Connecticut

Highway Safety Improvement Program

2015 Annual Report

Prepared by: CT
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.............................................................................................................................. 5

Progress in Implementing Projects............................................................................................................. 13

Funds Programmed............................................................................................................................. 13

General Listing of Projects.................................................................................................................. 16

Progress in Achieving Safety Performance Targets .................................................................................... 28

Overview of General Safety Trends........................................................................................................ 28

Application of Special Rules.................................................................................................................... 42

Assessment of the Effectiveness of the Improvements (Program Evaluation) ..........................................44

SHSP Emphasis Areas.............................................................................................................................. 45

Groups of similar project types............................................................................................................... 50

Systemic Treatments............................................................................................................................... 55

Project Evaluation................................................................................................................................... 61

Glossary....................................................................................................................................................... 63
2015 Connecticut Highway Safety Improvement Program

1

Executive Summary

The reporting period for 2015 is from October 1, 2013 to September 30, 2014.

The HSIP is administrated and managed by the Safety Engineering Section located within the Division of 

Traffic Engineering, Bureau of Engineering and Construction.

This reporting period, ConnDOT has obligated more systemic and systematic safety improvements in the 

HSIP program compared to past reporting periods. While ConnDOT's traditional site analysis approach, 

known as the suggested List of Surveillance Study Sites (SLOSSS), results in safety investments at specific 

locations, the systemic and systematic approach leads to widespread implementation of projects to 

reduce the potential for fatalities and/or serious injuries, whether or not crashes have occurred at any 

given site. Because many of CT's fatal and serious injury crashes are spread out across all public roads, 

the systematic/systemic approach provides an alternate method to identify and implement low-cost 

safety countermeasure addressing specific risk factors across the entire roadway network.

Systematic/systemic analysis is a compliment to site-specific analysis, and can be very effective in 

implementing low-cost safety improvements.

CT is currently updating its SHSP and it is likely that additional emphasis will be placed on systematic and 

systemic improvements.
2015 Connecticut 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.

Local Roads are addressed by the Local Road Accident Reduction Program (LRARP). The LRARP provides 

federal funding for safety-related improvements not on the state-numbered highway system, to address 

hazardous elements identified at specific locations and along roadway sections. The Crash Data and 

Analysis Office commenced coding all local road accidents effective with 2007 accidents and complete 

local road accident information is now available through December 2014. Since traffic volume data for 

the majority of local roads is not available, an analytical analysis of crashes on non-state maintained 
2015 Connecticut Highway Safety Improvement Program

3

roadways to determine project selection has not been possible. Therefore, the Department annually 

solicits the Regional Planning Organizations (RPO) for recommended improvements on behalf of their 

member towns, to address identified hazardous elements. These improvements may include signal 

enhancements, minor geometric improvements, roadside obstacles, sight line conditions, hazards to 

pedestrians and poor or unmarked roadways. In the future when more local road data is available, the 

methodology for selection of improvements under the LRARP will be reevaluated. In the interim, the 

Department has expanded the Local Road Program in order to consider system-wide improvement 

projects designed to address run-off-road fixed-object collisions on local roads. The project cost eligible 

for federal participation is currently capped at $500,000 per location. All locations are reviewed and 

investigated by the Division of Traffic Engineering and the Division of Highway Design.

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

Design

Planning

Maintenance

Operations

Governors Highway Safety Office

Other: Other-Traffic Engineering

Briefly describe coordination with internal partners. 

Responsibility for carrying out the administration of the HSIP within the Department is assigned to the 

Division of Traffic Engineering and the Bureau of Policy and Planning-Crash Data and Analysis Section. 

The Department actively collects and compiles crash data with the intent of addressing problematic 

conditions that are identified. Identification and surveillance of locations displaying higher than 

expected accident rates on the state highway system are accomplished primarily through a 

computerized surveillance system utilizing traffic record files maintained by the Bureau of Policy and 

Planning. Those files consist of (1) a crash record file, (2) an average daily traffic file, (3) an inventory of 
2015 Connecticut Highway Safety Improvement Program

4

certain roadway characteristics. The inventory file identifies locations as being either rural or urban, as 

either a section of highway, section of expressway, intersection with another state highway, intersection 

with a town road (or signalized drive) or expressway interchange and further by number of lanes and

control of access. Some groups having few locations are merged with similar groups. The Bureau of 

Policy and Planning runs a computer program utilizing the three files described above. The results are 

lists of locations that have a higher than expected crash rate. These lists are referred to as SLOSSS lists 

(Suggested List of Surveillance Study Sites). In that computer program, average crash rates and number 

of crashes are computed for the various groups of locations described in the preceding paragraph. Based 

upon those average values, a threshold of abnormally high numbers and rates is developed for each 

location. Locations equaling or exceeding the threshold are reviewed. The thresholds are changed 

occasionally based upon prior experience with these lists. The process described above is not intended 

to be the sole determinant in identifying locations having problematic characteristics. Many locations 

with crash rates not abnormally high will demonstrate crash type or severity patterns symptomatic of 

the problematic characteristic for a particular location. An example would be a pattern of run-off-theroad crashes at a curve. Some other locations may have design characteristics similar to a design 

characteristic determined to be problematic (e.g., rigid sign posts, poor sight line). These may also be 

considered for safety improvement.

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

Metropolitan Planning Organizations

Governors Highway Safety Office

Local Government Association

Other: Other-Safety Circuit Rider Program

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-The Department has begun investigating low cost systematic proven safety 

countermeasures to enhance the HSIP program
2015 Connecticut Highway Safety Improvement Program

5

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

would like to elaborate.

Projects can qualify for the Department's HSIP funds and placement on the HSIP Safety Project Plan 

when they are initiated from the following sources:

-Suggested List of Surveillance Study Sites (SLOSSS)

-Local Road Accident Reduction Program (LRARP)

-Railway-Highway Grade Crossing Program (RHGCP)

-Projects supporting SHSP Emphasis Areas

-Section 402/405 Safety Programs (NHTSA)

-Section 154 (Open Container Requirements)

-High Risk Rural Roads

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

Local Safety Pedestrian Safety Right Angle Crash

Left Turn Crash Shoulder Improvement Segments

Other: Other-spot 

improvement (SLOSSS)
2015 Connecticut Highway Safety Improvement Program

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Program: Local Safety

Date of Program Methodology: 7/1/2008

 

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-As supplied by the 

applicant

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
2015 Connecticut Highway Safety Improvement Program

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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.

Submittals by the regional planning organizations. The submittals that meet the program's criteria are 

funded.

How are highway safety improvement projects advanced for implementation?

Competitive application process

selection committee

Other 

Other-Submittals are checked for accuracy and if the improvement yields a b/c ratio greater than 1.0, 

the submittals are forwarded to financial to obtain funding

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
2015 Connecticut Highway Safety Improvement Program

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Ranking based on B/C 50

Available funding 50

Incremental B/C

Ranking based on net benefit

Other 

Program: Other-spot improvement (SLOSSS)

Date of Program Methodology: 1/1/1967

 

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
2015 Connecticut Highway Safety Improvement Program

9

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

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
2015 Connecticut Highway Safety Improvement Program

10

Ranking based on B/C

Available funding

Incremental B/C 100

Ranking based on net benefit

Other 

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

41

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

improvements?

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

Add/Upgrade/Modify/Remove Traffic Signal Other 

What process is used to identify potential countermeasures? 
2015 Connecticut Highway Safety Improvement Program

11

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: 

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

would like to elaborate. 

Projects can qualify for the ConnDOT's HSIP funds and placement on the HSIP Safety Project Plan when 

they are initiated from the following sources:

Suggested List of surveillance Study Sites (SLOSSS)

Local Road Accident Reduction Program (LRARP)

Projects supporting SHSP Emphasis

Section 402 Safety Projects (Highway Safety Programs-NHTSA)
2015 Connecticut Highway Safety Improvement Program

12

23 USC 154 (Open Container Requirements)

High Risk Rural Roads ( 23 USC 148(g)(1))
2015 Connecticut Highway Safety Improvement Program

13

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) 16322000 76 % 21097501 80 %

HRRRP (SAFETEA-LU)

HRRR Special Rule 3123580 15 % 3123580 12 %

Penalty Transfer -

Section 154

1990661 9 % 1990661 8 %

Penalty Transfer –

Section 164

Incentive Grants - 

Section 163

Incentive Grants 

(Section 406)

Other Federal-aid 

Funds (i.e. STP, NHPP)

State and Local Funds
2015 Connecticut Highway Safety Improvement Program

14

Totals 21436241 100% 26211742 100%

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

$5,840,660.00

How much funding is obligated to local safety projects?

$6,090,798.00

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

$1,095,000.00

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

$1,302,500.00

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

period?

$0.00
2015 Connecticut Highway Safety Improvement Program

15

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

period? 

$14,055,615.00

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

overcome this in the future.

There are numerous needs and deficiencies in CT and the HSIP is just one of ConnDOT's priorities. In 

some cases, safety projects are funded with NHPP & STPA monies because of the flexibility associated 

with those programs. 

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

progress on which you would like to elaborate.

The State's SHSP is currently be updated to meet the requirements of MAP-21.
2015 Connecticut Highway Safety Improvement Program

16

General Listing of Projects

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

Project Improvement Category Output HSIP 

Cost

Total 

Cost

Fundin

g 

Catego

ry

Functional 

Classificati

on

AAD

T

Spee

d

Roadway 

Ownership

Relationship to SHSP

Emphasis 

Area

Strategy

0170-

3269PL

Non-infrastructure 

Educational efforts

1 

Numbe

rs

45900

0

51000

0

HSIP 

(Sectio

n 148)

N/A 0 0 Town or 

Township 

Highway 

Agency

Data

0170-

3230P

E

Intersection traffic control 

Modify traffic signal -

modernization/replaceme

nt

20 

Numbe

rs

10000

00

10000

00

HSIP 

(Sectio

n 148)

Districtwid

e

0 0 State 

Highway 

Agency

Spot 

safety 

improvem

ent

improving 

the design 

and 

operation 

of hwy 

intersecti

ons

0012-

0095R

W

Roadway Roadway 

widening - curve 

1 

Numbe

rs

16650

0

18500

0

HSIP 

(Sectio

n 148)

Urban 

Minor 

Arterial

0 0 State 

Highway 

Agency

Spot 

safety 

improvem

ent

improving 

the design 

and 

operation 

of hwy 

intersecti

ons

0170-

3294P

Pedestrians and bicyclists 

Miscellaneous pedestrians 

1106 

Numbe

40000 40000 HSIP 

(Sectio

Districtwid 0 0 Town or 

Township 

Pedestrian enhancing 

pedestria
2015 Connecticut Highway Safety Improvement Program

17

E and bicyclists rs n 148) e Highway 

Agency

s n 

amenities

0170-

3295P

E

Pedestrians and bicyclists 

Miscellaneous pedestrians 

and bicyclists

1053 

Numbe

rs

40000 40000 HSIP 

(Sectio

n 148)

Districtwid

e

0 0 Town or 

Township 

Highway 

Agency

Pedestrian

s

enhancing 

pedestria

n 

amenities

0093-

0197P

L

Non-infrastructure 

Data/traffic records

1 

Numbe

rs

30000

0

30000

0

HSIP 

(Sectio

n 148)

N/A 0 0 Noninfrastruct

ure 

Data

0093-

0198P

L

Non-infrastructure 

Data/traffic records

1 

Numbe

rs

28500

0

28500

0

HSIP 

(Sectio

n 148)

N/A 0 0 Noninfrastruct

ure 

Data

0153-

0118C

N

Roadway Roadway 

widening - curve 

1 

Numbe

rs

12526

74

13918

60

HSIP 

(Sectio

n 148)

Urban 

Principal 

Arterial -

Other

0 0 State 

Highway 

Agency

Roadway 

Departure

improving 

the design 

and 

operation 

of hwy 

intersecti

ons

0172-

0402C

N

Intersection traffic control 

Modify traffic signal -

modernization/replaceme

nt

3 

Numbe

rs

84948

0

84948

0

HSIP 

(Sectio

n 148)

Districtwid

e

0 0 State 

Highway 

Agency

Intersectio

ns

improving 

the design 

and 

operation 

of hwy 

intersecti
2015 Connecticut Highway Safety Improvement Program

18

ons

0017-

0183R

W

Roadway Roadway 

widening - travel lanes

1 

Numbe

rs

18900

0

21000

0

HSIP 

(Sectio

n 148)

Urban 

Minor 

Arterial

0 0 State 

Highway 

Agency

Spot 

safety 

improvem

ent

improving 

the design 

and 

operation 

of hwy 

intersecti

ons

0171-

0356C

N

Intersection traffic control 

Modify traffic signal -

modernization/replaceme

nt

3 

Numbe

rs

33812

0

33812

0

HSIP 

(Sectio

n 148)

Districtwid

e

0 0 State 

Highway 

Agency

Spot 

safety 

improvem

ent

improving 

the design 

and 

operation 

of hwy 

intersecti

ons

0173-

0418C

N

Intersection traffic control 

Modify traffic signal -

modernization/replaceme

nt

8 

Numbe

rs

18591

20

18591

20

HSIP 

(Sectio

n 148)

Districtwid

e

0 0 State 

Highway 

Agency

Spot 

safety 

improvem

ent

improving 

the design 

and 

operation 

of hwy 

intersecti

ons

0170-

3294P

E

Pedestrians and bicyclists 

Miscellaneous pedestrians 

and bicyclists

1106 

Numbe

rs

10000 10000 HSIP 

(Sectio

n 148)

Districtwid

e

0 0 Town or 

Township 

Highway 

Agency

Pedestrian

s

enhancing 

pedestria

n 

amenities
2015 Connecticut Highway Safety Improvement Program

19

0170-

3295P

E

Pedestrians and bicyclists 

Miscellaneous pedestrians 

and bicyclists

1053 

Numbe

rs

10000 10000 HSIP 

(Sectio

n 148)

Districtwid

e

0 0 Town or 

Township 

Highway 

Agency

Pedestrian

s

enhancing 

pedestria

n 

amenities

0174-

0387P

E

Intersection traffic control 

Modify traffic signal timing 

- adjust clearance interval 

(yellow change and/or allred)

395 

Numbe

rs

76050

0

84500

0

HSIP 

(Sectio

n 148)

Districtwid

e

0 0 State 

Highway 

Agency

Spot 

safety 

improvem

ent

improving 

the design 

and 

operation 

of hwy 

intersecti

ons

0170-

3294C

N

Pedestrians and bicyclists 

Miscellaneous pedestrians 

and bicyclists

1053 

Numbe

rs

12657

40

12657

40

HSIP 

(Sectio

n 148)

Districtwid

e

0 0 Town or 

Township 

Highway 

Agency

Pedestrian

s

enhancing 

pedestria

n 

amenities

0171-

0383C

N

Roadway signs and traffic 

control Sign sheeting -

upgrade or replacement

220 

Numbe

rs

27043

00

27043

00

HSIP 

(Sectio

n 148)

Districtwid

e

0 0 State 

Highway 

Agency

Intersectio

ns

systemati

c 

approach 

to reduce 

wrong 

way 

driving

0148-

0202C

N

Intersection geometry 

Auxiliary lanes - add 

auxiliary through lane

1 

Numbe

rs

10357

20

11508

00

HSIP 

(Sectio

n 148)

Urban 

Principal 

Arterial -

Other

1430

0

30 State 

Highway 

Agency

Spot 

safety 

improvem

ent

improving 

the design 

and 

operation 

of hwy 
2015 Connecticut Highway Safety Improvement Program

20

intersecti

ons

0170-

3295C

N

Pedestrians and bicyclists 

Miscellaneous pedestrians 

and bicyclists

1053 

Numbe

rs

12063

40

12063

40

HSIP 

(Sectio

n 148)

Districtwid

e

0 0 Town or 

Township 

Highway 

Agency

Pedestrian

s

enhancing 

pedestria

n 

amenities

0172-

0427C

N

Roadway signs and traffic 

control Sign sheeting -

upgrade or replacement

155 

Numbe

rs

15364

60

15364

60

HSIP 

(Sectio

n 148)

Districtwid

e

0 0 State 

Highway 

Agency

Spot 

safety 

improvem

ent

improving 

the design 

and 

operation 

of hwy 

intersecti

ons

0102-

0346R

W

Intersection geometry 

Auxiliary lanes - add leftturn lane

1 

Numbe

rs

52650

0

58500

0

HSIP 

(Sectio

n 148)

Urban 

Principal 

Arterial -

Other

0 0 State 

Highway 

Agency

Spot 

safety 

improvem

ent

improving 

the design 

and 

operation 

of hwy 

intersecti

ons

0093-

0193P

L

Non-infrastructure 

Data/traffic records

1 

Numbe

rs

12441

61

12441

61

Penalt

y 

Transf

er -

Section 

154

N/A 0 0 Noninfrastruct

ure 

Data
2015 Connecticut Highway Safety Improvement Program

21

0170-

3262P

L

Non-infrastructure 

Data/traffic records

1 

Numbe

rs

30800

0

30800

0

Penalt

y 

Transf

er -

Section 

154

N/A 0 0 Noninfrastruct

ure 

Data

0170-

3270P

L

Non-infrastructure 

Data/traffic records

1 

Numbe

rs

43850

0

43850

0

Penalt

y 

Transf

er -

Section 

154

N/A 0 0 Noninfrastruct

ure 

Data

0170-

3232C

N

Intersection traffic control 

Systemic improvements -

stop-controlled

1462 

Numbe

rs

21022

20

21022

20

HRRR 

Special 

Rule

Rural 

Major 

Collector

0 0 Town or 

Township 

Highway 

Agency

Intersectio

ns

systemati

c appr. to 

impr. 

visibility 

of STOP 

signs on 

local rds

0170-

3233C

N

Intersection traffic control 

Systemic improvements -

stop-controlled

823 

Numbe

rs

10213

60

10213

60

HRRR 

Special 

Rule

Rural 

Major 

Collector

0 0 Town or 

Township 

Highway 

Agency

Intersectio

ns

systemati

c appr. to 

impr. 

visibility 

of STOP 

signs on 

local rds
2015 Connecticut Highway Safety Improvement Program

22

0153-

0118P

E+

Roadway Roadway 

widening - curve 

1 

Numbe

rs

20000

0

18000

0

HSIP 

(Sectio

n 148)

Urban 

Principal 

Arterial -

Other

0 0 State 

Highway 

Agency

Spot 

safety 

improvem

ent

improving 

the design 

and 

operation 

of hwy 

intersecti

ons

0088-

0169C

N+

Intersection traffic control 

Modify traffic signal -

modernization/replaceme

nt

1 

Numbe

rs

13427 12084 HSIP 

(Sectio

n 148)

Urban 

Minor 

Collector

0 0 City of 

Municipal 

Highway 

Agency

Spot 

safety 

improvem

ent

improving 

the design 

and 

operation 

of hwy 

intersecti

ons

0170-

2873P

E+

Non-infrastructure 

Data/traffic records

1 

Numbe

rs

4500 4500 HSIP 

(Sectio

n 148)

N/A 0 0 Noninfrastruct

ure 

Data

0034-

0305P

E+

Intersection traffic control 

Intersection traffic control 

- other

1 

Numbe

rs

30000

0

27000

0

HSIP 

(Sectio

n 148)

Urban 

Minor 

Arterial

0 0 State 

Highway 

Agency

Spot 

safety 

improvem

ent

improving 

the design 

and 

operation 

of hwy 

intersecti

ons

0034-

0345P

Intersection geometry 

Auxiliary lanes - add left1 Numbe

20000

0

18000

0

HSIP 

(Sectio

Urban 

Minor 

0 0 State 

Highway 

Spot 

safety 

improvem

improving 

the design 

and 
2015 Connecticut Highway Safety Improvement Program

23

E+ turn lane rs n 148) Arterial Agency ent operation 

of hwy 

intersecti

ons

0166-

0099C

N+

Intersection traffic control 

Intersection traffic control 

- other

1 

Numbe

rs

20836 18752 HSIP 

(Sectio

n 148)

Urban 

Principal 

Arterial -

Other

0 0 State 

Highway 

Agency

Spot 

safety 

improvem

ent

improving 

the design 

and 

operation 

of hwy 

intersecti

ons

0177-

0352C

N+

Intersection traffic control 

Modify traffic signal -

modernization/replaceme

nt

2 

Numbe

rs

13323 13323 HSIP 

(Sectio

n 148)

Districtwid

e

0 0 State 

Highway 

Agency

Spot 

safety 

improvem

ent

improving 

the design 

and 

operation 

of hwy 

intersecti

ons

0170-

3186P

L+

Non-infrastructure 

Transportation safety 

planning

1 

Numbe

rs

20000

0

18000

0

HSIP 

(Sectio

n 148)

Statewide 0 0 Noninfrastruct

ure 

Data Review 

and 

update 

SHSP

0173-

0403C

N+

Intersection traffic control 

Modify traffic signal -

modernization/replaceme

nt

19 

Numbe

rs

53140

8

53140

8

HSIP 

(Sectio

n 148)

Districtwid

e

0 0 State 

Highway 

Agency

Spot 

safety 

improvem

ent

improving 

the design 

and 

operation 

of hwy 
2015 Connecticut Highway Safety Improvement Program

24

intersecti

ons

0034-

0344P

E+

Intersection traffic control 

Intersection traffic control 

- other

1 

Numbe

rs

5000 4500 HSIP 

(Sectio

n 148)

Urban 

Minor 

Arterial

1600

0

30 City of 

Municipal 

Highway 

Agency

Spot 

safety 

improvem

ent

improving 

the design 

and 

operation 

of hwy 

intersecti

ons

0034-

0338P

E+

Intersection traffic control 

Intersection traffic control 

- other

1 

Numbe

rs

3500 3500 HSIP 

(Sectio

n 148)

Urban 

Minor 

Arterial

1200

0

25 City of 

Municipal 

Highway 

Agency

Spot 

safety 

improvem

ent

improving 

the design 

and 

operation 

of hwy 

intersecti

ons

0037-

0101P

E+

Roadway Roadway 

widening - curve 

1 

Numbe

rs

20000 18000 HSIP 

(Sectio

n 148)

Rural Local 

Road or 

Street

0 25 Town or 

Township 

Highway 

Agency

Roadway 

Departure

keeping 

vehicles in 

the 

roadway

0092-

0640C

N+

Intersection traffic control 

Intersection traffic control 

- other

1 

Numbe

rs

16837

4

16837

4

HSIP 

(Sectio

n 148)

Urban 

Principal 

Arterial -

Other

1810

0

35 State 

Highway 

Agency

Spot 

safety 

improvem

ent

improving 

the design 

and 

operation 

of hwy 

intersecti
2015 Connecticut Highway Safety Improvement Program

25

ons

0170-

3086C

N+

Pedestrians and bicyclists 

Miscellaneous pedestrians 

and bicyclists

1668 

Numbe

rs

14430

5

14430

5

HSIP 

(Sectio

n 148)

Districtwid

e

0 0 State 

Highway 

Agency

Pedestrian

s

enhancing 

pedestria

n 

amenities

0171-

0372P

E+

Pedestrians and bicyclists 

Pedestrian signal - audible 

device

125 

Numbe

rs

10000

00

10000

00

HSIP 

(Sectio

n 148)

Districtwid

e

0 0 State 

Highway 

Agency

Pedestrian

s

enhancing 

pedestria

n 

amenities

0173-

0442P

E+

Roadside Barrier- metal 5 

Numbe

rs

20000

0

20000

0

HSIP 

(Sectio

n 148)

Districtwid

e

0 0 State 

Highway 

Agency

Roadway 

Departure

keeping 

vehicles in 

the 

roadway

0153-

0118C

N+

Intersection geometry 

Intersection geometrics -

miscellaneous/other/unsp

ecified

1 

Numbe

rs

4630 4630 HSIP 

(Sectio

n 148)

Urban 

Principal 

Arterial -

Other

0 0 State 

Highway 

Agency

Spot 

safety 

improvem

ent

improving 

the design 

and 

operation 

of hwy 

intersecti

ons

0017-

0183P

E+

Roadway Roadway 

widening - travel lanes

1 

Numbe

rs

40000

0

36000

0

HSIP 

(Sectio

n 148)

Urban 

Minor 

Arterial

0 0 State 

Highway 

Agency

Spot 

safety 

improvem

ent

improving 

the design 

and 

operation 

of hwy 

intersecti
2015 Connecticut Highway Safety Improvement Program

26

ons

0098-

0103C

N+

Intersection geometry 

Auxiliary lanes - add leftturn lane

1 

Numbe

rs

39810

7

34688

6

HSIP 

(Sectio

n 148)

Urban 

Minor 

Arterial

8900 35 State 

Highway 

Agency

Spot 

safety 

improvem

ent

improving 

the design 

and 

operation 

of hwy 

intersecti

ons

0048-

0189C

N+

Intersection traffic control 

Modify traffic signal -

modernization/replaceme

nt

1 

Numbe

rs

12551.

4

12551 HSIP 

(Sectio

n 148)

Urban 

Major 

Collector

0 0 Town or 

Township 

Highway 

Agency

Spot 

safety 

improvem

ent

improving 

the design 

and 

operation 

of hwy 

intersecti

ons

0173-

0418C

N+

Intersection traffic control 

Modify traffic signal -

modernization/replaceme

nt

8 

Numbe

rs

73988

0

73988

0

HSIP 

(Sectio

n 148)

Districtwid

e

0 0 State 

Highway 

Agency

Spot 

safety 

improvem

ent

improving 

the design 

and 

operation 

of hwy 

intersecti

ons

0034-

0338C

N+

Intersection traffic control 

Intersection traffic control 

- other

1 

Numbe

rs

19566

0

19566

0

HSIP 

(Sectio

n 148)

Urban 

Principal 

Arterial -

Other

0 0 City of 

Municipal 

Highway 

Agency

Spot 

safety 

improvem

ent

improving 

the design 

and 

operation 

of hwy 
2015 Connecticut Highway Safety Improvement Program

27

intersecti

ons
2015 Connecticut Highway Safety Improvement Program

28

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* 2009 2010 2011 2012 2013

Number of fatalities 282.2 290.6 272.6 266.2 261

Number of serious injuries 2352.2 2265.8 2117.4 1990.2 1808.8

Fatality rate (per HMVMT) 0.888 0.916 0.862 0.846 0.834

Serious injury rate (per 

HMVMT)

7.38 7.156 6.706 6.338 5.774

*Performance measure data is presented using a five-year rolling average.
2015 Connecticut Highway Safety Improvement Program

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2015 Connecticut Highway Safety Improvement Program

31

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

Year - 2014

Function 

Classification

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

RURAL PRINCIPAL 

ARTERIAL - INTERSTATE

6 0 0 0

RURAL PRINCIPAL 

ARTERIAL - OTHER 

FREEWAYS AND 

EXPRESSWAYS

15 0 0 0

RURAL PRINCIPAL 

ARTERIAL - OTHER

0 0 0 0

RURAL MINOR 

ARTERIAL

11 0 0 0

RURAL MINOR 

COLLECTOR

1 0 0 0

RURAL MAJOR 

COLLECTOR

16 0 0 0

RURAL LOCAL ROAD OR 

STREET

11 0 0 0

URBAN PRINCIPAL 36 0 0 0
2015 Connecticut Highway Safety Improvement Program

32

ARTERIAL - INTERSTATE

URBAN PRINCIPAL 

ARTERIAL - OTHER 

FREEWAYS AND 

EXPRESSWAYS

25 0 0 0

URBAN PRINCIPAL 

ARTERIAL - OTHER

46 0 0 0

URBAN MINOR 

ARTERIAL

54 0 0 0

URBAN MINOR 

COLLECTOR

7 0 0 0

URBAN MAJOR 

COLLECTOR

0 0 0 0

URBAN LOCAL ROAD 

OR STREET

19 0 0 0

OTHER 0 0 0 0
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37

Year - 2011

Roadway Ownership Number of 

fatalities

Number of serious 

injuries

Fatality rate (per 

HMVMT)

Serious injury rate (per 

HMVMT)

STATE HIGHWAY AGENCY 153 806 0 0

COUNTY HIGHWAY AGENCY 0 0 0 0

TOWN OR TOWNSHIP HIGHWAY AGENCY 56 597 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

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
2015 Connecticut Highway Safety Improvement Program

38
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42

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

See attached report prepared by the Department's Highway Safety Office.

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

2009 2010 2011 2012 2013

Fatality rate (per 

capita)

0.218 0.226 0.206 0.214 0.21

Serious injury rate 

(per capita)

0.862 0.854 0.852 0.838 0.842

Fatality and serious 

injury rate (per capita)

1.56 1.542 1.422 1.342 1.356

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

Calculation and methodology used is consistent with Section 148: Older Drivers and Pedestrians Special 

rule Interim Guidance on 2/13/13 by the FHWA Office of Safety.
2015 Connecticut Highway Safety Improvement Program

43

Does the older driver special rule apply to your state? 

No
2015 Connecticut Highway Safety Improvement Program

44

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: 

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: 

Briefly describe significant program changes that have occurred since the last reporting period. 

None.
2015 Connecticut Highway Safety Improvement Program

45

SHSP Emphasis Areas

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

Year - 2013

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

Roadway Departure All 147 598 0 0 0 0 0

Pedestrians All 31 174 0 0 0 0 0

Bicyclists All 4 65 0 0 0 0 0

Work Zones All 3 9 0 0 0 0 0

Commercial Vehicles All 18 0 0 0 0 0 0
2015 Connecticut Highway Safety Improvement Program

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50

Groups of similar project types

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

Year - 2014

HSIP Subprogram TypesTarget 

Crash Type

Number of 

fatalities

Number of 

serious injuries

Fatality rate (per 

HMVMT)

Serious injury rate 

(per HMVMT)

Other1Other2Other3
2015 Connecticut Highway Safety Improvement Program

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55

Systemic Treatments

Present the overall effectiveness of systemic treatments.

Year - 2013

Systemic 

improvement

Target 

Crash Type

Number of 

fatalities

Number of 

serious injuries

Fatality rate (per 

HMVMT)

Serious injury rate 

(per HMVMT)

Other1Other2Other3

Rumble Strips Run-offroad0 0 0 0 0 0 0
2015 Connecticut Highway Safety Improvement Program

56
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59

ConnDOT's crash file cannot be sorted based on crash type.
2015 Connecticut Highway Safety Improvement Program

60

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

which you would like to elaborate. 

HSIP funding has helped CT see a decreasing trend in most crash types over the last few years, not just 

fatalities and serious injuries. With the help of sustained funding and a renewed focus by an updated 

SHSP, CT expects to meet or exceed its overall safety goal of reducing the number of fatalities and 

serious injuries.
2015 Connecticut Highway Safety Improvement Program

61

Project Evaluation

Provide project evaluation data for completed projects (optional). 

Location Functional 

Class

Improvement 

Category

Improvement 

Type

BefFatalBefSerious 

Injury

Bef-All 

Injuries

BefPDOBefTotalAftFatalAftSerious 

Injury

Aft-All 

Injuries

AftPDOAftTotalEvaluation 

Results 

(Benefit/ 

Cost 

Ratio)

Town of 

Avon--U.S. 

Rte 44 

from 500 

feet east or 

Rte 10 to 

Avon/West 

Hartford 

Town Line

Urban 

Principal 

Arterial -

Other

Roadway Roadway -

other

1 4 10 22 37 0 0 2 6 8 0.50
2015 Connecticut Highway Safety Improvement Program

62

Optional Attachments

Sections Files Attached

Progress in Achieving Safety Performance 

Targets: Overview of General Safety Trends

2015_ct_hsp.pdf

Progress in Achieving Safety Performance Targets: 

Application of Special Rules

revised special rules 65 and older for drivers and 

peds.xlsx
2015 Connecticut Highway Safety Improvement Program

63

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.