South Carolina

Highway Safety Improvement Program

2014 Annual Report

Prepared by: SC
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.............................................................................................................................. 8

Progress in Implementing Projects............................................................................................................. 14

Funds Programmed............................................................................................................................. 14

General Listing of Projects.................................................................................................................. 17

Progress in Achieving Safety Performance Targets .................................................................................... 37

Overview of General Safety Trends........................................................................................................ 37

Application of Special Rules.................................................................................................................... 52

Assessment of the Effectiveness of the Improvements (Program Evaluation) ..........................................54

SHSP Emphasis Areas.............................................................................................................................. 55

Groups of similar project types............................................................................................................... 60

Systemic Treatments............................................................................................................................... 65

Glossary....................................................................................................................................................... 76
2014 South Carolina Highway Safety Improvement Program

1

Executive Summary

This report provides an overview of SCDOT's administration of the Highway Safety Improvement 

Program (HSIP). SCDOT's HSIP has a primary focus on state-maintained roads since nearly 96 percent of 

fatal crashes and the vast majority of severe crashes occur on the state system. This report covers 

funding obligations fromOctober 1, 2013 to July 31, 2014.
2014 South Carolina 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.

In South Carolina, the vast majority (~96%) of fatal crashes occur on state-maintained roadways. Due 

this statistic, our primary focus for safety has been on state-maintained roadways. However, we 

have recently planned for some intersection improvement projects where a local road intersects with a 

state-owned road. Additionally, as our crash data is improving in accessibility and completeness, we will 

incorporate local roads into our safety funding if a viable need is observed. 

It is also worth noting that South Carolina maintains the fifth largest highway system in the nation at 

over 41,000 center-line miles of roadway, despite a land area of roughly 30,000 square miles.
2014 South Carolina Highway Safety Improvement Program

3

Furthermore, 19% of all public roads in the nation are state maintained while South Carolina's public 

roads encompass 63% of its total roadway miles.

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

Design

Planning

Maintenance

Operations

Governors Highway Safety Office

Other: 

Briefly describe coordination with internal partners. 

Several partners within SCDOT and consultants are involved thoughout the process of HSIP planning.

Many of our safety improvements are designed by our Safety Project group within Traffic Engineering 

and they are involved with project design or oversight on all projects to ensure proper designs. Our 

Planning office is consulted during the selection process to determine if any qualifying projects have 

been identified for improvements through other funding sources such as the Metropolitan Planning 

Organizations (MPOs) or Council of Governments (COGs). Our Maintenance office is also contacted to 

ensure that there are no conflicting maintenance activities such as resurfacing or pavement marking 

contracts that involve overlapping work. Operations are monitored through other Traffic Engineering 

offices or consultants to ensure that all projects include consideration of proper traffic operations by 

conducting traffic volume counts, Synchro analysis, signal operations, etc. 

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

Metropolitan Planning Organizations

Governors Highway Safety Office

Local Government Association
2014 South Carolina Highway Safety Improvement Program

4

Other: 

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-No changes have been made since the last reporting period

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

would like to elaborate.

Highway Safety Improvement Program Process

Every state is required by the federal government to administer a Highway Safety Improvement Program 

(HSIP). Part 924 of Title 23 of the Code of Federal Regulations (CFR) states, in part:

924.5Policy. “Each state shall develop and implement, on a continuing basis, a highway safety 

improvement program which has the overall objective of reducing the number and severity of accidents 

and decreasing the potential for accidents on all highways.”

924.7 Program Structure. “The highway safety improvement program in each state shall consist of 

components for planning, implementation, and evaluation of safety programs and projects.”

The purpose of the South Carolina HSIP is to establish guidelines for the effective use of available funds, 

to reduce the number and severity of crashes and to decrease the potential for crashes on highways in 

the state. 

The program consists of the following three components: planning, implementation, and evaluation.
2014 South Carolina Highway Safety Improvement Program

5

 

1. PLANNING 

a. Data Management 

In order to locate hazardous locations the following information is essential:

• Crash data – Crash reports are provided by DPS. 

• Traffic data – Traffic volumes are provided by the Traffic Engineering.

• Roadway Data – Road characteristics are provided by the Traffic Engineering.

b. Identify Hazardous Locations

Using the information listed above, potential locations are identified by:

• Recommendations from SCDOT and FHWA personnel.

• Requests from governmental units other than SCDOT and FHWA.

• Requests from citizens. 

• Ongoing research of all fatal crash reports received from DPS.

• Ongoing research of the HSIP database.

The HSIP database has been established to identify, prioritize, and provide guidance for selecting 

potential projects. The information gathered for a location is analyzed using the following methods: 

• Crash Rate – Equates frequency of crashes to traffic volumes (and length of roadway if section). 

A typical crash rate would be expressed in # of crashes per million vehicles entering (if 

intersection) or per one hundred million vehicle miles of travel (if section).

 Severity Rate – A weighted calculation for determining the severity of the crashes. It is based on 

the EPDO (Equivalent Property Damage Only) method from studies performed by the National Safety 

Council and the Traffic Institute at Northwestern University. The severity indices used are listed below: 

(from the Traffic Institute at Northwestern University)

Fatality = 12

Injury = 3

Property Damage Only = 1

• Rate Quality 
2014 South Carolina Highway Safety Improvement Program

6

This method entails the calculation of the crash rate at each location and a statistical test to 

determine if that rate is significantly higher than crash rates for other locations with similar 

characteristics.

The critical rate is compared to the actual crash rate for each location. If the actual crash rate exceeds 

the critical rate, then the location may be considered for improvement. 

• Number-Rate 

Combines crash frequency and crash rate methods by first ranking by the number of crashes.

Establishes a frequency threshold and then re-ranks the locations. Based on a crash rate threshold, 

locations with lower crash rates are eliminated. 

c. Conduct Engineering Studies 

Once a potential project location has been identified, the following steps are taken to determine if 

geometric improvements can be implemented that will reduce the volume and severity of the crashes 

reported at the location. 

• Analyze Project Location

Crash reports are obtained and analyzed for locations selected for detailed review. Results from 

analyses along with engineering judgment are used to determine if further investigation is 

needed along with site review.

• Develop Candidate Countermeasures and Project Proposals

Site reviews are conducted to determine characteristics of locations relative to types of crashes 

occurring. Improvements are recommended to address patterns in crashes.

• Establish Project Priorities 

Estimate costs for recommended improvements at each site along with expected reduction in 

crashes for these improvements. Summarize estimated costs and benefits for improvements 

and determine the most cost effective improvement alternative for a location using the Net 

Benefit Method along with engineering judgment.

The net benefit method compares the estimated annual costs of implementing the selected 

countermeasure to the expected annual benefits. The expected annual benefit is calculated 

using the most current “comprehensive costs” of motor vehicle traffic crashes and the 
2014 South Carolina Highway Safety Improvement Program

7

estimated crash reduction percentage expected as a result of implementing the selected 

countermeasure.

Comprehensive costs are a measure of motor vehicle accident costs that include the effects of 

injury on people's entire lives. This is the most useful measure of accident cost since it includes 

all cost components and places a dollar value on each one. Comprehensive life values are 

estimated by examining risk reduction costs from which the market value of safety is inferred. 

The 11 components of the comprehensive cost are: property damage, lost earnings, lost 

household production, medical costs, emergency services, travel delay, vocational 

rehabilitation, workplace costs, administrative, legal, pain, and lost quality of life. 

 

2. IMPLEMENTATION 

Given that the overall charge of the HSIP program is to reduce the number and severity of crashes, it is 

imperative that the implementation phase be carried out in a timely manner. Once the project has been 

approved for funding, it is necessary to design and schedule the project to implement the 

improvements. All HSIP Projects are managed by one of the following offices:

• Preconstruction 

• Traffic Engineering 

• Consultant

Given the appropriate conditions, a Participation Agreement may be arranged with other governmental 

entities. A participation agreement is a contractual partnership between the SCDOT and one or more 

other governmental entities where funding is combined to complete a project. The agreement includes 

the specifying of the roles, responsibilities, and financial obligations of each participant. 

3. EVALUATION 

 To Determine the Effect of Highway Safety Improvements 

Before and After Studies are conducted on all HSIP projects to evaluate the effectiveness of the overall 

program by observed changes in crash number, rate and severity resulting from program 

implementation. The HSIP office conducts studies three years after final inspection of a project. The 

studies include:

• Photographs of existing conditions at the site prior to improvements.

• After a period of no less than 3 years after the completion of the project, crash data and the 

most recent traffic volumes are collected for the location.
2014 South Carolina Highway Safety Improvement Program

8

• The data collected before implementing safety improvements is then compared with the data 

collected after the improvements have been completed.

• The information described above is used to calculate the resulting crash rate reduction factor for 

the improved site. The total cost of the project along with the reduction factor is used to 

conduct a Benefit Cost Analysis to determine the overall effectiveness of the project.

• Photographs of the improved conditions are recorded along with all Benefit Cost Analysis. This 

information is used to help with the selection of future projects.

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-Safety Program

Program: Other-Safety Program

Date of Program Methodology: 1/1/2014

 

What data types were used in the program methodology? 

Crashes Exposure Roadway

All crashes Traffic Median width
2014 South Carolina Highway Safety Improvement Program

9

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 

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

Yes

No
2014 South Carolina Highway Safety Improvement Program

10

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 3

Available funding 2

Incremental B/C

Ranking based on net benefit 3

Cost Effectiveness 1

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

30

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

improvments?

Cable Median Barriers Rumble Strips
2014 South Carolina Highway Safety Improvement Program

11

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? 

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-Nothing has changed since the last reporting period
2014 South Carolina Highway Safety Improvement Program

12

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

would like to elaborate. 

Projects selected for the HSIP have historically been based on one of the following analysis 

methods:

1. Crash Rate Method

2. Rate Quality Control Method

3. Crash Severity Method

4. Number Rate Method

In addition to these methods, the Highway Safety Manual provides additional statistical 

methods and safety performance functions that are also being incorporated in the selection 

process.

All of the HSIP projects are selected under the guise of the SCDOT Strategic Highway Safety Plan 

(SHSP) where “Safety” is identified as a top priority for the agency. The Plan describes one of 

the goals of SCDOT as “reducing traffic fatalities by twenty-five people per year, and reduce 

traffic crashes by 3 percent each year”.

HSIP projects are developed in collaboration with the following emphasis areas identified in the 

SHSP which are:

Serious Crash Types: Focus on Prevention of Run-off-Road Crashes, Injuries, and 

Fatalities

High Risk Drivers: Focus on Prevention of Aggressive Driving Crashes, Injuries and 

Fatalities
2014 South Carolina Highway Safety Improvement Program

13

Special Vehicles: Focus on Commercial Vehicle Safety/Sharing the Road with Large 

Trucks

Vulnerable Roadway Users: Focus on Improving Safety of Pedestrians, Bicyclists, and 

Motorcyclists
2014 South Carolina Highway Safety Improvement Program

14

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) 46487931 88 % 30566007 83 %

HRRRP (SAFETEA-LU) 1377224 3 % 1377224 4 %

HRRR Special Rule

Penalty Transfer -

Section 154

Penalty Transfer –

Section 164

Incentive Grants - 

Section 163

Incentive Grants 

(Section 406)

Other Federal-aid 

Funds (i.e. STP, NHPP)

1408481 3 % 1408481 4 %

State and Local Funds 3331002 6 % 3331002 9 %
2014 South Carolina Highway Safety Improvement Program

15

Totals 52604638 100% 36682714 100%

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

$0.00

How much funding is obligated to local safety projects?

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

$2,198,098.00

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

$2,198,098.00

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

period?

$0.00
2014 South Carolina Highway Safety Improvement Program

16

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.

The obligations shown in the above chart covers a period from October 1, 2013 - July 31, 2014. SCDOT 

currently has advance construction funds on the books to be obligated in August and September on 

various safety projects to utilize remaining HSIP allocations.

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

progress on which you would like to elaborate.

None.
2014 South Carolina Highway Safety Improvement Program

17

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 

Categ

ory

Functiona

l 

Classificat

ion

AAD

T

Spe

ed

Roadwa

y 

Owners

hip

Relationship to 

SHSP

Emphasis 

Area

Strate

gy

S-86 (Big 

Swamp Rd/ 

Bass Rd) @ S164 (Big 

Swamp Rd) & 

S-729 (Bass 

Rd)

Roadway Superelevation 

/ cross slope

1 

Numb

ers

100000 100000 HSIP Rural 

Major 

Collector

220

0

0 State 

Highwa

y 

Agency

Roadway 

Departure

SC 522 

(Rocky River 

Rd) @ SC 9 

(Pageland 

Hwy)

Intersection geometry 

Auxiliary lanes - add leftturn lane

1 

Numb

ers

247981.

69

247981.

69

HSIP Rural 

Principal 

Arterial -

Other

795

0

0 State 

Highwa

y 

Agency

Intersectio

ns

SC 8 (Pelzer 

Hwy) @ S485 (Three 

and Twenty 

Road/ St. 

Paul Road) 

& East 

Intersection geometry 

Intersection geometry -

other

1 

Numb

ers

2059356

.11

2280800

.21

HSIP Rural 

Minor 

Arterial

570

0

0 State 

Highwa

y 

Agency

Intersectio

ns
2014 South Carolina Highway Safety Improvement Program

18

Church Road

US 321 

(Deerfield 

Rd) @ SC 46 

(Church Rd) 

& S-31 

(Church Rd) 

& S-104 

(Stiney Rd)

Intersection geometry 

Intersection geometrics -

modify skew angle

1 

Numb

ers

4300 4300 HSIP Rural 

Principal 

Arterial -

Other

765

0

0 State 

Highwa

y 

Agency

Intersectio

ns

US 78 (W 

5th N St) @ 

S-22 

(Dawson 

Branch Rd/ 

Orangeburg 

Rd)

Intersection geometry 

Intersection geometry -

other

1 

Numb

ers

1000000 1000000 HSIP Rural 

Principal 

Arterial -

Other

122

05

0 State 

Highwa

y 

Agency

Intersectio

ns

I-20 @ SC 

215

Interchange design 

Extend existing lane on 

ramp

1 

Numb

ers

1762038

.17

1853150

.8

HSIP Urban 

Principal 

Arterial -

Interstate

987

00

0 State 

Highwa

y 

Agency

Interchang

e

US 401 

(Lamar 

Hwy) @ S-19 

(Hoffmeyer 

Rd)

Intersection traffic 

control Modify control -

two-way stop to 

roundabout

1 

Numb

ers

255000 255000 HSIP Rural 

Minor 

Arterial

510

0

0 State 

Highwa

y 

Agency

Intersectio

ns

US 17A 

(North Main 

Intersection traffic 

control Intersection 

1 

Numb

1250000 1250000 HSIP Urban 

Principal 

0 0 State 

Highwa

Intersectio
2014 South Carolina Highway Safety Improvement Program

19

St) @ S-61 

(Myers Rd)

traffic control - other ers Arterial -

Other

y 

Agency

ns

S-40 (Joe 

Frazier 

Road) @ S263 (Morall 

Drive/ Pine 

Grove Road)

Intersection traffic 

control Modify control -

two-way stop to 

roundabout

1 

Numb

ers

7500 7500 HSIP Urban 

Major 

Collector

467

5

0 State 

Highwa

y 

Agency

Intersectio

ns

S-28 (Camp 

Road) @ S95 (Dills 

Bluff Road)

Intersection traffic 

control Intersection 

traffic control - other

1 

Numb

ers

175000 175000 HSIP Urban 

Major 

Collector

143

50

0 State 

Highwa

y 

Agency

Intersectio

ns

S-51 (Rifle 

Range Road) 

@ S-504 

(Hamlin 

Road)

Intersection traffic 

control Intersection 

traffic control - other

1 

Numb

ers

42787.7

7

42787.7

7

HSIP Urban 

Major 

Collector

103

00

0 State 

Highwa

y 

Agency

Intersectio

ns

I-26 [MP 168 

to 198.1]

Roadside Barrier - cable 29.1 

Miles

4109116

.48

4109116

.48

HSIP Rural 

Principal 

Arterial -

Interstate

0 0 State 

Highwa

y 

Agency

Roadway 

Departure

Low Cost 

Improvemen

ts @ Signals 

(Districts 1, 

4, & 7)

Intersection traffic 

control Systemic 

improvements - signalcontrolled

133 

Numb

ers

130.76 130.76 HSIP Varies 

dependin

g on 

route

0 0 State 

Highwa

y 

Agency

Intersectio

ns
2014 South Carolina Highway Safety Improvement Program

20

SC 291 

(Augusta 

Road) @ S-7 

(Old August 

Road) & @ S27 

(Donaldson 

Road) [MP 

0-1.24]

Intersection geometry 

Intersection geometry -

other

1.24 

Miles

678814.

5

678814.

5

HSIP Urban 

Principal 

Arterial -

Other

292

50

0 State 

Highwa

y 

Agency

Intersectio

ns

SC 402 (MP 

12.98 to 

13.59)

Shoulder treatments 

Shoulder treatments -

other

0.61 

Miles

158357.

31

158357.

31

HSIP Rural 

Major 

Collector

220

0

0 State 

Highwa

y 

Agency

Roadway 

Departure

S-60 (Wire 

Road) @ S77 (Two 

Notch Road)

Intersection geometry 

Intersection geometrics -

modify skew angle

1 

Numb

ers

50000 50000 HSIP Rural 

Major 

Collector

420

0

0 State 

Highwa

y 

Agency

Intersectio

ns

SHSP 

MANAGEME

NT 

POSITION 

@SCDPS

Non-infrastructure 

Training and workforce 

development

1 

Numb

ers

35000 35000 HSIP 0 0 Employee 

Compensa

tion

SC 6 (Dreher 

Shoals 

Road) @ S156 (Salem 

Church 

Intersection traffic 

control Intersection 

traffic control - other

1 

Numb

ers

47753.6

7

47753.6

7

HSIP Urban 

Minor 

Arterial

117

75

0 State 

Highwa

y 

Agency

Intersectio

ns
2014 South Carolina Highway Safety Improvement Program

21

Road) & S957 

(Farming 

Creek Road)

I-77 Ramps 

(@ Exits 77 

and 90)

Roadway Pavement 

surface - high friction 

surface

1 

Numb

ers

54233.0

2

54233.0

2

HSIP Rural 

Principal 

Arterial -

Interstate

0 0 State 

Highwa

y 

Agency

Roadway 

Departure

SC 24 @ SC 

187 

(Northern 

Intersection

)

Intersection geometry 

Intersection geometrics -

modify skew angle

1 

Numb

ers

204752.

58

204752.

58

HSIP Rural 

Principal 

Arterial -

Other

132

50

0 State 

Highwa

y 

Agency

Intersectio

ns

S-529 

(Liberty Hall 

Road) @ S1216 (Lindy 

Creek Road)

Intersection traffic 

control Intersection 

traffic control - other

1 

Numb

ers

705824.

46

705824.

46

HSIP Urban 

Principal 

Arterial -

Other

147

25

0 State 

Highwa

y 

Agency

Intersectio

ns

US 52 (S 

Goose Creek 

Boulevard) 

@ S-37 (Red 

Bank Road) 

/ S-588 

(Wisteria 

Road)

Intersection traffic 

control Intersection 

traffic control - other

1 

Numb

ers

915666.

13

915666.

13

HSIP Urban 

Principal 

Arterial -

Other

549

00

0 State 

Highwa

y 

Agency

Intersectio

ns
2014 South Carolina Highway Safety Improvement Program

22

I-26 @ US 

301 (Five 

Chop Road)

Interchange design 

Interchange design -

other

1 

Numb

ers

2831729

.28

2831729

.28

HSIP Rural 

Principal 

Arterial -

Interstate

570

00

0 State 

Highwa

y 

Agency

Improve 

ramp 

alignments

, correct 

cross 

slopes, 

extend 

decel and 

accel 

lanes, and 

apply 

OGFC.

US 21 (Main 

Street/Ande

rson Road) 

@ SC 121 

(Cowan 

Road) & S1544 

(Carmel Rd)

Intersection geometry 

Intersection geometrics -

modify skew angle

1 

Numb

ers

100000 100000 HSIP Urban 

Principal 

Arterial -

Other

302

00

0 State 

Highwa

y 

Agency

Intersectio

ns

SC 120 

(Pinewood 

Road) @ S528 (Kolb 

Road)

Intersection traffic 

control Modify control -

two-way stop to 

roundabout

1 

Numb

ers

218451.

58

218451.

58

HSIP Urban 

Minor 

Arterial

990

0

0 State 

Highwa

y 

Agency

Intersectio

ns

SC 19 

(Edgefield 

Highway) @ 

Intersection geometry 

Auxiliary lanes - add left1 Numb

587735.

9

587735.

9

HSIP Rural 

Principal 

Arterial -

115

90

0 State 

Highwa

y 

Intersectio

ns
2014 South Carolina Highway Safety Improvement Program

23

S-503 (Good 

Springs 

Road)

turn lane ers Other Agency

I-85 NB 

Ramp @ US 

178 (Liberty 

Hwy)

Interchange design 

Interchange design -

other

1 

Numb

ers

50000 50000 HSIP Urban 

Principal 

Arterial -

Interstate

286

75

0 State 

Highwa

y 

Agency

Interchang

e

S-65 

(Meadowfiel

d Road) @ S663 

(Woodtrail 

Drive/ 

Sharpes Hill 

Road) & S1471 

(Woodcrest 

Lane)

Intersection traffic 

control Modify control -

two-way stop to 

roundabout

1 

Numb

ers

65000 65000 HSIP Rural 

Major 

Collector

459

5

0 State 

Highwa

y 

Agency

Intersectio

ns

SC 763 

(Wedgefield 

Road) @ S507 (Pitts 

Road)

Intersection traffic 

control Intersection 

traffic control - other

1 

Numb

ers

764620.

35

764620.

35

HSIP Urban 

Minor 

Arterial

685

0

0 State 

Highwa

y 

Agency

Intersectio

ns

US 321 @ S663 

(Woodtrail 

Drive)

Intersection geometry 

Auxiliary lanes -

miscellaneous/other/uns

pecified

1 

Numb

ers

187503.

03

187503.

03

HSIP Rural 

Principal 

Arterial -

Other

203

50

0 State 

Highwa

y 

Agency

Intersectio

ns
2014 South Carolina Highway Safety Improvement Program

24

S-50 (Fork 

Shoals 

Road) @ S1912 (White 

Horse Road 

Ext)

Intersection geometry 

Intersection geometrics -

modify skew angle

1 

Numb

ers

896467.

82

896467.

82

HSIP Urban 

Major 

Collector

950

0

0 State 

Highwa

y 

Agency

Intersectio

ns

SC 290 

(Locust Hill 

Road) @ S171 (N 

Rutherford 

Road)

Intersection geometry 

Auxiliary lanes - add leftturn lane

1 

Numb

ers

1003665

.65

1003665

.65

HSIP Urban 

Minor 

Arterial

189

00

0 State 

Highwa

y 

Agency

Intersectio

ns

SC 252 @ S203 (Austin 

Road)

Intersection geometry 

Intersection geometrics -

modify skew angle

1 

Numb

ers

1064363

.6

1064363

.6

HSIP Rural 

Major 

Collector

430

0

0 State 

Highwa

y 

Agency

Intersectio

ns

US 178 

(Moorefield 

Mem Hwy) 

@ S-64 (Five 

Forks Road) 

& S-326 (Old 

Pendleton 

Road)

Intersection traffic 

control Modify control -

two-way stop to 

roundabout

1 

Numb

ers

1201445

.27

1201445

.27

HSIP Rural 

Minor 

Arterial

769

5

0 State 

Highwa

y 

Agency

Intersectio

ns

S-87 

(Mormon 

Church 

Road) @ SIntersection traffic 

control Modify control -

two-way stop to 

1 

Numb

ers

35000 35000 HSIP Rural 

Major 

Collector

722

5

0 State 

Highwa

y 

Intersectio

ns
2014 South Carolina Highway Safety Improvement Program

25

488 (Wells 

Highway)

roundabout Agency

S-104 (Chalk 

Bed Road) 

[MP 5 to 5.5]

Shoulder treatments 

Shoulder treatments -

other

0.8 

Miles

1006765

.26

1006765

.26

HSIP Urban 

Major 

Collector

210

0

0 State 

Highwa

y 

Agency

Roadway 

Departure

S-1041 

(Rimer Pond 

Road) MP 

4.75 to 5.50

Alignment Vertical 

alignment or elevation 

change

0.75 

Miles

225850.

87

225850.

87

HSIP Rural 

Major 

Collector

340

0

0 State 

Highwa

y 

Agency

Roadway 

Departure

FY 2012 

Statewide 

Admin 

Hazard 

Elimination 

Program

Non-infrastructure 

Training and workforce 

development

0 813098.

18

813098.

18

HSIP 0 0 Employee 

Compensa

tion

2012 

MIRS/Profil

e Thermo 

(District 1)

Roadway Rumble strips -

edge or shoulder

120.43 

Miles

985231.

52

985231.

52

HSIP Varies 

dependin

g on 

route

0 0 State 

Highwa

y 

Agency

Roadway 

Departure

US 123 Cable 

Guard Rail 

[from S-271 

(Berkeley 

Dr) to SC 8 

(5th St)]

Roadside Barrier - cable 14.92 

Miles

1118124

.06

1118124

.06

HSIP Varies 

along 

route

173

64

0 State 

Highwa

y 

Agency

Roadway 

Departure
2014 South Carolina Highway Safety Improvement Program

26

SC 118 

(University 

Parkway) @ 

S-105 

(Vaucluse 

Road)

Intersection geometry 

Auxiliary lanes -

miscellaneous/other/uns

pecified

1 

Numb

ers

239700 239700 HSIP Urban 

Principal 

Arterial -

Other

940

0

0 State 

Highwa

y 

Agency

Intersectio

ns

SC 38 

(Hamlet 

Hwy) @ S-47 

(Beauty Spot 

Road)

Intersection traffic 

control Modify control -

two-way stop to 

roundabout

1 

Numb

ers

14300 14300 HSIP Rural 

Minor 

Arterial

632

5

0 State 

Highwa

y 

Agency

Intersectio

ns

S-1048 

(Sloan Road) 

@ S-1274 (N 

Brickyard 

Road)

Intersection geometry 

Auxiliary lanes -

miscellaneous/other/uns

pecified

1 

Numb

ers

47200 47200 HSIP Urban 

Major 

Collector

140

50

0 State 

Highwa

y 

Agency

Intersectio

ns

US 21 

(Wilson 

Road) @ S52 (Killian 

Road)

Intersection traffic 

control Intersection 

traffic control - other

1 

Numb

ers

178600 178600 HSIP Rural 

Minor 

Arterial

139

50

0 State 

Highwa

y 

Agency

Intersectio

ns

S-106 

(Mineral 

Springs 

Road) @ S387 (Cromer 

Road) & S1065 (Cedar 

Intersection traffic 

control Modify control -

two-way stop to 

roundabout

1 

Numb

ers

48000 48000 HSIP Urban 

Major 

Collector

945

7

0 State 

Highwa

y 

Agency

Intersectio

ns
2014 South Carolina Highway Safety Improvement Program

27

Road)

S-70 (Two 

Notch Road) 

@ S-77 (Barr 

Road)

Intersection geometry 

Intersection geometrics -

modify skew angle

1 

Numb

ers

54100 54100 HSIP Rural 

Major 

Collector

945

0

0 State 

Highwa

y 

Agency

Intersectio

ns

SC 9 

(Pageland 

Hwy) @ S-36 

(Potter 

Road)

Intersection geometry 

Auxiliary lanes - add leftturn lane

1 

Numb

ers

35000 35000 HSIP Rural 

Principal 

Arterial -

Other

895

0

0 State 

Highwa

y 

Agency

Intersectio

ns

US 176 

(Furman L. 

Fendley 

Hwy) @ S-12 

(Forest 

Street)

Intersection geometry 

Auxiliary lanes - add leftturn lane

1 

Numb

ers

397199.

47

397199.

47

HSIP Rural 

Principal 

Arterial -

Other

105

75

0 State 

Highwa

y 

Agency

Intersectio

ns

2013 

MIRS/Profil

e Thermo 

(District 7)

Roadway Rumble strips -

edge or shoulder

188.51 

Miles

1506369

.98

1506369

.98

HSIP Varies 

dependin

g on 

route

0 0 State 

Highwa

y 

Agency

Roadway 

Departure

2013 

MIRS/Profil

e Thermo 

(District 5)

Roadway Rumble strips -

edge or shoulder

189.47 

Miles

242648.

44

242648.

44

HSIP Varies 

dependin

g on 

route

0 0 State 

Highwa

y 

Agency

Roadway 

Departure

2013 

MIRS/Profil

Roadway Rumble strips - 130.14 1075572 1075572 HSIP Varies 

dependin

0 0 State 

Highwa

Roadway 
2014 South Carolina Highway Safety Improvement Program

28

e Thermo 

(District 6)

edge or shoulder Miles .57 .57 g on 

route

y 

Agency

Departure

US 176 

(Furman L. 

Fendley 

Hwy) @ S407 (New 

Hope Church 

Road)

Intersection geometry 

Intersection geometry -

other

1 

Numb

ers

707228.

4

707228.

4

HSIP Rural 

Minor 

Arterial

836

0

0 State 

Highwa

y 

Agency

Intersectio

ns

SC 340 

(Timmonsvil

le Highway) 

@ S-354 

(Rogers 

Road)

Intersection traffic 

control Intersection 

traffic control - other

1 

Numb

ers

83155.1

6

83155.1

6

HSIP Rural 

Major 

Collector

715

0

0 State 

Highwa

y 

Agency

Intersectio

ns

S-58 

(Jedburg 

Road) [From 

S-769 

(Gallashaw 

Road) to S22 

(Orangeburg 

Road)]

Shoulder treatments 

Shoulder treatments -

other

3.62 

Miles

780713.

37

780713.

37

HSIP Urban 

Minor 

Arterial

548

2

0 State 

Highwa

y 

Agency

Roadway 

Departure

S-674 (Piney 

Grove Rd) @ 

S-1280 

(Piney 

Intersection traffic 

control Modify control -

two-way stop to 

1 

Numb

ers

220000 220000 HSIP Urban 

Minor 

Arterial

730

0

0 State 

Highwa

y 

Intersectio

ns
2014 South Carolina Highway Safety Improvement Program

29

Woods Rd) roundabout Agency

2015 MIRS/ 

Profile 

Thermo 

(District 1)

Roadway Rumble strips -

edge or shoulder

1 

Numb

ers

5000 5000 HSIP Varies 

dependin

g on 

route

0 0 State 

Highwa

y 

Agency

Roadway 

Departure

2015 MIRS/ 

Profile 

Thermo 

(District 2)

Roadway Rumble strips -

edge or shoulder

1 

Numb

ers

5000 5000 HSIP Varies 

dependin

g on 

route

0 0 State 

Highwa

y 

Agency

Roadway 

Departure

2015 MIRS/ 

Profile 

Thermo 

(District 3)

Roadway Rumble strips -

edge or shoulder

1 

Numb

ers

5000 5000 HSIP Varies 

dependin

g on 

route

0 0 State 

Highwa

y 

Agency

Roadway 

Departure

2015 MIRS/ 

Profile 

Thermo 

(District 4)

Roadway Rumble strips -

edge or shoulder

1 

Numb

ers

5000 5000 HSIP Varies 

dependin

g on 

route

0 0 State 

Highwa

y 

Agency

Roadway 

Departure

2015 MIRS/ 

Profile 

Thermo 

(District 5)

Roadway Rumble strips -

edge or shoulder

1 

Numb

ers

5000 5000 HSIP Varies 

dependin

g on 

route

0 0 State 

Highwa

y 

Agency

Roadway 

Departure

2015 MIRS/ 

Profile 

Thermo 

(District 6)

Roadway Rumble strips -

edge or shoulder

1 

Numb

ers

5000 5000 HSIP Varies 

dependin

g on 

0 0 State 

Highwa

y 

Roadway 

Departure
2014 South Carolina Highway Safety Improvement Program

30

route Agency

2015 MIRS/ 

Profile 

Thermo 

(District 7)

Roadway Rumble strips -

edge or shoulder

1 

Numb

ers

5000 5000 HSIP Varies 

dependin

g on 

route

0 0 State 

Highwa

y 

Agency

Roadway 

Departure

US 76 

(Dutch Fork 

Rd) @ S-618 

(Johnson 

Marina Rd)

Intersection geometry 

Auxiliary lanes - add leftturn lane

1 

Numb

ers

150000 150000 HSIP Urban 

Minor 

Arterial

229

50

0 State 

Highwa

y 

Agency

Intersectio

ns

S-34 

(Whitehall 

Rd) & 

Sullivan Rd

Intersection traffic 

control Intersection 

traffic control - other

1 

Numb

ers

250000 250000 HSIP Urban 

Minor 

Arterial

153

0

0 State 

Highwa

y 

Agency

Intersectio

ns

S-63 (Alpine 

Rd) & S1026 (Old 

Percival Rd)

Intersection traffic 

control Modify control -

two-way stop to 

roundabout

1 

Numb

ers

15000 15000 HSIP Urban 

Minor 

Arterial

146

13

0 State 

Highwa

y 

Agency

Intersectio

ns

S-81 (Old 

Whitmire 

Hwy) [MP 

11.7 to MP 

14.8]

Shoulder treatments 

Shoulder treatments -

other

3.1 

Miles

33353.0

3

33353.0

3

HRRP Rural 

Major 

Collector

225 0 State 

Highwa

y 

Agency

Roadway 

Departure

S-24 (Floyds 

Road) [From 

S-13 (N 

Shoulder treatments 

Shoulder treatments -

2.15 

Miles

17168.5

8

17168.5

8

HRRP Rural 

Major 

650 0 State 

Highwa

y 

Roadway 

Departure
2014 South Carolina Highway Safety Improvement Program

31

Center 

Road) to US 

52 (N 

Governor 

Williams 

Hwy)]

other Collector Agency

S-354 

(Rogers Rd) 

[MP 0.00 to 

MP 5.81]

Shoulder treatments 

Shoulder treatments -

other

5.81 

Miles

194736.

3

194736.

3

HRRP Rural 

Major 

Collector

194

0

0 State 

Highwa

y 

Agency

Roadway 

Departure

S-54 (Snake 

Road) MP 

0.00 to MP 

3.05 [From 

SC 462 

(Lowcountry 

Road) to SC 

170 (Okatie 

Hwy)]

Shoulder treatments 

Shoulder treatments -

other

3.05 

Miles

1264968

.18

1264968

.19

HRRP Rural 

Major 

Collector

300

0

0 State 

Highwa

y 

Agency

Roadway 

Departure

S-272 

(Garrison 

Rd/ W. 

Georgia Rd) 

[MP 6.53 to 

MP 10.59]

Shoulder treatments 

Shoulder treatments -

other

4.6 

Miles

190543.

37

190543.

37

HRRP Rural 

Major 

Collector

176

7

0 State 

Highwa

y 

Agency

Roadway 

Departure

S-541 (W. 

Georgia Rd) 

[MP 0.00 to 

Shoulder treatments 

Widen shoulder - paved 

6.48 

Miles

205054.

37

205054.

37

HRRP Rural 

Major 

120

0

0 State 

Highwa

Roadway 

Departure
2014 South Carolina Highway Safety Improvement Program

32

MP 6.48] or other Collector y 

Agency

SC 9 @ Flag 

Patch Road

Intersection geometry 

Intersection geometry -

other

1 

Numb

ers

50000 50000 HSIP Rural 

Principal 

Arterial -

Other

660

0

0 State 

Highwa

y 

Agency

Intersectio

ns

SC 9 @ S-664 

(Liberty 

Church 

Road)

Intersection geometry 

Intersection geometry -

other

1 

Numb

ers

50000 50000 HSIP Rural 

Principal 

Arterial -

Other

632

5

0 State 

Highwa

y 

Agency

Intersectio

ns

US 521 

(Thomas 

Sumter 

Hwy) @ S1342 

(Camden 

Hwy) [South 

Intersection

]

Intersection geometry 

Intersection geometry -

other

1 

Numb

ers

150000 150000 HSIP Rural 

Minor 

Arterial

157

50

0 State 

Highwa

y 

Agency

Intersectio

ns

SC 6 (S. Lake 

Dr) & S-627 

(Bethany 

Church Rd/ 

Pleasant 

View Dr)

Intersection traffic 

control Intersection 

traffic control - other

1 

Numb

ers

250000 250000 HSIP Rural 

Major 

Collector

133

44

0 State 

Highwa

y 

Agency

Intersectio

ns

SC 86 (Hwy 

86) & SIntersection geometry 1 50000 50000 HSIP Rural 748 0 State Intersectio
2014 South Carolina Highway Safety Improvement Program

33

1147 

(Frontage 

Rd)

Intersection geometrics -

modify intersection 

corner radius

Numb

ers

Major 

Collector

2 Highwa

y 

Agency

ns

SC 292 & SC 

290 & S-728 

& S-77 & S62

Intersection geometry 

Intersection geometry -

other

1 

Numb

ers

150000 150000 HSIP Urban 

Major 

Collector

109

13

0 State 

Highwa

y 

Agency

Intersectio

ns

SC 417 (Hwy 

417) @ SC 

296 

(Reidville 

Rd)

Intersection geometry 

Auxiliary lanes - add 

right-turn lane (freeflow)

1 

Numb

ers

150000 150000 HSIP Urban 

Minor 

Arterial

166

10

0 State 

Highwa

y 

Agency

Intersectio

ns

SC 9 @ 

Foster Rd

Intersection traffic 

control Modify control -

two-way stop to 

roundabout

1 

Numb

ers

250000 250000 HSIP Rural 

Major 

Collector

730

0

0 State 

Highwa

y 

Agency

Intersectio

ns

US 601 

(McCords 

Ferry Rd) @ 

SC 263 

(Vanboklen 

Rd)

Intersection traffic 

control Intersection 

traffic control - other

1 

Numb

ers

150000 150000 HSIP Rural 

Principal 

Arterial -

Other

630

0

0 State 

Highwa

y 

Agency

Intersectio

ns

US 17 

Bypass @ 

76th Avenue 

N

Intersection traffic 

control Intersection 

traffic control - other

1 

Numb

ers

150000 150000 HSIP Urban 

Principal 

Arterial -

Other 

301

00

0 State 

Highwa

y 

Agency

Intersectio

ns
2014 South Carolina Highway Safety Improvement Program

34

Freeways 

and 

Expressw

ays

S-51 (Camp 

Creek Rd) 

[MP 0.00 to 

MP 11.70]

Shoulder treatments 

Shoulder treatments -

other

11.7 

Miles

190583.

7

190583.

7

HSIP Rural 

Major 

Collector

781 0 State 

Highwa

y 

Agency

Roadway 

Departure

SC 28 

(Abbeville 

Hwy) [MP 

0.00 to MP 

9.40]

Shoulder treatments 

Shoulder treatments -

other

9.4 

Miles

2448075

.18

2448075

.18

HSIP Rural 

Minor 

Arterial

291

7

0 State 

Highwa

y 

Agency

Roadway 

Departure

US 178 

(Liberty 

Hwy) [MP 

8.40 to MP 

9.03]

Shoulder treatments 

Shoulder treatments -

other

0.63 

Miles

769970.

43

769970.

43

HSIP Rural 

Minor 

Arterial

540

0

0 State 

Highwa

y 

Agency

Roadway 

Departure

S-29 (County 

Farm Rd) 

[MP 3.33 to 

MP 5.18]

Shoulder treatments 

Shoulder treatments -

other

1.85 

Miles

442839.

22

442839.

22

HSIP Rural 

Major 

Collector

290

0

0 State 

Highwa

y 

Agency

Roadway 

Departure

SC 34 

(Ninety Six 

Hwy) [MP 

2.95 to MP 

Shoulder treatments 

Shoulder treatments -

other

1.75 

Miles

954137.

55

954137.

55

HSIP Rural 

Minor 

Arterial

427

2

0 State 

Highwa

y 

Agency

Roadway 

Departure
2014 South Carolina Highway Safety Improvement Program

35

4.7]

S-370 (Cane 

Savannah 

Rd) [MP 0.00 

to MP 1.73]

Shoulder treatments 

Shoulder treatments -

other

1.73 

Miles

958080.

16

958080.

16

HSIP Urban 

Major 

Collector

370

0

0 State 

Highwa

y 

Agency

Roadway 

Departure

US 521 

(Camden 

Hwy) [MP 

25.00 to MP 

25.50]

Shoulder treatments 

Shoulder treatments -

other

0.5 

Miles

66658.5

6

66658.5

6

HSIP Rural 

Principal 

Arterial -

Other

640

0

0 State 

Highwa

y 

Agency

Roadway 

Departure

US 321 

(Fairfield 

Rd) [MP 

12.29 to MP 

19.29]

Shoulder treatments 

Shoulder treatments -

other

7 

Miles

5000 5000 HSIP Rural 

Minor 

Arterial

375

6

0 State 

Highwa

y 

Agency

Roadway 

Departure

S-222 (Old 

Hopkins Rd) 

[MP 3.43 to 

MP 6.68]

Shoulder treatments 

Shoulder treatments -

other

3.25 

Miles

2000 2000 HSIP Rural 

Major 

Collector

477

5

0 State 

Highwa

y 

Agency

Roadway 

Departure

S-37 (Lower 

Richland 

Boulevard) 

[MP 0.00 to 

MP 5.83]

Shoulder treatments 

Shoulder treatments -

other

5.83 

Miles

2000 2000 HSIP Rural 

Major 

Collector

229

6

0 State 

Highwa

y 

Agency

Roadway 

Departure

S-158 

(McIlwain 

Shoulder treatments 

Shoulder treatments -

4.46 1017027 1017027 HRRP Rural 

Major 

550 0 State 

Highwa

Roadway 
2014 South Carolina Highway Safety Improvement Program

36

Rd) [MP 2.24 

to MP 6.70]

other Miles .18 .18 Collector 0 y 

Agency

Departure
2014 South Carolina Highway Safety Improvement Program

37

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 1006 949 906 863 832

Number of serious injuries 3839 3724 3557 3415 3357

Fatality rate (per HMVMT) 2.03 1.92 1.85 1.78 1.72

Serious injury rate (per 

HMVMT)

7.76 7.53 7.27 7.03 6.92

*Performance measure data is presented using a five-year rolling average.
2014 South Carolina Highway Safety Improvement Program

38
2014 South Carolina Highway Safety Improvement Program

39
2014 South Carolina Highway Safety Improvement Program

40

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

70.8 149.4 0.95 2

RURAL PRINCIPAL 

ARTERIAL - OTHER 

FREEWAYS AND 

EXPRESSWAYS

0 0 0 0

RURAL PRINCIPAL 

ARTERIAL - OTHER

147.6 198.4 4.02 5.38

RURAL MINOR 

ARTERIAL

155 299 3.29 6.29

RURAL MINOR 

COLLECTOR

29.8 43.2 10.22 14.93

RURAL MAJOR 

COLLECTOR

250 493 4.75 9.48

RURAL LOCAL ROAD OR 

STREET

19.4 103 0.32 1.69

URBAN PRINCIPAL 19.8 103 0.32 1.69
2014 South Carolina Highway Safety Improvement Program

41

ARTERIAL - INTERSTATE

URBAN PRINCIPAL 

ARTERIAL - OTHER 

FREEWAYS AND 

EXPRESSWAYS

3.2 34.8 0.39 4.22

URBAN PRINCIPAL 

ARTERIAL - OTHER

34 481.8 0.47 6.6

URBAN MINOR 

ARTERIAL

27 350.4 0.48 6.34

URBAN MINOR 

COLLECTOR

0 0 0 0

URBAN MAJOR 

COLLECTOR

12.4 231.2 0.36 6.65

URBAN LOCAL ROAD 

OR STREET

0 130.4 0 6.16

UNKNOWN 27.2 3.6 0 0
2014 South Carolina Highway Safety Improvement Program

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2014 South Carolina Highway Safety Improvement Program

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2014 South Carolina Highway Safety Improvement Program

44
2014 South Carolina Highway Safety Improvement Program

45
2014 South Carolina Highway Safety Improvement Program

46

Year - 2012

Roadway Ownership Number of 

fatalities

Number of serious 

injuries

Fatality rate (per 

HMVMT)

Serious injury rate (per 

HMVMT)

STATE HIGHWAY AGENCY 752.8 3166.6 0 0

COUNTY HIGHWAY AGENCY 43.4 258.8 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

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
2014 South Carolina Highway Safety Improvement Program

47

0 0 0 0 0

OTHER 0 0 0 0
2014 South Carolina Highway Safety Improvement Program

48
2014 South Carolina Highway Safety Improvement Program

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2014 South Carolina Highway Safety Improvement Program

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2014 South Carolina Highway Safety Improvement Program

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2014 South Carolina Highway Safety Improvement Program

52

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

Data for 2013 was not available at the time of submission for the previous two questions, Roadway 

Functional Classification and Roadway Ownership.

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)

0.74 0.69 0.66 0.65 0

Serious injury rate 

(per capita)

1.5 1.47 1.49 1.5 0

Fatality and serious 

injury rate (per capita)

2.24 2.16 2.15 2.15 0

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

The number of fatalities for drivers and pedestrians age 65 and older was obtained from the 

Fatality Analysis Reporting System (FARS). The number of serious injuries for drivers and 

pedestrians age 65 and older was obtained from South Carolina’s data system. The population 

figures were obtained from the MAP-21 Older Drivers and Pedestrians Special Rule Interim 

Guidance table. Population figures are per 1,000 of total population. The rate was obtained by 

taking the number of fatalities (or serious injuries or serious injuries and fatalities) and dividing 

by the population figure. For example, the fatality rate for 2012 was calculated by dividing 97 

by 147 to get 0.66. Data for 2013 is not included in the report. At the time of submittal, SCDOT 

did not have a final fatality count for 2013.
2014 South Carolina Highway Safety Improvement Program

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Does the older driver special rule apply to your state? 

No
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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: 

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. 

SCDOT did not make any significant program changes since the last reporting period.
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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 - 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

Lane Departure 0 0 0 0 0 0 0
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Groups of similar project types

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

Year - 2013

HSIP Subprogram TypesTarget 

Crash Type

Number of 

fatalities

Number of 

serious injuries

Fatality rate (per 

HMVMT)

Serious injury rate 

(per HMVMT)

Other1Other2Other3

Other-Safety 

Program

0 0 0 0 0 0 0
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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 0 0 0 0 0 0 0
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Describe any other aspects of the overall Highway Safety Improvement Program effectiveness on 

which you would like to elaborate. 

SCDOT completed 17 before and after studies on projects funded through the HSIP since the submission 

of last year's report. The average benefit/ cost ratio of these projects is 20.65. The average crash rate 

reduction for the 17 projects was 53.3%.

Please note that several sections under "Program Methodology: Select the programs that are 

administered under the HSIP" were not included in this 2014 report due to the lack of detailed 

definitions and identification methodologies. Also omitted from the report are the secions: "HSIP 

Emphasis Areas" (due to difficulty in capturing this data accurately), "Groups of similar project types" 

(due to difficulty defining based on software categories/ groupings), and "Systemic Treatment" (due to 

limited data on systemic treatments). We will continue to work with FHWA in expanding future reports 

as issues with the on-line reporting tool are clarified and resolved. Data for 2013 was not available for 

sections including Road Functional Class, Roadway Ownership, and Application of Special Rules.
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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)

S-219 (Lane 

Ave) @ S-281 

(Bellview Rd) 

& S-333 

(Concord Ave)

Urban 

Major 

Collector

Intersection 

geometry

Intersection 

geometry -

other

0 0 0 0 0 0 0 0 0 0 3.27

SC 18 

(Shelby 

Hwy) @ SC 

329 (Victory 

Trail Rd)

Rural Minor 

Arterial

Intersection 

traffic control

Intersection 

traffic control -

other

0 0 0 0 0 0 0 0 0 0 22.54

SC 105 [MP 

11.6 to MP 

12.25]

Rural Minor 

Arterial

Alignment Horizontal 

curve 

realignment

0 0 0 0 0 0 0 0 0 0 0.78

US 15 

(Marquis 

Hwy) @ S-24 

(E. Carolina 

Ave)

Urban 

Minor 

Arterial

Intersection 

traffic control

Intersection 

traffic control -

other

0 0 0 0 0 0 0 0 0 0 0.5
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SC 51 

(Pamplico 

Hwy) @ S551 (Willow 

Creek Rd)

Rural Minor 

Arterial

Intersection 

geometry

Auxiliary lanes -

add left-turn 

lane

0 0 0 0 0 0 0 0 0 0 14.91

S-26 (E. 

McIver Rd) 

@ S-358 (E. 

Ashby Rd)

Urban 

Minor 

Arterial

Intersection 

traffic control

Intersection 

traffic control -

other

0 0 0 0 0 0 0 0 0 0 -1.29

SC 146 

(Woodruff 

Rd) @ SC 

296 (S. 

Bennet's 

Bridge Rd) -

East 

Intersection

Urban 

Minor 

Arterial

Intersection 

traffic control

Intersection 

traffic control -

other

0 0 0 0 0 0 0 0 0 0 19.22

US 321 

(Deerfield 

Rd) @ SC 46 

(Church Rd) 

& S-31 

(Church Rd) 

& S-104 

(Stiney Rd)

Rural 

Principal 

Arterial -

Other

Intersection 

geometry

Intersection 

geometrics -

modify skew 

angle

0 0 0 0 0 0 0 0 0 0 13.5

SC 903 (Flat 

Creek Rd) @ 

S-36 (Potter 

Rural Minor 

Arterial

Intersection 

geometry

Auxiliary lanes -

add left-turn 

0 0 0 0 0 0 0 0 0 0 5.44
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Road) lane

I-20 @ SC 6 Urban 

Principal 

Arterial -

Interstate

Interchange 

design

Interchange 

design - other

0 0 0 0 0 0 0 0 0 0 8.81

I-26 @ US 

378 (Sunset 

Blvd)

Urban 

Principal 

Arterial -

Interstate

Interchange 

design

Interchange 

design - other

0 0 0 0 0 0 0 0 0 0 39.26

S-73 (Fish 

Hatchery 

Road) @ S647 (Gator 

Road)

Urban 

Minor 

Arterial

Intersection 

geometry

Intersection 

geometrics -

modify skew 

angle

0 0 0 0 0 0 0 0 0 0 0.07

SC 9 @ SC 

912 

(Williamette 

Rd)

Rural 

Principal 

Arterial -

Other

Intersection 

geometry

Auxiliary lanes -

add right-turn 

lane

0 0 0 0 0 0 0 0 0 0 125.79

US 176 @ I20 Entrance 

Ramp

Urban 

Principal 

Arterial -

Interstate

Intersection 

geometry

Intersection 

geometry -

other

0 0 0 0 0 0 0 0 0 0 23.76

S-55 

(Clarkson 

Rd)

Rural Major 

Collector

Alignment Horizontal 

curve 

realignment

0 0 0 0 0 0 0 0 0 0 68.62
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US 15 @ S251 (Nettles 

Rd) & S-535 

(Nazarene 

Church Rd)

Rural Minor 

Arterial

Alignment Horizontal 

curve 

realignment

0 0 0 0 0 0 0 0 0 0 4.75

SC 9 

(JonesvilleLockhart) @ 

SC 114 (Bob 

Little Rd)

Rural 

Principal 

Arterial -

Other

Intersection 

geometry

Intersection 

geometrics -

modify skew 

angle

0 0 0 0 0 0 0 0 0 0 1.06
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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. 

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.