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Section 9: HSIP Work Codes Table

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Introduction

This section lists and describes HSIP work codes used in the SII calculation described in Section 6. The work codes are grouped into five categories, as shown in the following table.

Anchor: #i1019109Work Code Groups

Code

Item

100

Signing and Signals

200

Roadside Obstacles and Barriers

300

Resurfacing and Roadway Lighting

400

Pavement Markings

500

Roadway Work



Work codes are listed by number within each group.

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Signing and Signals

101

Install Warning/Guide Signs

 

Definition:

Provide advance signing for unusual or unexpected roadway features where no signing existed previously.

 

Reduction Factor (%):

20

 

Service Life (Years):

6

 

Maintenance Cost:

N/A

 

Preventable Crash:

(Vehicle Movements/Manner of Collision = 20–22 or 30) OR (Roadway Related = 2, 3 or 4)



102

Install STOP Signs

 

Definition:

Provide STOP signs where none existed previously.

 

Reduction Factor (%):

20

 

Service Life (Years):

6

 

Maintenance Cost:

N/A

 

Preventable Crash:

Intersection Related = 1 or 2



105

Install Intersection Flashing Beacon

 

Definition:

Provide a flashing beacon at an intersection where a beacon did not exist previously.

 

Reduction Factor (%):

25

 

Service Life (Years):

10

 

Maintenance Cost:

$2,100 (overhead)

$1,300 (roadside mounted)

 

Preventable Crash:

Intersection Related = 1 or 2



106

Modernize Intersection Flashing Beacon

 

Definition:

Improve an existing overhead flashing beacon, located at an intersection, to current design standards. Refer to W.C. 104 for non-intersection flashing beacon.

 

Reduction Factor (%):

10

 

Service Life (Years):

10

 

Maintenance Cost:

N/A

 

Preventable Crash:

Intersection Related = 1 or 2



107

Install Traffic Signal

 

Definition:

Provide a traffic signal where none existed previously.

 

Reduction Factor (%):

28

 

Service Life (Years):

10

 

Maintenance Cost:

$3,400 (Isolated)

$3,900 (Interconnected)

$5,400 (Diamond Interchange)

 

Preventable Crash:

[(Intersection Related = 1 or 2) AND (Vehicle Movements/Manner of Collision = 10–39)] OR (First Harmful Event = 1 or 5)



108

Improve Traffic Signals

 

Definition:

Modernize existing intersection signals to current design standards. Refer to W.C. 106 for modernization of intersection flashing beacons.

 

Reduction Factor (%):

22

 

Service Life (Years):

10

 

Maintenance Cost:

N/A

 

Preventable Crash:

[(Intersection Related =1 or 2) AND (Vehicle Movements/Manner of Collision = 10–39)] OR (First Harmful Event = 1 or 5)



110

Install Pedestrian Signal

 

Definition:

Provide a pedestrian signal at an existing signalized location where no pedestrian phase exists, but pedestrian crosswalks are existing. Refer to W.C. 403 for installation of pedestrian crosswalks.

 

Reduction Factor (%):

15

 

Service Life (Years):

10

 

Maintenance Cost:

N/A

 

Preventable Crash:

First Harmful Event = 1


111

Interconnect Signals

 

Definition:

Provide a communication link between two or more adjacent signals in a corridor. Specify all signalized intersections to be included in the interconnection.

 

Reduction Factor (%):

10

 

Service Life (Years):

10

 

Maintenance Cost:

N/A

 

Preventable Crash:

All


112

Overheight Warning System

 

Definition:

Install electronic devices to detect overheight loads.

 

Reduction Factor (%):

65

 

Service Life (Years):

10

 

Maintenance Cost:

N/A

 

Preventable Crash:

Object Struck = 43


113

Install Delineators

 

Definition:

Install post mounted delineators to provide guidance.

 

Reduction Factor (%):

30

 

Service Life (Years):

2

 

Maintenance Cost:

N/A

 

Preventable Crash:

(Roadway Related = 2 , 3 or 4) AND (Light Condition = 3, 4 or 6)



114

Install School Zones

 

Definition:

Place school zones to include flashers, signing and/or pavement markings where none existed previously. Refer to W.C. 403 for pedestrian crosswalk markings.

 

Reduction Factor (%):

20

 

Service Life (Years):

5

 

Maintenance Cost:

N/A

 

Preventable Crash:

All


118

Replace Flashing Beacon with a Traffic Signal

 

Definition:

Replace an existing flashing beacon at an intersection with a traffic signal.

 

Reduction Factor (%):

25

 

Service Life (Years):

10

 

Maintenance Cost:

$1,300

 

Preventable Crash:

[(Intersection Related = 1 or 2) AND (Vehicle Movements/Manner of Collision = 10–39)] OR (First Harmful Event = 1 or 5)



119

Install Overhead Guide Signs

 

Definition:

Install overhead advance signing for unusual or unexpected roadway features where no signing existed previously.

 

Reduction Factor (%):

20

 

Service Life (Years):

6

 

Maintenance Cost:

N/A

 

Preventable Crash:

Vehicle Movements/Manner of Collision = 20–29



121

Convert 2-way STOP Signs to 4-way STOP Signs

 

Definition:

Provide 4-way STOP signs where 2-way STOP signs existed previously.

 

Reduction Factor (%):

15

 

Service Life (Years):

6

 

Maintenance Cost:

N/A

 

Preventable Crash:

Intersection/Intersection Related = 1 or 2



122

Install Advance Warning Signals (Intersection — Existing Signal, Flashing Beacon or STOP Signs)

 

Definition:

Provide flasher units in advance of an intersection where none previously existed.

 

Reduction Factor (%):

10

 

Service Life (Years):

10

 

Maintenance Cost:

$1,300 per Approach

 

Preventable Crash:

Intersection Related = 1 or 2



123

Install Advance Warning Signals (Curve)

 

Definition:

Provide flasher units in advance of a curve where none previously existed.

 

Reduction Factor (%):

10

 

Service Life (Years):

10

 

Maintenance Cost:

$1,300 per Approach

 

Preventable Crash:

(Roadway Related = 2, 3 or 4) OR (Vehicle Movements/Manner of Collision = 20–24 or 30)



124

Install Advance Warning Signals and Signs (Intersection — Existing Signal, Flashing Beacon or STOP Signs)

 

Definition:

Provide flasher units and signs in advance of an intersection where none previously existed.

 

Reduction Factor (%):

15

 

Service Life (Years):

10

 

Maintenance Cost:

$1,300 per Approach

 

Preventable Crash:

Intersection Related = 1 or 2



125

Install Advance Warning Signals and Signs (Curve)

 

Definition:

Provide flasher units and signs in advance of a curve where none previously existed.

 

Reduction Factor (%):

15

 

Service Life (Years):

10

 

Maintenance Cost:

$1,300 per Approach

 

Preventable Crash:

(Roadway Related = 2, 3 or 4) OR (Vehicle Movements/Manner of Collision = 20–24 or 30)



126

Install Advance Warning Signals and/or Signs (Intersection — Uncontrolled , No Existing Advance Warning)

 

Definition:

Provide flasher units and/or signs in advance of an uncontrolled intersection where none previously existed.

 

Reduction Factor (%):

20

 

Service Life (Years):

10

 

Maintenance Cost:

$1,300 per Approach

 

Preventable Crash:

Intersection Related = 1 or 2



127

Install Advance Warning Signals (Intersection — Existing Warning Signs)

 

Definition:

Provide flasher units in advance of an intersection where none previously existed. Advance warning signs already exist.

 

Reduction Factor (%):

10

 

Service Life (Years):

10

 

Maintenance Cost:

$1,300 per Approach

 

Preventable Crash:

Intersection Related = 1 or 2



128

Install Advance Warning Signs (Intersection — Existing Warning Signals)

 

Definition:

Provide signs in advance of an intersection where none previously existed. Advance warning signals already exist.

 

Reduction Factor (%):

5

 

Service Life (Years):

6

 

Maintenance Cost:

N/A

 

Preventable Crash:

Intersection Related = 1 or 2



129

Install Advance Warning Signals (Curve — Existing Warning Signs)

 

Definition:

Provide flasher units in advance of a curve where none previously existed. Advance warning signs already exist.

 

Reduction Factor (%):

10

 

Service Life (Years):

10

 

Maintenance Cost:

$1,300 per Approach

 

Preventable Crash:

(Roadway Related = 2, 3 or 4) OR (Vehicle Movements/Manner of Collision = 20–24 or 30)



130

Install Advance Warning Signs (Curve — Existing Warning Signals)

 

Definition:

Provide signs in advance of a curve where none previously existed. Advance warning signals already exist.