June 30, 2016

The Road to the

LED Roadway

Lighting

Specification.

Presented to:

VASITE Annual Business Meeting and Technical

Conference

Who Am I …and why am I here

Randy Boice, PEVice President, JMT

Traffic Engineering Lead for VA, NC, SC,

TX and FL

ITS Lead for Entire Corporation

Lighting Experience

• I-95 Corridor

• Primary and secondary corridors

• Park and Ride Lots

• Roundabouts

Overview

LED Lighting Evaluation Championed

and Coordinated by Mansour Mahban

• State Electrical Engineer

• $191,885 Study Funded by VDOT Traffic

Engineering Division

• Leads the Evaluation of LED and Related

Electrical Components Statewide

• Initiatives Include:

▪ Reduce Maintenance costs

▪ Improve Energy Consumption

Who knows lighting terminology?

Audience Participation Time!!!

Glare Illuminance Uniformity

Ratio

Color

Temperature

Uniformity Ratio

• Average/Minimum

Illuminance

• Total light on the surface

Luminance

• Total light reflected from

the surface

Glare

Color Rendering/

Temperature

General Terminology…or Roadway Lighting 101

Why LED

Roadway Lighting?

Why LED

Roadway Lighting?

Not that easy….• Many Providers

• Many Ways to Distribute Light

• Many Color Rendering Mechanisms

• Many Power Sources

• Many <insert descriptor here>

Why Not Just Switch them Out?

Horizontal IlluminanceDifferent Manufacturers = Different Ways to Distribute the Light

Health Concerns

VDOT• Mansour Mahban

• Adam Dixon

• Jon Sayyar

VDOT VTRC• Benjamin Cottrell

VTTI• Ronald Gibbons

JMT• Randy Boice

Roadway Lighting StudyCollaborative effort

Measure Light Source Performance Over Time• Overall Light Output

• Light Loss Factor

• Average Light Output

• Overall Distribution Changes

• Color Changes

• Temperature Issues

• Visual Inspection

• Water Issues

• Animal Intrusion

• Dirt Build Up

Study Approach

Telegraph Road Park and Ride• JMT Designing Parking Lot and Roadway Lighting

Need A Place to LightRelationships pay off…

Luminaires for Testing

25 White LEDs from 5 manufacturers

Test Bed Development

Test Bed

Development

Laboratory Testing

Focus on Illumination and Integrity of LED

Luminaires• Testing and Evaluation every 3 months for 24 months

Overall Testing

Focus on Illumination and Integrity of LED

Luminaires• Testing and Evaluation every 3 months for 24 months

• Measured depreciation of output between fixtures

• Evaluated overall operation over time

• Evaluated maintenance needs over time

Overall Testing

Results

(Driver)

Results

Results

Other Observations

Developing Specifications Based on Testing and Evaluations

VDOT TED developed 2 Special Provisions

Developing Specifications Based on Testing and Evaluations

Includes strength and construction criteria

Developing Specifications Based on Testing and Evaluations

Includes service life and operating temperature

ratings

Developing Specifications Based on Testing and Evaluations

Includes photometric performance criteria

Photometric Controls• 7-Pin Connection (vs old 3-Pin)

• Allows for

• Dimming

• Motion Sensing

• Power Monitoring

• 2-way Communications

Next StepsNew Technologies, New Methods of Maintaining

So What?• Automatic Diagnostics

• Up to 30% More Savings

• Asset Management (GPS/GIS)

• Fixture Troubleshooting

• Power Meter

• Adaptive Control

• Optional Camera

• Optional Motion Detection

• Optional Gunshot Location

Detection

Next StepsNew Technologies, New Methods of Maintaining

Testing in Hampton Roads to Begin July, 2016

VDOT• Mansour Mahban

• Jon Sayyar

Both Instrumental in helping

to get this presentation

together!

Special Acknowledgements

Questions?