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Engineering Professional Development

Effective Roadway Lighting

epd.wisc.edu/RA00194 See upcoming dates

Course Overview

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

Testimonials

"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."

Course Outline

Why Do We Install Roadway Lighting?

  • Safety
  • Security
  • 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
  • Visibility 

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 Selection

  • 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
  • Luminaire
  • 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

Upcoming dates (0)

Take this course when it’s offered next!