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Introduction to Traffic Signal Phasing

COURSE NO: C02-071
Introduction to Traffic Signal Phasing
Course Highlights

This online engineering PDH course will establish, through slides and discussions, the concepts and principals used in establishing or interpreting traffic signal phase sequences.


The material covered in this online PDH course is intended to provide a practical overview of traffic signal phasing and its proper application.  Since fully actuated controller operation demonstrates the most sophisticated features and capabilities with respect to signal phasing, the explanation of phasing concepts centers on this mode of controller operation.


This 2 PDH online course is intended for civil and electrical engineers and technicians who are interested in learning more about modern traffic signal operation.
Learning Objectives

This PE continuing education course is intended to provide you with the following specific knowledge and skills:

  • Understanding of Phase Service and Phase Rotation
  • Recognition of How Recalls Operate
  • Knowledge of NEMA Phase Sequences and Numbering
  • Gain Familiarity with Overlap Use
  • Understanding of Manual Control
Course Document
In this professional engineering CEU course, you need to review the course document titled, "Introduction to Traffic Signal Phasing" by Jeffrey Buckholz.
To view, print and study the course document, please click on the following link(s):
Introduction to Traffic Signal Phasing (1.3 MB)
Course Quiz
Once you complete your course review, you need to take a multiple-choice quiz consisting of fifteen (15) questions to earn 2 PDH credits. The quiz will be based on the entire document.
The minimum passing score is 70%. There is no time limit on the quiz, and you can take it multiple times until you pass at no additional cost.
Certificate of Completion

Upon successful completion of the quiz, print your Certificate of Completion instantly. (Note: if you are paying by check or money order, you will be able to print it after we receive your payment.) For your convenience, we will also email it to you. Please note that you can log in to your account at any time to access and print your Certificate of Completion.

To buy the course and take the quiz, please click on: