Effective Roadway Lighting
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The new Illuminating Engineering Society of North America (IES) RP-8-14 Recommended Practice for Roadway Lighting has changed to the Luminance design method as the primary design method. The new RP-8. also has new guidance related to LED lighting, Adaptive Lighting and Lighting for Pedestrians. Learn the basics of lighting design, design methods and guidelines with this course.
Who Should Attend?
- Engineering consultants
- State DOT engineers
- Municipal engineers
- Public works directors and superintendents
- Lighting designers, architects
- Electric utility engineers
- Lighting manufacturers and suppliers
- Others involved in design, operation, and maintenance of roadway lighting
Why Do We Install Roadway Lighting?
- Cost/benefit considerations
- When should we light? – Warrants
Designing “In Scale”
- Lighting is a geometry problem
- Rules of Thumb for Selecting Mounting Height of Lighting
- Design “in scale” with the street
Review of Lighting Fundamentals
- Roadway lighting units of measure
- Photometric reports
- Reflection and refraction
Light Sources for Roadway Lighting
- High Intensity Discharge lamps
- LED lighting
- Induction Lighting
- Color Rendering Index (CRI)
- Correlated Color Temperature (CCT)
- Scotopic/Photopic ratio (S/P)
- Luminaire types
- Reflectors and refractors
- Roadway distribution types
- Cutoff classifications
- Backlight, Uplight, and Glare (BUG) ratings
- Ingress Protection (IP) ratings
- Maintenance considerations
Evaluating Street Lighting for Energy Efficiency
- Energy Analysis Approaches
- Comparing LED & HID Lighting Systems
- Retrofitting Existing Systems
- Examples and Exercises
Introduction to the New ANSI/IES Rp-08-14 Recommended Practice for Roadway Lighting
- Roadway classifications
- Design criteria
- Design considerations
- Lighting for pedestrian activity
- Limiting light trespass & skyglow
Example Design Problems
- Illuminance design
- Luminance design
- Comparison of results
Lighting Design Exercises
- Designing with computer software
- Considering energy efficiency, connected load and life cycle cost in design
- Retrofit Design Exercise
- Complex geometries, intersections and other special cases
Translating Design to Practice: How the Real World Gets in the Way
- Applying theoretical spacing to plan
- Intersection adjustments
- Utility considerations
- Trees and landscape coordination
- Specification and construction issues
Lighting Design Plan Sheet Exercise
Roadway Lighting - Electrical Basics
- Basic lighting circuits
- Electrical plans, details, and panel schedules
- Voltage drop calculations
Adaptive Lighting and Lighting Controls
Poles. Foundations and Safety
- Pole materials
- Typical foundation design
- Alternative foundation types
- Direct burial poles
- Clear zone considerations
- Breakaway assemblies
"Great course–covered almost every aspect of roadway lighting."
"Good examples, real-world issues."
"I got the answers to several plaguing problems."
"A completely useful course. I am happy to report to my company that our training time and money were so effectively used."
"This course was great. I would highly recommend it to anyone regardless of their street lighting experience."
Ben Jordan is a program director with Interdisciplinary Professional Programs in the transportation sector. He has over 35 years of experience in civil engineering and public works. He earned a Bachelor of Science Degree in Civil Engineering from the University of Illinois at Urbana–Champaign and is a Licensed Professional Engineer in the State of Illinois.
Suzanne Lansford, PE, President and Principal, REDD Inc., Phoenix, Arizona
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