rumble Strips

Traffic Control Device Rehabilitation Pavement/Shoulder Widening

Install/Improve Signing Install/Improve Pavement Marking and/or 

Delineation

Upgrade Guard Rails Clear Zone Improvements

Safety Edge Install/Improve Lighting
2013 Illinois Highway Safety Improvement Program

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Add/Upgrade/Modify/Remove Traffic Signal Other 

What process is used to identify potential countermeasures? 

Engineering Study

Road Safety Assessment

Other: 

Identify any program methodology practices used to implement the HSIP that have changed since the 

last reporting period.

Highway Safety Manual

Road Safety audits

Systemic Approach

Other: Other-We have been using the Highway Safety Manual, Road Safety Assessments and the 

Systemic Approach since 2007. 
2013 Illinois Highway Safety Improvement Program

18

Describe any other aspects of the Highway Safety Improvement Program methodology on which you 

would like to elaborate. 

We have been using the Highway Safety Manual, Road Safety Assessments and the Systemic Approach 

since 2007. 

Progress in Implementing Projects

Funds Programmed

Reporting period for Highway Safety Improvement Program funding.

Calendar Year

State Fiscal Year

Federal Fiscal Year

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

Funding Category Programmed* Obligated

HSIP (Section 148) 57100000 95 % 41200000 100 %

HRRRP (SAFETEA-LU) 3300000 5 % 100000 0 %

HRRR Special Rule

Penalty Transfer -

Section 154

Penalty Transfer –

Section 164

Incentive Grants - 

Section 163

Incentive Grants (Section 
2013 Illinois Highway Safety Improvement Program

19

406)

Other Federal-aid Funds 

(i.e. STP, NHPP)

State and Local Funds

Totals 60400000 100% 41300000 100%

How much funding is programmed to local (non-state owned and maintained) safety projects? 

$12,200,000.00

How much funding is obligated to local safety projects?

$8,900,000.00

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

$0.00

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

$0.00
2013 Illinois Highway Safety Improvement Program

20

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

period?

$0.00

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

period? 

$0.00

Discuss impediments to obligating Highway Safety Improvement Program funds and plans to 

overcome this in the future.

IDOT programs HSIP funds several years in advance where possible in order to allow lead time 

for planning, design and implementation. At the local level, funds must be obligated within two 

years to avoid unspent funds. We are preparing county safety plans and hosting local safety 

workshops to improve the quality and quantity of HSIP involvement at the local level. 

Describe any other aspects of the general Highway Safety Improvement Program implementation 

progress on which you would like to elaborate.

Overtime we continue to add systemic analysis and program improvements. The systemic 

approach continues to be a growing aspect of the HSIP program. 
2013 Illinois Highway Safety Improvement Program

21

General Listing of Projects

List each highway safety improvement project obligated during the reporting period. 

Project Improvement 

Category 

Outpu

t 

HSIP 

Cost

Total 

Cost

Fundin

g 

Catego

ry

Functiona

l 

Classificat

ion

AADT Spe

ed

Roadwa

y 

Owners

hip

Relationship to SHSP

Emphasis 

Area

Strategy

201112004.

xml

Intersection traffic 

control Modify traffic 

signal -

modernization/replac

ement

1 

Numb

ers

26240 41000 HSIP 

(Sectio

n 148)

Urban 

Minor 

Arterial

3320

0

45 State 

Highway 

Agency

Improvin

g the 

design 

and 

operation 

of 

highway 

intersecti

ons

Signalization, 

Signing

201201001-

1.xml

Roadway Pavement 

surface -

miscellaneous

10 

Miles

21824

0

34100

0

HSIP 

(Sectio

n 148)

Rural 

Principal 

Arterial -

Other

3700 50 State 

Highway 

Agency

Keeping 

vehicles 

in the 

roadway

Pavement

201201002.

xml

Intersection 

geometry 

Intersection 

geometry - other

1 

Numb

ers

23680

0

37000

0

HSIP 

(Sectio

n 148)

Urban 

Minor 

Arterial

2060

0

45 State 

Highway 

Agency

Improvin

g the 

design 

and 

operation 

of 

Intersection 

Geometry
2013 Illinois Highway Safety Improvement Program

22

highway 

intersecti

ons

201201004.

xml

Intersection 

geometry 

Intersection 

geometry - other

1 

Numb

ers

21760

0

34000

0

HSIP 

(Sectio

n 148)

Urban 

Principal 

Arterial -

Other

2510

0

45 State 

Highway 

Agency

Improvin

g the 

design 

and 

operation 

of 

highway 

intersecti

ons

Intersection 

Geometry

201201006.

xml

Shoulder treatments 

Widen shoulder -

paved or other

10 

Miles

12257

28

19152

00

HSIP 

(Sectio

n 148)

Rural 

Minor 

Arterial

8200 55 State 

Highway 

Agency

Keeping 

vehicles 

in the 

roadway

Pavement,Pave

ment 

Treatments, 

Pavement 

marking

201201007.

xml

Roadway Rumble 

strips - edge or 

shoulder

10 

Miles

12480

0

19500

0

HSIP 

(Sectio

n 148)

Rural 

Principal 

Arterial -

Interstate

2450

0

65 State 

Highway 

Agency

Keeping 

vehicles 

in the 

roadway

Pavement 

Marking

201202001.

xml

Intersection 

geometry Auxiliary 

lanes - add left-turn 

lane

1 

Numb

ers

54400

0

85000

0

HSIP 

(Sectio

n 148)

Rural 

Principal 

Arterial -

Other

8950 50 State 

Highway 

Agency

Improvin

g the 

design 

and 

operation 

of 

Intersection 

Geometry
2013 Illinois Highway Safety Improvement Program

23

highway 

intersecti

ons

201202002.

xml

Lighting Intersection 

lighting

1 

Numb

ers

65000

0

65000

0

HSIP 

(Sectio

n 148)

Urban 

Principal 

Arterial -

Other

3710

0

45 State 

Highway 

Agency

Improvin

g the 

design 

and 

operation 

of 

highway 

intersecti

ons

Intersection 

Geometry, 

Lighting, 

Signalization

201202003-

1.xml

Roadway Rumble 

strips - edge or 

shoulder

10 

Miles

75264

0

11760

00

HSIP 

(Sectio

n 148)

Rural 

Minor 

Arterial

5400 55 State 

Highway 

Agency

Keeping 

vehicles 

in the 

roadway

Pavement 

Marking, 

Pavement 

treatments

201202004.

xml

Roadway Rumble 

strips - edge or 

shoulder

10 

Miles

25440

00

25440

00

HSIP 

(Sectio

n 148)

Rural 

Minor 

Arterial

9000 50 State 

Highway 

Agency

Increasin

g driver 

safety 

awarenes

s

Pavement 

Treatments

201203001.

xml

Intersection traffic 

control Modify 

control - two-way 

stop to all-way stop

1 

Numb

ers

52000

0

52000

0

HSIP 

(Sectio

n 148)

Rural 

Minor 

Arterial

0 45 State 

Highway 

Agency

Improvin

g the 

design 

and 

operation 

of 

Pavement
2013 Illinois Highway Safety Improvement Program

24

highway 

intersecti

ons

201203003.

xml

Intersection traffic 

control Modify traffic 

signal - add additional 

signal heads

1 

Numb

ers

12150

00

13500

00

HSIP 

(Sectio

n 148)

Urban 

Principal 

Arterial -

Other

2100

00

45 State 

Highway 

Agency

Improvin

g the 

design 

and 

operation 

of 

highway 

intersecti

ons

Signalization

201203004.

xml

Intersection traffic 

control Modify traffic 

signal - add additional 

signal heads

1 

Numb

ers

10800

00

12000

00

HSIP 

(Sectio

n 148)

Urban 

Principal 

Arterial -

Other

1367

00

30 State 

Highway 

Agency

Improvin

g the 

design 

and 

operation 

of 

highway 

intersecti

ons

Signalization

201203007.

xml

Intersection traffic 

control Modify traffic 

signal - add additional 

signal heads

1 

Numb

ers

10350

00

11500

00

HSIP 

(Sectio

n 148)

Urban 

Principal 

Arterial -

Other

4600

0

35 State 

Highway 

Agency

Improvin

g the 

design 

and 

operation 

of 

Pavement, 

Signalization
2013 Illinois Highway Safety Improvement Program

25

highway 

intersecti

ons

201203008.

xml

Intersection traffic 

control Modify traffic 

signal - add additional 

signal heads

1 

Numb

ers

18000

00

20000

00

HSIP 

(Sectio

n 148)

Urban 

Principal 

Arterial -

Other

6900

0

35 State 

Highway 

Agency

Improvin

g the 

design 

and 

operation 

of 

highway 

intersecti

ons

Signalization

201203009.

xml

Intersection traffic 

control Modify 

control - all-way stop 

to roundabout

1 

Numb

ers

52830

00

58700

00

HSIP 

(Sectio

n 148)

Rural 

Principal 

Arterial -

Other

1165

0

55 State 

Highway 

Agency

Improvin

g the 

design 

and 

operation 

of 

highway 

intersecti

ons

Pavement 

Treatments, 

Roadside

201203010.

xml

Intersection traffic 

control Modify traffic 

signal -

modernization/replac

ement

1 

Numb

ers

18000

00

20000

00

HSIP 

(Sectio

n 148)

Urban 

Principal 

Arterial -

Other

3400

0

45 State 

Highway 

Agency

Improvin

g the 

design 

and 

operation 

of 

Signalization, 

Pavement
2013 Illinois Highway Safety Improvement Program

26

highway 

intersecti

ons

201203011.

xml

Shoulder treatments 

Widen shoulder -

paved or other

10 

Miles

16200

00

18000

00

HSIP 

(Sectio

n 148)

Rural 

Minor 

Arterial

1170

0

50 State 

Highway 

Agency

Keeping 

vehicles 

in the 

roadway

Pavement 

Treatments

201203012-

1.xml

Roadway Pavement 

surface - high friction 

surface

10 

Miles

11700

00

13000

00

HSIP 

(Sectio

n 148)

Urban 

Minor 

Arterial

1220

0

45 State 

Highway 

Agency

Keeping 

vehicles 

in the 

roadway

Pavement 

Treatments

201203013.

xml

Intersection traffic 

control Modify traffic 

signal -

modernization/replac

ement

1 

Numb

ers

15750

00

17500

00

HSIP 

(Sectio

n 148)

Urban 

Principal 

Arterial -

Other

2575

0

55 State 

Highway 

Agency

Improvin

g the 

design 

and 

operation 

of 

highway 

intersecti

ons

Signalization, 

Pavement 

Treatment

201203014.

xml

Intersection traffic 

control Modify traffic 

signal - add additional 

signal heads

1 

Numb

ers

10800

00

12000

00

HSIP 

(Sectio

n 148)

Urban 

Principal 

Arterial -

Other

3740

0

35 State 

Highway 

Agency

Improvin

g the 

design 

and 

operation 

of 

highway 

Signalization, 

Pavement 

Treatment
2013 Illinois Highway Safety Improvement Program

27

intersecti

ons

201203015.

xml

Intersection traffic 

control Modify traffic 

signal - add additional 

signal heads

1 

Numb

ers

63000

0

70000

0

HSIP 

(Sectio

n 148)

Urban 

Principal 

Arterial -

Other

8000

0

40 State 

Highway 

Agency

Improvin

g the 

design 

and 

operation 

of 

highway 

intersecti

ons

Signalization

201203016.

xml

Intersection traffic 

control Modify traffic 

signal - add additional 

signal heads

1 

Numb

ers

90000

0

10000

00

HSIP 

(Sectio

n 148)

Urban 

Principal 

Arterial -

Other

4610

0

30 State 

Highway 

Agency

Improvin

g the 

design 

and 

operation 

of 

highway 

intersecti

ons

Signalization

201203019-

1.xml

Intersection traffic 

control Modify traffic 

signal - add additional 

signal heads

1 

Numb

ers

96300

0

10700

00

HSIP 

(Sectio

n 148)

Urban 

Minor 

Arterial

0 45 State 

Highway 

Agency

Improvin

g the 

design 

and 

operation 

of 

highway 

Signalization
2013 Illinois Highway Safety Improvement Program

28

intersecti

ons

201203020.

xml

Intersection traffic 

control Modify traffic 

signal - add additional 

signal heads

1 

Numb

ers

18000

00

20000

00

HSIP 

(Sectio

n 148)

Urban 

Principal 

Arterial -

Other

1951

00

40 State 

Highway 

Agency

Keeping 

vehicles 

in the 

roadway

Pavement,Pave

ment 

Treatments, 

Pavement 

marking

201204001-

1.xml

Shoulder treatments 

Widen shoulder -

paved or other

10 

Miles

20326

40

31760

00

HSIP 

(Sectio

n 148)

Rural 

Minor 

Arterial

1850 55 State 

Highway 

Agency

Keeping 

vehicles 

in the 

roadway

Pavement,Pave

ment 

Treatments, 

Pavement 

marking

201204002.

xml

Shoulder treatments 

Widen shoulder -

paved or other

10 

Miles

96000 15000

0

HSIP 

(Sectio

n 148)

Rural 

Minor 

Arterial

2350 55 State 

Highway 

Agency

Keeping 

vehicles 

in the 

roadway

Pavement 

Treatments, 

Pavement 

marking

201205001.

xml

Intersection traffic 

control Modify traffic 

signal -

modernization/replac

ement

1 

Numb

ers

20000

0

20000

0

HSIP 

(Sectio

n 148)

Urban 

Minor 

Arterial

1202

5

45 State 

Highway 

Agency

Making 

truck 

travel 

safer

Signalization

201205002.

xml

Intersection traffic 

control Intersection 

flashers - add 

overhead 

1 

Numb

ers

50000 50000 HSIP 

(Sectio

n 148)

Rural 

Minor 

Arterial

4900 45 State 

Highway 

Agency

Reducing 

vehicletrain 

crashes

Signalization, 

Lighting, 

Signing
2013 Illinois Highway Safety Improvement Program

29

(continuous)

201205003.

xml

Intersection traffic 

control Modify traffic 

signal - add additional 

signal heads

1 

Numb

ers

25000 25000 HSIP 

(Sectio

n 148)

Urban 

Principal 

Arterial -

Other

1820

0

45 State 

Highway 

Agency

Improvin

g the 

design 

and 

operation 

of 

highway 

intersecti

ons

Signalization

201206001.

xml

Alignment Horizontal 

curve realignment

1 

Numb

ers

19200

00

30000

00

HSIP 

(Sectio

n 148)

Rural 

Minor 

Arterial

6700 55 State 

Highway 

Agency

Keeping 

vehicles 

in the 

roadway

Curves

201207002.

xml

Roadside Barrier -

cable

10 

Miles

59600

00

59600

00

HSIP 

(Sectio

n 148)

Rural 

Principal 

Arterial -

Interstate

3440

0

65 State 

Highway 

Agency

Keeping 

vehicles 

in the 

roadway

Median 

Treatments, 

Roadside

201207003.

xml

Intersection traffic 

control Modify traffic 

signal timing - adjust 

clearance interval 

(yellow change 

and/or all-red)

1 

Numb

ers

30000

0

30000

0

HSIP 

(Sectio

n 148)

Urban 

Minor 

Arterial

1000

0

45 State 

Highway 

Agency

Improvin

g the 

design 

and 

operation 

of 

highway

intersecti

Signalization, 

Intersection 

Geometry
2013 Illinois Highway Safety Improvement Program

30

ons

201208001-

1.xml

Roadway delineation 

Raised pavement 

markers

10 

Miles

70000

00

70000

00

HSIP 

(Sectio

n 148)

Rural 

Principal 

Arterial -

Other

8100 55 State 

Highway 

Agency

Keeping 

vehicles 

in the 

roadway

Pavement 

Marking, 

Pavement 

201209001.

xml

Roadway Rumble 

strips - edge or 

shoulder

10 

Miles

69000 69000 HSIP 

(Sectio

n 148)

Rural 

Minor 

Arterial

6700 55 State 

Highway 

Agency

Keeping 

vehicles 

in the 

roadway

Pavement 

Marking

201209002.

xml

Roadway Rumble 

strips - edge or 

shoulder

10 

Miles

76000

0

76000

0

HSIP 

(Sectio

n 148)

Rural 

Minor 

Arterial

2800 55 State 

Highway 

Agency

Keeping 

vehicles 

in the 

roadway

Pavement 

Treatments, 

Rumble Strips

201209003.

xml

Roadway Rumble 

strips - edge or 

shoulder

10 

Miles

63000

0

63000

0

HSIP 

(Sectio

n 148)

Rural 

Minor 

Arterial

1200 55 State 

Highway 

Agency

Reducing 

impaired 

driving

Pavement 

Treatments, 

Pavement 

marking

201209004.

xml

Roadway Rumble 

strips - edge or 

shoulder

10 

Miles

50250

00

50250

00

HSIP 

(Sectio

n 148)

Rural 

Principal 

Arterial -

Other

3350 55 State 

Highway 

Agency

Keeping 

vehicles 

in the 

roadway

Pavement 

Marking, 

Pavement 

Treatments

201209005.

xml

Intersection traffic 

control Intersection 

flashers - add 

overhead 

1 

Numb

ers

16500 16500 HSIP 

(Sectio

n 148)

Urban 

Principal 

Arterial -

2950

0

0 State 

Highway 

Agency

Curbing 

aggressiv

e driving

Signing
2013 Illinois Highway Safety Improvement Program

31

(continuous) Interstate

201209007.

xml

Roadside Barriermetal10 

Miles

10560

00

10560

00

HSIP 

(Sectio

n 148)

Urban 

Principal 

Arterial -

Interstate

5234

0

55 State 

Highway 

Agency

Keeping 

vehicles 

in the 

roadway

Roadside

201209008.

xml

Roadside Barrier -

cable

10 

Miles

12240

00

12240

00

HSIP 

(Sectio

n 148)

Rural 

Principal 

Arterial -

Interstate

2140

0

65 State 

Highway 

Agency

Keeping 

vehicles 

in the 

roadway

Median 

Treatments

201209009.

xml

Lighting Intersection 

lighting

1 

Numb

ers

62500

0

62500

0

HSIP 

(Sectio

n 148)

Rural 

Principal 

Arterial -

Other

7750 50 State 

Highway 

Agency

Keeping 

vehicles 

in the 

roadway

Lighting, 

Pavement 

Treatments

201210001.

xml

Roadside Barrier end 

treatments (crash 

cushions, terminals)

10 

Miles

41952

0

41952

0

HSIP 

(Sectio

n 148)

Urban 

Principal 

Arterial -

Interstate

3910

0

65 State 

Highway 

Agency

Keeping 

vehicles 

in the 

roadway

Roadside
2013 Illinois Highway Safety Improvement Program

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Progress in Achieving Safety Performance Targets

Overview of General Safety Trends

Present data showing the general highway safety trends in the state for the past five years. 

Performance Measures* 2005 2006 2007 2008 2009

Number of fatalities 1335 1253 1164 1077 1010

Number of serious injuries 17816 16834 15708 14571 13260

Fatality rate (per HMVMT) 1.24 1.16 1.09 1.01 0.96

Serious injury rate (per HMVMT) 16.57 15.67 14.71 13.7 12.55

*Performance measure data is presented using a five-year rolling average.
2013 Illinois Highway Safety Improvement Program

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To the maximum extent possible, present performance measure* data by functional classification and ownership. 

Year - 2012

Function Classification Number of fatalities Number of serious injuries Fatality rate (per HMVMT) Serious injury rate (per HMVMT)

RURAL PRINCIPAL 

ARTERIAL - INTERSTATE

0 0 0 0

RURAL PRINCIPAL 

ARTERIAL - OTHER 

FREEWAYS AND 

EXPRESSWAYS

0 0 0 0

RURAL PRINCIPAL 

ARTERIAL - OTHER

0 0 0 0

RURAL MINOR 

ARTERIAL

0 0 0 0

RURAL MINOR 

COLLECTOR

0 0 0 0

RURAL MAJOR 

COLLECTOR

0 0 0 0

RURAL LOCAL ROAD OR 

STREET

0 0 0 0

URBAN PRINCIPAL 0 0 0 0
2013 Illinois Highway Safety Improvement Program

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ARTERIAL - INTERSTATE

URBAN PRINCIPAL 

ARTERIAL - OTHER 

FREEWAYS AND 

EXPRESSWAYS

0 0 0 0

URBAN PRINCIPAL 

ARTERIAL - OTHER

0 0 0 0

URBAN MINOR 

ARTERIAL

0 0 0 0

URBAN MINOR 

COLLECTOR

0 0 0 0

URBAN MAJOR 

COLLECTOR

0 0 0 0

URBAN LOCAL ROAD 

OR STREET

0 0 0 0

OTHER 0 0 0 0

INTERSTATE 0 0 0 0

URBAN COLLECTOR 0 0 0 0

URBAN COLLECTOR 0 0 0 0
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Year - 2012

Roadway Ownership Number of fatalities Number of serious injuries Fatality rate (per HMVMT) Serious injury rate (per HMVMT)

STATE HIGHWAY 

AGENCY

0 0 0 0

COUNTY HIGHWAY 

AGENCY

0 0 0 0

TOWN OR TOWNSHIP 

HIGHWAY AGENCY

0 0 0 0

CITY OF 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
2013 Illinois Highway Safety Improvement Program

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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

OTHER 0 0 0 0

OTHER 0 0 0 0
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47

This section will be added.
2013 Illinois Highway Safety Improvement Program

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Describe any other aspects of the general highway safety trends on which you would like to elaborate.

IDOT has prepared fatality and serious injury and fatality rate and serious injury rate trend line 

graphs and bar charts for state and local roadways by emphasis area. These allow us to 

determine areas of focus for the future and determine areas that are working well.

Application of Special Rules

Present the rate of traffic fatalities and serious injuries per capita for drivers and pedestrians over the 

age of 65. 

Older Driver

Performance Measures

2008 2009 2010 2011 2012

Fatality rate (per capita) 1.34 1.19 1.13 1 0.98

Serious injury rate (per 

capita)

9.19 8.69 8.26 7.77 7.19

Fatality and serious injury 

rate (per capita)

10.52 9.88 9.39 8.77 8.18

*Performance measure data is presented using a five-year rolling average.

see attachment FHWA_HSIP_OlderDriverPedsHSIP-14-06.xlsx
2013 Illinois Highway Safety Improvement Program

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data Data from 2003 to 2011 was used for this analysis. Therefore this represents rolling 

averages for years 2005 to 2009.

Does the older driver special rule apply to your state? 

No
2013 Illinois Highway Safety Improvement Program

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Assessment of the Effectiveness of the Improvements (Program 

Evaluation)

What indicators of success can you use to demonstrate effectiveness and success in the Highway 

Safety Improvement Program?

None

Benefit/cost

Policy change

Other: Other-fatalities, serious injuries and fatality rate and serious injury rates are declining based 

on a 5 year rolling average 
2013 Illinois Highway Safety Improvement Program

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What significant programmatic changes have occurred since the last reporting period? 

Shift Focus to Fatalities and Serious Injuries

Include Local Roads in Highway Safety Improvement Program

Organizational Changes

None

Other: Other-The systemic approach is used more frequently.
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Briefly describe significant program changes that have occurred since the last reporting period. 

There are not significant program changes. Additional emphasis has been placed on the local 

roadway system and the systemic approach is had more widespread implementation. 
2013 Illinois Highway Safety Improvement Program

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SHSP Emphasis Areas
2013 Illinois Highway Safety Improvement Program

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For each SHSP emphasis area that relates to the HSIP, present trends in emphasis area performance measures. 

Year - 2012

HSIP-related SHSP 

Emphasis Areas

Target 

Crash Type

Number of 

fatalities

Number of 

serious injuries

Fatality rate (per 

HMVMT)

Serious injury rate 

(per HMVMT)

Other1Other2Other3

Instituting graduated 

licensing for younger 

drivers

0 0 0 0 0 0 0

Ensuring drivers are 

licensed and fully 

competent

0 0 0 0 0 0 0

Sustaining proficiency 

in older drivers

0 0 0 0 0 0 0

Curbing aggressive 

driving

0 0 0 0 0 0 0

Reducing impaired 

driving

0 0 0 0 0 0 0

Keeping drivers alert 0 0 0 0 0 0 0

Increasing driver 

safety awareness

0 0 0 0 0 0 0

Increasing seat belt 

use and improving 

0 0 0 0 0 0 0
2013 Illinois Highway Safety Improvement Program

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airbag effectiveness

Making walking and 

street crossing easier

0 0 0 0 0 0 0

Ensuring safer bicycle 

travel

0 0 0 0 0 0 0

Improving motorcycle 

safety and increasing 

motorcycle awareness

0 0 0 0 0 0 0

Making truck travel 

safer

0 0 0 0 0 0 0

Increasing safety 

enhancements in 

vehicles

0 0 0 0 0 0 0

Reducing vehicle-train 

crashes

0 0 0 0 0 0 0

Keeping vehicles in the 

roadway

0 0 0 0 0 0 0

Minimizing the 

consequences of 

leaving the road

0 0 0 0 0 0 0

Improving the design 

and operation of 

0 0 0 0 0 0 0
2013 Illinois Highway Safety Improvement Program

56

highway intersections

Reducing head-on and 

across-median crashes

0 0 0 0 0 0 0

Designing safer work 

zones

0 0 0 0 0 0 0

Enhancing emergency 

medical capabilities to 

increase survivability

0 0 0 0 0 0 0

Improving information 

and decision support 

systems

0 0 0 0 0 0 0

Creating more 

effective processes 

and safety 

management systems

0 0 0 0 0 0 0
2013 Illinois Highway Safety Improvement Program

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2013 Illinois Highway Safety Improvement Program

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We will continue to calculate and quality control performance measures for tracking trends. This table is currently incomplete. 
2013 Illinois Highway Safety Improvement Program

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Groups of similar project types
2013 Illinois Highway Safety Improvement Program

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Present the overall effectiveness of groups of similar types of projects.

Year - 2012

HSIP Sub-program 

Types

Target 

Crash Type

Number of 

fatalities

Number of 

serious injuries

Fatality rate (per 

HMVMT)

Serious injury rate 

(per HMVMT)

Other1Other2Other3

Intersection 0 0 0 0 0 0 0

Sign Replacement 

And Improvement

0 0 0 0 0 0 0

Segments 0 0 0 0 0 0 0

Local Safety 0 0 0 0 0 0 0

Roadway 

Departure

0 0 0 0 0 0 0
2013 Illinois Highway Safety Improvement Program

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2013 Illinois Highway Safety Improvement Program

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2013 Illinois Highway Safety Improvement Program

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While we track 5 years of trends we do not typically track 5 year rolling averages for each safety program. This section will be 

enhanced. 
2013 Illinois Highway Safety Improvement Program

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Systemic Treatments
2013 Illinois Highway Safety Improvement Program

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Present the overall effectiveness of systemic treatments.. 

Year - 2012

Systemic 

improvement

Target 

Crash Type

Number of 

fatalities

Number of 

serious injuries

Fatality rate (per 

HMVMT)

Serious injury rate 

(per HMVMT)

Other1Other2Other3

Data limitations do 

not allow for some 

of these 

calculations. 

0 0 0 0 0 0 0
2013 Illinois Highway Safety Improvement Program

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Describe any other aspects of the overall Highway Safety Improvement Program effectiveness on 

which you would like to elaborate. 

We have prepared studies to evaluate the effectiveness of cable median barrier installation 

and edgeline rumble strips. These detailed studies can be provided if needed. 

Research is currently underway to study the effectiveness of flashing yellow arrow and 

intersection channelization. These results can be provided when they are available. 

Wrong way driving systemic improvements are currently being installed. When the 

countermeasures have been in place for a minimum of three years, we will evaluate their

effectiveness and share the results with others to help advance the science of safety and save 

lives.
2013 Illinois Highway Safety Improvement Program

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Provide project evaluation data for completed projects (optional). 

Location Functional 

Class

Improvement 

Category

Improvement 

Type

BefFatalBefSerious 

Injury

BefOther 

Injury

BefPDOBefTotalAftFatalAftSerious 

Injury

AftOther 

Injury

AftPDOAftTotalEvaluation 

Results 

(Benefit/ 

Cost Ratio)

Various Rural 

Principal 

Arterial -

Interstate

Roadside Barrier - cable 11 11 0 0 20
2013 Illinois Highway Safety Improvement Program

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Optional Attachments

Sections Files Attached

Assessment of the Effectiveness of the 

Improvements: Description of Overall 

Effectiveness

FHWA_HSIP_OlderDriverPedsHSIP-14-06.xlsx
2013 Illinois Highway Safety Improvement Program

76

Glossary

5 year rolling average means the average of five individual, 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. 

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.