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Signal Timing Design: Introduction

There are innumerable locations around the country where roads intersect. Conflicting traffic movements cannot share the same space at the same time. Because of their ability to separate traffic movements in time, traffic signals are one of the most common regulatory fixtures found at intersections.

Since traffic signals are so common, professional engineers are often expected to know the basics of Signal Timing Design. Signal Timing Design, at its simplest level, involves finding the appropriate duration for all of the various signal indications. The design process involves assembling the results of several independent calculations. 

This chapter introduces the fundamentals of Signal Timing Design by discussing each step of the process in detail. To begin exploring Signal Timing Design, click on one of the links to the left.