Sight Distances for Work Zones

In this course you will learn what Sight Distances are and the types of sight distances most often used in work zones.  You will learn the purposes of these sight distances; how they are determined; the role played by speed, perception, reaction time, and braking distance and maneuver distance; and other factors, such as friction coefficients, sag and crest vertical curves, horizontal curves, and headlight sight distances. You will complete interactive exercises to enhance your understanding of these concepts, including making sight distance calculations.