Signal Controller Basics

The 2010 HCM places more emphasis on traffic signal controllers than previous versions of the HCM. The focus of this course will be understanding the basic concepts of both NEMA and 170 controllers. A review of the most common traffic signal controller variables and concepts, will be covered. Printouts from actual controllers will be used extensively within the course.

Learning Objectives

1. Recall differences between NEMA & 170 controllers.
2. Recognize various features of the modern controller.
3. List the key controller variables required when using the HCM 2010.

Suggested Prerequisites

Signal Timing Basics or Introduction to Traffic Signal Design

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