100

Signing and Signals

200

Roadside Obstacles and Barriers

300

Resurfacing and Roadway Lighting

400

Pavement Markings

500

Roadway Work

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)

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

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

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

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)

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)

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

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

Definition:

Install electronic devices to detect overheight loads.

Reduction Factor (%):

65

Service Life (Years):

10

Maintenance Cost:

N/A

Preventable Crash:

Object Struck = 43

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)

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

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)

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

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

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

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)

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

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)

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

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

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

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)

Definition:

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

Reduction Factor (%):

5

Service Life (Years):

6

Maintenance Cost:

N/A

Preventable Crash:

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

Definition:

Bring existing pedestrian signal units into conformance with current standards.

Reduction Factor (%):

10

Service Life (Years):

10

Maintenance Cost:

N/A

Preventable Crash:

First Harmful Event = 1

Definition:

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

Reduction Factor (%):

10

Service Life (Years):

10

Maintenance Cost:

$1,300 per Approach

Preventable Crash:

To be determined

Definition:

Improve an existing school zone by upgrading signing, pavement markings or signals.

Reduction Factor (%):

5

Service Life (Years):

5

Maintenance Cost:

N/A

Preventable Crash:

All

Definition:

Construct a metal, concrete, or cable safety system median barrier where none existed previously.

Reduction Factor (%):

65

Service Life (Years):

15

Maintenance Cost:

N/A

Preventable Crash:

(Vehicle Movements/Manner of Collision = 30) OR [(Roadway Related = 4) AND (Object Struck = 1, 3, 20–23, 29–30, 32–33, 36, 39-40, 42, 56-57, 60, 62, or 63)]

Definition:

Remove an existing metal median barrier system and install a concrete or cable safety system median barrier.

Reduction Factor (%):

40

Service Life (Years):

15

Maintenance Cost:

N/A

Preventable Crash:

[(Roadway Related = 4) AND (Object Struck = 23, 39, 56, 62, or 63)] OR (Vehicle Movements/Manner of Collision = 30)

Definition:

Install a roadway divider using barrier curb.

Reduction Factor (%):

40

Service Life (Years):

20

Maintenance Cost:

N/A

Preventable Crash:

(Part of Roadway No. 1 Involved = 1) AND (Vehicle Movements/Manner of Collision = 10, 14, 20–22, 24, 26, 28–30, 34 OR 38)

Definition:

Provide an embankment side slope of 6:1 or flatter.

Reduction Factor (%):

46

Service Life (Years):

20

Maintenance Cost:

N/A

Preventable Crash:

Roadway Related = 3

Definition:

Improve existing substandard bridge rail and approach guardrail to current design standards.

Reduction Factor (%):

15

Service Life (Years):

10

Maintenance Cost:

N/A

Preventable Crash:

(Object Struck = 23, 39–41 or 56) OR (Bridge Detail = 2 or 3)

Definition:

Bring existing substandard guardrail into conformance with current design standards.

Reduction Factor (%):

7

Service Life (Years):

10

Maintenance Cost:

N/A

Preventable Crash:

(Roadway Related = 2, 3 or 4) OR (Object Struck = 20–26, 29–36, 40–42, 56–58, 60, 62, or 63)

Definition:

Install guardrail or concrete traffic barrier where none existed previously. Refer to W.C. 209 if using guardrail to safety treat a fixed object or drainage structures.

Reduction Factor (%):

30

Service Life (Years):

10

Maintenance Cost:

N/A

Preventable Crash:

(Roadway Related = 2, 3 or 4) OR (Object Struck = 20–26, 29–36, 40–42, 56–58, 60, 62, or 63)

Definition:

Remove, relocate or safety treat all fixed objects including the installation of guardrail for safety treatment of a fixed object or drainage structures within the project limits, to include both point and continuous objects.

Reduction Factor (%):

55

Service Life (Years):

20

Maintenance Cost:

N/A

Preventable Crash:

(Roadway Related = 2, 3 or 4) OR (Object Struck = 20–26, 29–36, 40–42, 56–58, 60, 62, or 63)

Definition:

Provide any of a variety of impact attenuators where none existed previously.

Reduction Factor (%):

60

Service Life (Years):

10

Maintenance Cost:

N/A

Preventable Crash:

(Object Struck = 20, 30, 40 or 42)

Definition:

Provide additional width across an existing structure, either by rehabilitation or replacement. Specify existing bridge width, existing approach roadway width and roadway type (2 lane, 4 lane undivided, etc.)

Reduction Factor (%):

55

Service Life (Years):

20

Maintenance Cost:

N/A

Preventable Crash:

(Bridge Detail 8) OR (Vehicle Movements/Manner of Collision = 20, 21, or 30) OR (Roadway Related = 2, 3 or 4)

Definition:

Install curb for an urban low-speed design highway where no previous curb existed and the crash history indicates a control of access problem.

Reduction Factor (%):

10

Service Life (Years):

10

Maintenance Cost:

N/A

Preventable Crash:

[(Intersection Related = 3 or 4) AND (Vehicle Movements/Manner of Collision = 10–19, 20–29, 33–39, 40–44,)] OR (Roadway Related = 2 or 3) OR (Object Struck = 20, 22–23, 26, 29–36) OR (First Harmful Event = 1 or 4)

Definition:

Relocate luminaire supports from median (usually narrow) and place between outside curb and R.O.W.

Reduction Factor (%):

To be defined.

Service Life (Years):

10

Maintenance Cost:

N/A

Preventable Crash:

(Roadway Related = 2 or 4) OR (Object Struck = 20–26, 29–36, 40–42, 56–58, 60, 62, or 63)

Definition:

Improve existing impact attenuators.

Reduction Factor (%):

10

Service Life (Years):

10

Maintenance Cost:

N/A

Preventable Crash:

(Object Struck = 20, 30, 40 or 42)

Definition:

Provide a new roadway surface to increase pavement skid numbers on all the lanes (current skid numbers must be less than 40).

Reduction Factor (%):

42

Service Life (Years):

10

Maintenance Cost:

N/A

Preventable Crash:

Surface Condition = 2 or 4

Definition:

Provide roadway lighting, either partial or continuous, where either none existed previously or major improvements are being made. Refer to W.C. 305 for intersection lighting.

Reduction Factor (%):

40

Service Life (Years):

15

Maintenance Cost:

$100 per Luminaire

Preventable Crash:

Light Condition = 3, 4 or 6

Definition:

Install lighting at an intersection where either none existed previously or major improvements are proposed. Refer to W.C. 304 for general lighting.

Reduction Factor (%):

75

Service Life (Years):

15

Maintenance Cost:

$100 per Luminaire

Preventable Crash:

Light Condition = 3, 4 or 6 AND Intersection Related = 1 or 2

Definition:

Place complete pavement markings, excluding crosswalks, in accordance with the TMUTCD where either no markings or nonstandard markings exist. Refer to W.C. 402 for edge marking, W.C. 403 for pedestrian crosswalks, W.C. 404 for centerline striping.

Reduction Factor (%):

20

Service Life (Years):

2

Maintenance Cost:

N/A

Preventable Crash:

(Roadway Related = 2, 3 or 4) OR (Vehicle Movements/Manner of Collision = 21 or 30) OR (First Harmful Event = 3)

Definition:

Place edge lines where none existed previously.

Reduction Factor (%):

25

Service Life (Years):

2

Maintenance Cost:

N/A

Preventable Crash:

Roadway Related = 2, 3 or 4

Definition:

Place pedestrian crosswalk markings where none existed previously. Refer to W.C. 114 for school zones, and W.C. 110 for pedestrian signal.

Reduction Factor (%):

10

Service Life (Years):

2

Maintenance Cost:

N/A

Preventable Crash:

First Harmful Event = 1

Definition:

Provide centerline striping where either no markings or nonstandard markings existed previously. Refer to W.C. 401 for complete pavement markings.

Reduction Factor (%):

65

Service Life (Years):

2

Maintenance Cost:

N/A

Preventable Crash:

Vehicle Movements/Manner of Collision = 30

Definition:

Install sidewalks where none existed previously.

Reduction Factor (%):

20

Service Life (Years):

10

Maintenance Cost:

N/A

Preventable Crash:

First Harmful Event = 1 or 5

Definition:

Provide modernization to all features within the Right-of-Way to achieve current desirable standards. This includes work such as widening the travelway, widening the shoulders, constructing shoulders, flattening the side slopes, and treating roadside obstacles.

Reduction Factor (%):

15

Service Life (Years):

20

Maintenance Cost:

N/A

Preventable Crash:

All

Definition:

Provide additional width to the lane(s). Refer to W.C. 517 if adding a through lane.

Reduction Factor (%):

30

Service Life (Years):

20

Maintenance Cost:

N/A

Preventable Crash:

(Roadway Related = 2, 3 or 4) OR (Vehicle Movements/Manner of Collision = 13, 21, 23, 30 or 33)

Definition:

Extend the existing paved shoulder to achieve desirable shoulder width. Refer to W.C. 504 or 537 for constructing a paved shoulder.

Reduction Factor (%):

25

Service Life (Years):

20

Maintenance Cost:

N/A

Preventable Crash:

(Roadway Related = 2, 3 or 4) OR (First Harmful Event = 4)

Definition:

Provide paved shoulders of 1- to 4-foot width where no shoulders existed previously. Refer to W.C. 503 or 536 for widening paved shoulders.

Reduction Factor (%):

25

Service Life (Years):

20

Maintenance Cost:

N/A

Preventable Crash:

(Roadway Related = 2, 3 or 4) OR (Vehicle Movements/Manner of Collision = 20, 23–24 or 30) OR (First Harmful Event = 4)

Definition:

Reconstruct the roadway to improve sight distance.

Reduction Factor (%):

50

Service Life (Years):

10

Maintenance Cost:

N/A

Preventable Crash:

(Roadway Related = 2, 3 or 4) OR (Vehicle Movements/Manner of Collision = 20–24, 30, 32 or 34)

Definition:

Flatten existing curves. Refer to W.C. 507 for providing superelevation, and W.C. 508 for intersection realignment.

Reduction Factor (%):

50

Service Life (Years):

10

Maintenance Cost:

N/A

Preventable Crash:

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

Definition:

Provide increased superelevation on an existing curve.

Reduction Factor (%):

65

Service Life (Years):

10

Maintenance Cost:

N/A

Preventable Crash:

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

Definition:

Improve an existing intersection by partial or complete relocation of the roadway(s). Refer to W.C. 509 for channelization, and W.C. 506 for improving horizontal alignments.

Reduction Factor (%):

To be defined.

Service Life (Years):

10

Maintenance Cost:

N/A

Preventable Crash:

Will be determined from supplied diagram

Definition:

Install islands and/or pavement markings to control or prohibit vehicular movements. A sketch of the proposed channelization should be provided. Refer to W.C. 508 for intersection realignment.

Reduction Factor (%):

To be defined.

Service Life (Years):

10

Maintenance Cost:

N/A

Preventable Crash:

Will be determined from supplied diagram

Definition:

Provide turnarounds at an intersection where none existed previously.

Reduction Factor (%):

40

Service Life (Years):

10

Maintenance Cost:

N/A

Preventable Crash:

(Intersection Related = 1 or 2) AND (Vehicle Movements/Manner of Collision = 12, 14, 18, 20, 22, 24, 26, 28, 29, or 34)

Definition

Construct acceleration and/or deceleration lanes where none existed previously.

Reduction Factor (%):

10

Service Life (Years):

10

Maintenance Cost:

N/A

Preventable Crash:

(Vehicle Movements/Manner of Collision = 20 or 21) OR [(Intersection Related = 1 or 2) AND (Vehicle Movements/Manner of Collision = 13 or 23)]

Definition:

Construct vertical separation of intersecting roadways.

Reduction Factor (%):

80

Service Life (Years):

30

Maintenance Cost:

N/A

Preventable Crash:

Intersection Related = 1 or 2

Definition:

Construct vertical separation of intersecting roadways to include interconnecting ramps.

Reduction Factor (%):

65

Service Life (Years):

30

Maintenance Cost:

N/A

Preventable Crash:

Intersection Related = 1 or 2

Definition:

Permanently close an existing crossover.

Reduction Factor (%):

95

Service Life (Years):

20

Maintenance Cost:

N/A

Preventable Crash:

(Part of Roadway Involved = 1) AND (Vehicle Movements/Manner of Collision = 10, 14, 20–22, 24, 26, 28–30, 34 or 38)

Definition:

Provide an additional travel lane.

Reduction Factor (%):

28

Service Life (Years):

20

Maintenance Cost:

N/A

Preventable Crash:

Vehicle Movements/Manner of Collision = 20–24, 26–27, 29–30

Definition:

Provide a continuous two-way left turn lane where none existed previously.

Reduction Factor (%):

45

Service Life (Years):

10

Maintenance Cost:

N/A

Preventable Crash:

Vehicle Movements/Manner of Collision = 20–22, 24, 26, 28–30, 34 or 38

Definition:

Provide an exclusive left turn lane where none existed previously. The affected intersection approaches must be specified.

Reduction Factor (%):

25

Service Life (Years):

10

Maintenance Cost:

N/A

Preventable Crash:

Vehicle Movements/Manner of Collision = 20–22, 24, 26, 28–30, 34 or 38 AND Intersection Related 4

Definition:

Provide additional length to an existing exclusive left turn lane. Affected intersection approaches must be specified.

Reduction Factor (%):

40

Service Life (Years):

10

Maintenance Cost:

N/A

Preventable Crash:

Vehicle Movements/Manner of Collision = 20–22 AND Intersection Related 4

Definition:

Provide an exclusive right turn lane where none existed previously. Affected intersection approaches must be specified.

Reduction Factor (%):

25

Service Life (Years):

10

Maintenance Cost:

N/A

Preventable Crash:

Vehicle Movements/Manner of Collision = 20–23, 25–27, 33 or 36 AND Intersection Related 4

Definition:

Provide additional length to an existing exclusive right turn lane. Affected intersection approaches must be specified.

Reduction Factor (%):

40

Service Life (Years):

10

Maintenance Cost:

N/A

Preventable Crash:

Vehicle Movements/Manner of Collision = 20–22 AND Intersection Related 4

Definition:

Construct a pedestrian crossover where none existed previously.

Reduction Factor (%):

95

Service Life (Years):

20

Maintenance Cost:

N/A

Preventable Crash:

First Harmful Event = 1

Definition:

Provide an increased turning radius at an existing intersection.

Reduction Factor (%):

10

Service Life (Years):

10

Maintenance Cost:

N/A

Preventable Crash:

[(Vehicle Type = 2–3, 5–8, or 24) AND (First Harmful Event = 7)] OR (Vehicle Movements/Manner of Collision = 13, 20–21, 30 or 33)

Definition:

Convert two-way frontage roads to one-way operation.

Reduction Factor (%):

25

Service Life (Years):

10

Maintenance Cost:

N/A

Preventable Crash:

Part of Roadway Involved = 2

Definition:

Increase vertical clearance of a roadway underneath an overhead obstacle by lowering the roadway grade.

Reduction Factor (%):

50

Service Life (Years):

10

Maintenance Cost:

N/A

Preventable Crash:

Object Struck = 43

Definition:

Remove an overhead structure in order to increase vertical clearance.

Reduction Factor (%):

95

Service Life (Years):

10

Maintenance Cost:

N/A

Preventable Crash:

Object Struck = 43

Definition:

Provide crossovers in the median where none previously existed.

Reduction Factor (%):

20

Service Life (Years):

10

Maintenance Cost:

N/A

Preventable Crash:

(Part of Roadway Involved = 1) AND (Vehicle Movements/Manner of Collision = 10, 14, 20–22, 24, 26, 28, 29, 34 or 38)

Definition:

Permanently remove raised median/concrete island.

Reduction Factor (%):

35

Service Life (Years):

10

Maintenance Cost:

N/A

Preventable Crash:

Object Struck = 21 or 36

Definition:

Install milled-in or rolled-in rumble strips along the shoulder.

Reduction Factor (%):

25

Service Life (Years):

10

Maintenance Cost:

N/A

Preventable Crash:

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

Definition:

Install high-profile pavement markers along the shoulder.

Reduction Factor (%):

15

Service Life (Years):

5

Maintenance Cost:

N/A

Preventable Crash:

(Roadway Related = 2, 3 or 4) OR (Vehicle Movements/Manner of Collision = 30) OR (Surface Condition = 2 or 4)

Definition:

Widen an existing opening in the median to accommodate vehicles for storage.

Reduction Factor (%):

20

Service Life (Years):

10

Maintenance Cost:

N/A

Preventable Crash:

Vehicle Movements/Manner of Collision = 10, 14, 20 or 21

Definition:

Extend the existing paved shoulder to greater than 5 ft. Refer to W.C. 504 or 537 for constructing a paved shoulder.

Reduction Factor (%):

40

Service Life (Years):

20

Maintenance Cost:

N/A

Preventable Crash:

(Roadway Related = 2, 3 or 4) OR (First Harmful Event = 4)

Definition:

Provide paved shoulders 5 feet or greater where no shoulders existed previously. Refer to W.C. 503 or 536 for widening paved shoulders.

Reduction Factor (%):

40

Service Life (Years):

20

Maintenance Cost:

N/A

Preventable Crash:

(Roadway Related = 2, 3 or 4) OR (Vehicle Movements/Manner of Collision = 20, 23–24 or 30) OR (First Harmful Event = 4)

Definition:

Convert an existing 2-lane facility to a 4-lane divided facility.

Reduction Factor (%):

45

Service Life (Years):

20

Maintenance Cost:

N/A

Preventable Crash:

(Roadway Related = 2, 3 or 4) OR (Vehicle Movements/Manner of Collision = 10, 13, 14, 20, 21, 22, 24 or 30)

Definition:

Install a grass median on an undivided facility.

Reduction Factor (%):

40

Service Life (Years):

20

Maintenance Cost:

N/A

Preventable Crash:

Vehicle Movements/Manner of Collision = 20–24 or 30

Definition:

Install passing lanes on a 2-lane road.

Reduction Factor (%):

25

Service Life (Years):

10

Maintenance Cost:

N/A

Preventable Crash:

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

Definition:

Install milled-in rumble strips along the centerline.

Reduction Factor (%):

35

Service Life (Years):

10

Maintenance Cost:

N/A

Preventable Crash:

(Vehicle Movements/Manner of Collision = 21 or 30) OR (Roadway Related = 2 or 3)

Definition:

Install transverse rumble strips at the approach to a RURAL intersection with existing traffic control devices.

Reduction Factor (%):

35

Service Life (Years):

2

Maintenance Cost:

N/A

Preventable Crash:

Intersection Related = 1 or 2