Wyoming

Highway Safety Improvement Program

2016 Annual Report

Prepared by: WY
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 .................................................................................................................................................. 1

Program Structure ........................................................................................................................................ 1

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

Program Methodology.............................................................................................................................. 3

Progress in Implementing Projects............................................................................................................. 11

Funds Programmed............................................................................................................................. 11

General Listing of Projects.................................................................................................................. 14

Progress in Achieving Safety Performance Targets .................................................................................... 21

Overview of General Safety Trends........................................................................................................ 21

Application of Special Rules.................................................................................................................... 33

Assessment of the Effectiveness of the Improvements (Program Evaluation) ..........................................35

SHSP Emphasis Areas.............................................................................................................................. 37

Groups of similar project types............................................................................................................... 41

Systemic Treatments............................................................................................................................... 46

Project Evaluation....................................................................................................................................... 53

Glossary....................................................................................................................................................... 55
2016 Wyoming Highway Safety Improvement Program

1

Executive Summary

The Highway Safety Improvement Program (HSIP) for FY 2015 is moving toward better alignment with 

the performance targets of the State of Wyoming through the use of the WYDOT Safety Management 

System (SMS).

The data requirements for the optimal use of the SMS are large and it has been a number of years 

getting to the point we are at now with the ability to describe the issues and problems facing the 

highway system, rural road system and local roads in Wyoming. The HSIP is beginning to take a more 

rounded approach to all of the issues and problems facing the State.

Projects are selected and programmed by the various WYDOT Districts. The Districts are utilizing the 

information produced by the Highway Safety Office to better align projects with the Strategic Highway 

Safety Plan which targets the main safety problem areas for the state highway system. County and local 

road officials work closely with the University of Wyoming Local technical transfer office to identify and 

address safety concerns on roadways under their direction and control.

Overall the HSIP for the State of Wyoming is moving in the right direction in regard to safety problem 

identification and projects to address those issues in a cost effective manner. The Highway Safety Office 

continues to monitor and evaluate the performance of the highway system in Wyoming.

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
2016 Wyoming Highway Safety Improvement Program

2

Program Administration

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

District

If District, how are the HSIP funds allocated?

Other-Judgement based upon data and rating system used to ID specific projects for highway safety 

funding

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

The local county roads are included in the HSIP by the Wyoming rural road safety program (WRRSP) 

administered by the UW LTAP center. The program reviews crash and roadway feature data to develop 

high risk road locations. The work done by the LTAP then includes assistance in putting projects 

together with the local jurisdictions to address the identified roadway safety needs.

There are two MPO's in Wyoming and they are represented on the Safety Mangagement Committee 

that identifies emphasis areas for the SHSP. Projects are proposed and developed by the MPO's with 

regard to their own identified needs and assistance is provided in data and information.

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

Design

Planning

Operations

Governors Highway Safety Office

Briefly describe coordination with internal partners. 

Internal partners are asked to provide their expertise in the various areas that they represent. The 

coordination is required at many levels based upon the policies of WYDOT. Information is developed 

and disemminated by the Highway Safety Office. The information is used to make decisions regarding 

project programming and design by the other WYDOT programs responsible for that part of the project 

development and implementation.

Identify which external partners are involved with Highway Safety Improvement Program planning. 
2016 Wyoming Highway Safety Improvement Program

3

Metropolitan Planning Organizations

Governors Highway Safety Office

Local Government Association

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

the last reporting period.

Other-No program administration practices have changed since the last report

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

would like to elaborate.

The Highway Safety Office has been the lead in developing a Safety Management System (SMS) for 

WYDOT. The SMS is maturing rapidly and becoming the go to place for counter measures and projects 

that have higher benefit/cost ratios. The SMS is based upon the principles contained in the Highway 

Safety Manual and is very dependent upon data. The SMS development has been a long process but it is 

now on the verge of driving the HSIP project selection process for WYDOT.

Program Methodology

Select the programs that are administered under the HSIP. 

Intersection Horizontal Curve Crash Data

Roadway Departure Low-Cost Spot Improvements Sign Replacement And 

Improvement

Local Safety Other-Guardrail 

upgrade/replacement

Program: Intersection

Date of Program Methodology: 10/9/2011

 

What data types were used in the program methodology? 

Crashes Exposure Roadway
2016 Wyoming Highway Safety Improvement Program

4

All crashes

Fatal crashes only

Fatal and serious injury crashes 

only

Traffic

Volume

Functional classification

Other-Rural Intersections and 

the type of traffic control 

present for example signalized or 

not

What project identification methodology was used for this program? 

Crash frequency

Probability of specific crash types

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

Yes

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

No

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

Rural off sytem intersections are studied independently from on system intersections. Urban 

intersections are also studied within the community that they exist. A statewide program does not 

currently exist.

How are highway safety improvement projects advanced for implementation?

Other-Disrtict and Traffic operations input

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

the relative importance of each process in project prioritization. Enter either the weights or numerical 

rankings. If weights are entered, the sum must equal 100. If ranks are entered, indicate ties by giving 

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

Rank of Priority Consideration

Available funding 1

Program: Horizontal Curve

Date of Program Methodology: 10/9/2009

 

What data types were used in the program methodology? 

Crashes Exposure Roadway

All crashes

Fatal crashes only

Traffic

Volume

Horizontal curvature

Fatal and serious injury crashes Functional classification
2016 Wyoming Highway Safety Improvement Program

5

only Roadside features

What project identification methodology was used for this program? 

Crash frequency

Relative severity index

Probability of specific crash types

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

No

How are highway safety improvement projects advanced for implementation?

Other-Disrtict and Traffic operations input

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

the relative importance of each process in project prioritization. Enter either the weights or numerical 

rankings. If weights are entered, the sum must equal 100. If ranks are entered, indicate ties by giving 

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

Rank of Priority Consideration

Ranking based on B/C 2

Available funding 1

Program: Crash Data

Date of Program Methodology: 10/9/2008

 

What data types were used in the program methodology? 

Crashes Exposure Roadway

All crashes

Fatal crashes only

Traffic

Volume

Horizontal curvature

Fatal and serious injury crashes 

only

Other-Safety Index rating system

Functional classification

Roadside features

What project identification methodology was used for this program? 

Crash frequency

Relative severity index

Crash rate

Critical rate

Probability of specific crash types

Excess proportions of specific crash types

Are local roads (non-state owned and operated) included or addressed in this program?
2016 Wyoming Highway Safety Improvement Program

6

Yes

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

No

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

Crash Data is tailored for the specific study that is being conducted for the other roadways whether they 

be rural counties or urban communities. The Wyoming rural road safety program is utilized for HRRR 

projects.

How are highway safety improvement projects advanced for implementation?

Other-Data improvement projects are developed and implemented by the WY traffic records 

coordinating committe

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

the relative importance of each process in project prioritization. Enter either the weights or numerical 

rankings. If weights are entered, the sum must equal 100. If ranks are entered, indicate ties by giving 

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

Rank of Priority Consideration

Available funding 1

Cost Effectiveness 2

Program: Roadway Departure

Date of Program Methodology: 10/9/2006

 

What data types were used in the program methodology? 

Crashes Exposure Roadway

All crashes

Fatal crashes only

Traffic

Volume

Horizontal curvature

Fatal and serious injury crashes 

only

Functional classification

Roadside features

What project identification methodology was used for this program? 

Crash frequency

Relative severity index

Crash rate

Critical rate

Probability of specific crash types

Excess proportions of specific crash types

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

Yes

If yes, are local road projects identified using the same methodology as state roads?
2016 Wyoming Highway Safety Improvement Program

7

No

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

The local roads utilize specific studies to determine project needs.

How are highway safety improvement projects advanced for implementation?

Other-District and Traffic operations input

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

the relative importance of each process in project prioritization. Enter either the weights or numerical 

rankings. If weights are entered, the sum must equal 100. If ranks are entered, indicate ties by giving 

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

Rank of Priority Consideration

Available funding 1

Judgement based - some 

systemic geometric 

improvements and some crashed 

based

2

Program: Low-Cost Spot Improvements

Date of Program Methodology: 10/9/2011

 

What data types were used in the program methodology? 

Crashes Exposure Roadway

All crashes

Fatal crashes only

Traffic

Volume

Horizontal curvature

Fatal and serious injury crashes 

only

Functional classification

Roadside features

What project identification methodology was used for this program? 

Crash frequency

Relative severity index

Crash rate

Critical rate

Probability of specific crash types

Excess proportions of specific crash types

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

No

How are highway safety improvement projects advanced for implementation?

Other-District and Traffic operations input
2016 Wyoming Highway Safety Improvement Program

8

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

the relative importance of each process in project prioritization. Enter either the weights or numerical 

rankings. If weights are entered, the sum must equal 100. If ranks are entered, indicate ties by giving 

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

Rank of Priority Consideration

Ranking based on B/C 1

Available funding 2

Program: Sign Replacement And Improvement

Date of Program Methodology: 10/9/2008

 

What data types were used in the program methodology? 

Crashes Exposure Roadway

All crashes

Fatal crashes only

Fatal and serious injury crashes 

only

Traffic

Volume

Functional classification

Other-Age and condition of signs

What project identification methodology was used for this program? 

Crash frequency

Relative severity index

Crash rate

Critical rate

Probability of specific crash types

Excess proportions of specific crash types

Other-Age of signs in combination with functional classification of the roadway is the main factor 

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

Yes

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

No

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

Sign replacement and improvement projects are done through the WRRSP methodology for Counties. 

For Urban communities these type of projects are done on a corridor basis.

How are highway safety improvement projects advanced for implementation?

Other-District and Traffic operatins input
2016 Wyoming Highway Safety Improvement Program

9

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

the relative importance of each process in project prioritization. Enter either the weights or numerical 

rankings. If weights are entered, the sum must equal 100. If ranks are entered, indicate ties by giving 

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

Rank of Priority Consideration

Available funding 2

Relative age of signage and 

functional classification

1

Program: Local Safety

Date of Program Methodology: 10/9/2008

 

What data types were used in the program methodology? 

Crashes Exposure Roadway

All crashes Traffic

Volume

Other-A simple roadway drive 

through rating is used to identify 

roadway features needing 

improvement

What project identification methodology was used for this program? 

Crash frequency

Probability of specific crash types

Excess proportions of specific crash types

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

Yes

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

No

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

The Wyoming Rural Road Safety Program (WRRSP) utilizes crash data and drive through surveys to rank 

and prioritize local road safety needs and assists in identifying projects to address needs.

How are highway safety improvement projects advanced for implementation?

Competitive application process

selection committee

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

the relative importance of each process in project prioritization. Enter either the weights or numerical 

rankings. If weights are entered, the sum must equal 100. If ranks are entered, indicate ties by giving 

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

Rank of Priority Consideration
2016 Wyoming Highway Safety Improvement Program

10

Available funding 2

Cost Effectiveness 1

Program: Other-Guardrail upgrade/replacement

Date of Program Methodology: 2/2/2015

 

What data types were used in the program methodology? 

Crashes Exposure Roadway

All crashes Volume Roadside features

What project identification methodology was used for this program? 

Expected crash frequency with EB adjustment

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

Yes

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

No

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

Work with the LTAP center using the WRRSP

How are highway safety improvement projects advanced for implementation?

selection committee

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

the relative importance of each process in project prioritization. Enter either the weights or numerical 

rankings. If weights are entered, the sum must equal 100. If ranks are entered, indicate ties by giving 

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

Rank of Priority Consideration

Available funding 1

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

70%

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

improvements?
2016 Wyoming Highway Safety Improvement Program

11

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

Install/Improve Lighting

Add/Upgrade/Modify/Remove Traffic Signal

What process is used to identify potential countermeasures? 

Engineering Study

Other-Use of Crash Information to identify over-represented crash types to be addressed

Other-Safety Management System

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

last reporting period.

Highway Safety Manual

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

would like to elaborate. 

The Highway Safety Methodology has been included in the Safety Management System. The ratings and 

comparisons of safety locations is done with expected crash frequencies. This allows for those locations 

where there has not been a crash in the last five years to be considered in the analysis for where to 

spend safety funding.

Progress in Implementing Projects

Funds Programmed

Reporting period for Highway Safety Improvement Program funding.
2016 Wyoming Highway Safety Improvement Program

12

Federal Fiscal Year

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

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

$540,000.00

How much funding is obligated to local safety projects?

$630,023.00

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

$1,110,044.00

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

$1,110,044.00

Funding Category Programmed* Obligated

HSIP (Section 148) $11,000,000.00 49 % $10,851,649.98 49 %

HRRRP (SAFETEA-LU) $540,000.00 2 % $344,021.51 2 %

Penalty Transfer -

Section 154

$5,300,000.00 24 % $5,287,359.47 24 %

Penalty Transfer –

Section 164

$5,475,000.00 25 % $5,465,345.74 25 %

Totals $22,315,000.00 100% $21,948,376.70 100%
2016 Wyoming Highway Safety Improvement Program

13

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.

There are no impediments to obligating the HSIP funding.

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

progress on which you would like to elaborate.

Wyoming is moving forward with the use of its Safety Management System. The transition from many 

projects being based upon engineering judgment to the utilization of the SMS will benefit the State in 

getting the best projects done first in the years to come.
2016 Wyoming Highway Safety Improvement Program

14

General Listing of Projects

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

Project Improvement 

Category 

Outp

ut 

HSIP 

Cost

Total 

Cost

Fundi

ng 

Categ

ory

Function

al 

Classifica

tion

AA

DT

Spe

ed

Roadw

ay 

Owner

ship

Relationship to SHSP

Emphasis Area Strategy

0300047 -

Gillette/W

YO 50 & 4J 

RD

Intersection 

geometry 

Intersection 

geometrics -

miscellaneous/other

/unspecified

Miles

7239 HSIP 

(Secti

on 

148)

Rural 

Principal 

Arterial -

Other

State 

Highw

ay 

Agenc

y

Local 

Coordination/Int

ersections

Local 

Coordination/Int

ersections

1507037 -

Chief 

Joseph 

Highway

Roadway 

Miles

54294 HSIP 

(Secti

on 

148)

Rural 

Major 

Collector

State 

Highw

ay 

Agenc

y

Roadway 

Departure

B099075 -

UW Tech 

Transfer

Non-infrastructure 

Transportation 

safety planning

Num

bers

27270 HSIP 

(Secti

on 

148)

Statewid

e 

Transpor

tation 

planning 

locals

N/A Local 

Coordination

B142029 -

District 2 

Guardrail

Roadside Barriermetal Miles34279 HSIP 

(Secti

on 

148)

Rural 

Major 

Collector

State 

Highw

ay 

Agenc

y

Roadway 

Departure

Guardrail 

Improvements
2016 Wyoming Highway Safety Improvement Program

15

B151035 -

Dist 1 

Guardrail 

Upgrade

Roadside Barriermetal Miles69662 HSIP 

(Secti

on 

148)

Rural 

Major 

Collector

State 

Highw

ay 

Agenc

y

Roadway 

Departure

Guardrail 

Improvements

B151104 -

District 1 

Thermopl

astic 

Markings

Roadway delineation 

Improve 

retroreflectivity

Miles

247736 HSIP 

(Secti

on 

148)

Urban 

Principal 

Arterial -

Other

State 

Highw

ay 

Agenc

y

Lane Departure

B151109 -

US 85, 

WYO 213, 

WYO 215, 

WYO 216, 

US 30

Miscellaneous 

Miles

19587 HSIP 

(Secti

on 

148)

Rural 

Principal 

Arterial -

Other

State 

Highw

ay 

Agenc

y

Roadway 

Departure

B152105 -

District 2 

Thermopl

astic 

Markings

Roadway delineation 

Improve 

retroreflectivity

Miles

281593 HSIP 

(Secti

on 

148)

Urban 

Principal 

Arterial -

Other

State 

Highw

ay 

Agenc

y

Lane Departure

B153106 -

District 3 

Thermopl

astic 

Markings

Roadway delineation 

Improve 

retroreflectivity

Miles

205065 HSIP 

(Secti

on 

148)

Urban 

Principal 

Arterial -

Other

State 

Highw

ay 

Agenc

y

Lane Departure

B154020 -

District 4 

Guardrail

Roadside Barriermetal Miles1271

378

HSIP 

(Secti

on 

148)

Rural 

Principal 

Arterial -

Other

State 

Highw

ay 

Agenc

y

Roadway 

Departure

Guardrail 

Improvement

B154107 -

District 4 

Roadway delineation 

Improve Miles

174543 HSIP 

(Secti

Urban 

Principal 

State 

Highw

Lane Departure
2016 Wyoming Highway Safety Improvement Program

16

Thermopl

astic 

Markings

retroreflectivity on 

148)

Arterial -

Other

ay 

Agenc

y

B155108 -

District 

wide 

Thermopl

astic 

Markings

Roadway delineation 

Improve 

retroreflectivity

Miles

305295 HSIP 

(Secti

on 

148)

Urban 

Principal 

Arterial -

Other

State 

Highw

ay 

Agenc

y

Lane Departure

B159034 -

Statewide 

Epoxy 

Striping

Roadway delineation 

Longitudinal 

pavement markings -

new

Miles

183947

7

HSIP 

(Secti

on 

148)

Rural 

Major 

Collector

State 

Highw

ay 

Agenc

y

Lane Departure

B159044 -

HRRR/Stat

ewide 

Signs

Roadway signs and 

traffic control 

Roadway signs 

(including post) -

new or updated

Num

bers

258731

.2

HSIP 

(Secti

on 

148)

Rural 

Local 

Road or 

Street

County 

Highw

ay 

Agenc

y

Local 

Coordination

B159045 -

Statewide 

Rumble 

Strips

Roadway Rumble 

strips - edge or 

shoulder

Miles

672320 HSIP 

(Secti

on 

148)

Rural 

Major 

Collector

State 

Highw

ay 

Agenc

y

Roadway 

Departure

Install rumble 

strips

B169021 -

Statewide 

Rumble 

Strips

Roadway Rumble 

strips - center Miles

193248

3

HSIP 

(Secti

on 

148)

Rural 

Major 

Collector

State 

Highw

ay 

Agenc

y

Roadway 

Departure

Install Rumble 

Strips

CN04111 -

Various 

Cnty Rds -

Sweetwat

Roadway signs and 

traffic control 

Roadway signs 

(including post) -

Num

bers

99541.

71

HSIP 

(Secti

on 

148)

Rural 

Local 

Road or 

Street

County 

Highw

ay 

Agenc

Roadway 

Departure
2016 Wyoming Highway Safety Improvement Program

17

er new or updated y

CN22035 -

HRRR/Tet

on Cnty

Roadway signs and 

traffic control 

Roadway signs 

(including post) -

new or updated

Num

bers

77008 HSIP 

(Secti

on 

148)

Rural 

Local 

Road or 

Street

County 

Highw

ay 

Agenc

y

Roadway 

Departure

I803149 -

District 

One Sign 

and Post 

Upgrade

Roadway signs and 

traffic control Sign 

sheeting - upgrade or 

replacement

Num

bers

20079 HSIP 

(Secti

on 

148)

Rural 

Principal 

Arterial -

Interstat

e

State 

Highw

ay 

Agenc

y

Roadway 

Departure

N212116 -

Casper 

South / 

WYO 220

Roadway Roadway -

other Miles

128213

5

HSIP 

(Secti

on 

148)

Rural 

Principal 

Arterial -

Other

State 

Highw

ay 

Agenc

y

Roadway 

Departure

N212117 -

Casper / 

Indian 

Springs

Roadway Roadway -

other Miles

632045 HSIP 

(Secti

on 

148)

Urban 

Principal 

Arterial -

Other

State 

Highw

ay 

Agenc

y

Roadway 

Departure

N341110 -

Casper / 

US20/26 / 

Guardrail

Roadside Barriermetal Miles824943 HSIP 

(Secti

on 

148)

Rural 

Principal 

Arterial -

Other

State 

Highw

ay 

Agenc

y

Roadway 

Departure

Improve 

Guardrail

N341111 -

Casper -

Shoshoni

Roadway Roadway -

other Miles

288650 HSIP 

(Secti

on 

148)

Rural 

Principal 

Arterial -

Other

State 

Highw

ay 

Agenc

y

Roadway 

Departure

P212096 -

Casper 

Miscellaneous 

Miles

287246 HSIP 

(Secti

Urban 

Principal 

State 

Highw

Lane Departure
2016 Wyoming Highway Safety Improvement Program

18

Streets on 

148)

Arterial -

Other

ay 

Agenc

y

CN02103 -

HRRR / 

various 

Cnty Rds -

Laramie 

Cnty

Roadway signs and 

traffic control 

Roadway signs 

(including post) -

new or updated

Num

bers

35563.

71

HRRR

P 

(SAFE

TEALU)

Rural 

Local 

Road or 

Street

County 

Highw

ay 

Agenc

y

Roadway 

Departure

CN15021 -

HRRR / 

Hot 

Springs 

Cnty

Roadside Barriermetal Miles100000 HRRR

P 

(SAFE

TEALU)

Rural 

Local 

Road or 

Street

County 

Highw

ay 

Agenc

y

Roadway 

Departure

HRRR015 -

University 

of 

Wyoming 

FY 2015 T2 

Center

Non-infrastructure 

Transportation 

safety planning

HRRR

P 

(SAFE

TEALU)

'0254147 -

Casper 

Marginal 

North 

Section

Roadway Roadway -

other Miles

200000

0

Penalt

y 

Transf

er -

Sectio

n 154

Rural 

Principal 

Arterial -

Interstat

e

State 

Highw

ay 

Agenc

y

Roadway 

Departure

N212094 -

Casp/Wes

t Belt 

Loop/Sec 

2

Roadway Roadway -

other Miles

189816

0.99

Penalt

y 

Transf

er -

Sectio

n 154

Rural 

Principal 

Arterial -

Other

State 

Highw

ay 

Agenc

y

Roadway 

Departure

PMDT015 Non-infrastructure 155318 Penalt
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- Patrol 

mobile 

Data 

Terminals

Data/traffic records Num

bers

3 y 

Transf

er -

Sectio

n 154

U258012 -

Casp/Wyo 

Blvd/Turn 

Ln/05

Intersection 

geometry Auxiliary 

lanes - add left-turn 

lane

Num

bers

326193

.01

Penalt

y 

Transf

er -

Sectio

n 154

Urban 

Principal 

Arterial -

Other

State 

Highw

ay 

Agenc

y

Intersections

N104087 -

Hoback -

Jackson

Roadside Roadside 

grading Miles

391814

5.86

Penalt

y 

Transf

er –

Sectio

n 164

Rural 

Principal 

Arterial -

Other

State 

Highw

ay 

Agenc

y

Roadway 

Departure

N212094 -

Casper 

Streets

Miscellaneous 

Miles

206183

9.01

Penalt

y 

Transf

er –

Sectio

n 164

Urban 

Principal 

Arterial -

Other

State 

Highw

ay 

Agenc

y

Lane Departure

P541014 -

Rawlins 

Streets / 

Intersectio

n

Intersection traffic 

control Intersection 

traffic control - other

Num

bers

55595.

56

Penalt

y 

Transf

er –

Sectio

n 164

Urban 

Principal 

Arterial -

Other

State 

Highw

ay 

Agenc

y

Intersections

U258012 -

Casp/Wyo 

Blvd/Turn 

Ln/05

Intersection traffic 

control Intersection 

traffic control - other

Num

bers

391789

.95

Penalt

y 

Transf

er –

Sectio

Urban 

Principal 

Arterial -

Other

State 

Highw

ay 

Agenc

y

Intersections
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n 164
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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* 2011 2012 2013 2014 2015

Number of fatalities 135 120 87 150 145

Number of serious injuries 485 458 467 477 460

Fatality rate (per HMVMT) 1.84 1.73 1.3 2.37 1.53

Serious injury rate (per HMVMT) 6.61 6.6 7.38 7.54 4.85

*Performance measure data is presented using a five-year rolling average.
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To the maximum extent possible, present performance measure* data by functional classification and ownership. 

Year - 2015

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

RURAL PRINCIPAL 

ARTERIAL - INTERSTATE

24 104 0.97 4.2

RURAL PRINCIPAL 

ARTERIAL - OTHER

49 115 2.95 6.92

RURAL MINOR 

ARTERIAL

27 81 6 16.8

RURAL MINOR 

COLLECTOR

11 24 25.69 56.06

RURAL MAJOR 

COLLECTOR

25 60 5.06 12.15

RURAL LOCAL ROAD OR 

STREET

10 20 30.66 61.33

URBAN PRINCIPAL 

ARTERIAL - OTHER

3 48 0.46 7.36

URBAN MINOR 

ARTERIAL

4 36 5.06 45.52
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Year - 2013

Roadway Ownership Number of 

fatalities

Number of serious 

injuries

Fatality rate (per 

HMVMT)

Serious injury rate (per 

HMVMT)

STATE HIGHWAY AGENCY 73 331

COUNTY HIGHWAY 

AGENCY

7 58
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Describe any other aspects of the general highway safety trends on which you would like to elaborate.

Fatalities are lower over the past year. Serious injuries are also lower than the previous year. This 

overall trend is good. We have seen in Wyoming the numbers of fatalities and serious injuries go up and 

down over the last five years, but are trending downward overall.

This is a good indication that the projects and activities utilizing HSIP funding are making a positive 

impact. The goal now is to optimize the impact that can be made with the available funding for Highway 

Safety projects.

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

2010 2011 2012 2013 2014

Fatality rate (per capita) 0.076 0.11 0.136 0.156 0.166

Serious injury rate (per 

capita)

0.206 0.292 0.382 0.466 0.43

Fatality and serious injury 

rate (per capita)

0.67 0.68 0.69 0.62 0.6

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

Older Drivers and Pedestrians Special Rule

# People 

65 & 

older Per 

1000

Number 

Driv & 

Ped with 

F+SI

#F+SI/Rate 5 Year 

Average Year

2005 120 86 0.72
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2006 120 68 0.57

2007 120 62 0.52

2008 66 57 0.86

2009 67 46 0.69 0.67 2009

2010 70 50 0.71 0.67 2010

2011 72 43 0.60 0.68 2011

2012 75 44 0.59 0.69 2012

2013 78 41 0.53 0.62 2013

2014 80 45 0.56 0.60 2014

The State of Wyoming's 5-year fatality and serious injuries per capita for drivers and 

pedestrians

who were 65 years of age or older for the periods ending in 2012 and 2014 decreased 

from 0.7

to 0.6. Therefore the Special Rule would not apply to the State of 

Wyoming.

Reports

August 31, 2014 2006 - 2010 2008 - 2012

5 Year 

Average 0.7 0.7

August 31, 2015 2007 - 2011 2009 - 2013

5 Year Average 0.7 0.6

August 31, 2016 2008 - 2012 2010 - 2014

5 Year Average 0.7 0.6
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Does the older driver special rule apply to your state? 

No

Assessment of the Effectiveness of the Improvements (Program 

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

Safety Improvement Program?

Other-Better project selection based upon benefits and costs

Other-Movement towards target setting and performance measures to access the HSIP.

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

Other-Adoption of the SMS to drive project selection decisions

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

The Safety Management System is moving toward utilizing the Highway Safety Manual methodology of 

expected crashes. This allows for the comparison of roadway segments that may have experienced low 

crashes in the past five years but still have deficiencies that need to be addressed.

The benefits and costs of applying a treatment to these segments can be better analyzed for 

consideration.
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SHSP Emphasis Areas

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

Year - 2015

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

Lane Departure Run-offroad94 249 0.99 2.63

Roadway Departure Run-offroad94 249 0.99 2.63

Intersections All 10 54 0.11 0.57

Pedestrians All 5 13 0.05 0.14

Bicyclists 7 0.07

Motorcyclists All 24 105 0.25 1.11
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Groups of similar project types
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Present the overall effectiveness of groups of similar types of projects.

Year - 2015

HSIP Sub-program Types Target 

Crash 

Type

Number of 

fatalities

Number of 

serious injuries

Fatality rate 

(per HMVMT)

Serious injury 

rate (per 

HMVMT)

Other1Other2Other3

Local Safety All 33 106 0.35 1.12

Roadway Departure Run-offroad94 249 0.99 2.63

Horizontal Curve Run-offroad94 249 0.99 2.63

Intersection All 10 54 0.11 0.57

Other-Guardrail 

upgrade/replacement

Run-offroad94 249 0.99 2.63

Sign Replacement And 

Improvement

Run-offroad94 249 0.99 2.63
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Systemic Treatments
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Present the overall effectiveness of systemic treatments.

Year - 2015

Systemic improvement Target Crash 

Type

Number of 

fatalities

Number of 

serious 

injuries

Fatality rate 

(per 

HMVMT)

Serious injury 

rate (per 

HMVMT)

Other1Other2Other3

Add/Upgrade/Modify/Remove 

Traffic Signal

Intersections 10 54 0.11 0.76

Install/Improve Signing Run-off-road 94 249 0.99 2.63

Pavement/Shoulder Widening Run-off-road 94 249 0.99 2.63

Clear Zone Improvements Run-off-road 94 249 0.99 2.63

Upgrade Guard Rails Run-off-road 94 249 0.99 2.63

Install/Improve Pavement Marking 

and/or Delineation

Run-off-road 94 249 0.99 2.63

Rumble Strips Run-off-road 94 249 0.99 2.63
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Describe any other aspects of the overall Highway Safety Improvement Program effectiveness on 

which you would like to elaborate. 

None
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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)

None

Projects are not evaluated by specific project. Data required is too large at this time. Database improvements are being done so that 

evaluations can be done in the future.
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Optional Attachments

Sections Files Attached
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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. 

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

system.

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

roadway features that are correlated with specific severe crash types. 

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

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

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