Presented by

Keenline Innovation Technology & Training Inc

What is reviewed when evaluating a sign? What is retroreflection? Retroreflective standards for sign sheeting Current method for reviewing the

retroreflectivity of signs How Keenline reviews the retroreflectivity

of signs How Keenline can assist Questions?

Keenline Innovation Technology & Training Inc.

Location (intersection and Global Positioning System (GPS) co-ordinates)

Placement (height, setback, angle) Condition of sign (deteriorating, bent, bullet

holes, missing) Condition of support (deteriorating, cracked,

broken, missing) Retroreflectivity ( 4 locations on every reflective

surface, ratio between colours if applicable) Text (lettering meets Ontario Traffic Manual (OTM)

specifications)

Keenline Innovation Technology & Training Inc.

Retroreflection occurs when light is reflected back in the same direction as the source of the light.

For the use of roadway signs imperfect retroreflection or retroreflection in a cone shape is required to allow the driver to see the light coming back from the sign.

Sign sheeting achieves this by the use of glass beads or prismatic material.

Keenline Innovation Technology & Training Inc.

Minimum reflectance values have been set out for sign sheeting in ASTM Designation D 4956-07. Standard Specifications for Retroreflective Sheeting for Traffic Control. These specifications cover new and aged sign sheeting.

the MUTCD in the US adopted new minimum maintained retroreflective levels to be used on all roads open to public travel on January 22, 2008.

Keenline incorporated the MUTCD standards into the review of road signs as a best practise minimum.

Keenline Innovation Technology & Training Inc.

Keenline Innovation Technology & Training Inc.

Sign that failed • Distance 45m• Retroreflection of 7 cd

Sign that passed • Distance 45m• Retroreflection of 120 cd

Keenline Innovation Technology & Training Inc.

Roadvista 922 hand-held retroreflectometer.

Keenline Innovation Technology & Training Inc.

• All information gathered is recorded on a Sign Inspection sheet developed by Keenline that uses the guidelines set out in ASTM Designation E 1709 – 08. Standard Test Method for Measurement of Retroreflective Signs Using a Portable Retroreflectometer at a 0.2 Degree Observation Angle

Date: Location:Red 12.0 White 36.0 3.0

42 °No Pic 79 °

12121212

12.0

36363636

36.0

Defects No

Yes

Height

Comments:DefectsTypeConditionStraight

3

2

Sign Face (min 7 cd)Comments:

Comments:Text /Symbol (min 35 cd)

34

Average

1

Average

Sign Support

TypeCondition HardwareHeight

Comments:Sign Blank

1

RA-1011 120cm x 120cmBarcode 000100 Ratio

General Information

View

Picture

Dist. from Stop Ahead

2

4

Road Class

Customer:

Sign Evaluation Form Form 08-01ST

Speed Limit

General Comments:

Sign Size GPS Co-ordinatesNorthWest

00'00"00'00"

Sheeting Type Diamond Grade

Keenline Innovation Technology & Training Inc.

Customized Inspection Sheets Information gathered can be used to

create a sign inventory and aid in the development of a sign maintenance budget/asset management

Development of a sign inspection program that will meet the proposed revisions to the Minimum Maintenance Standards for Municipal Highways

Random checking of sign stock Review newly assumed subdivisions for

compliant signs

Keenline Innovation Technology & Training Inc.

Keenline Innovation Technology & Training Inc.