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Roadway Geometric Design Part III - Intersections & Interchanges (3 credit hours)

This 3 hour course focuses on the geometric design process for modern roads and highways. Subjects covered include: intersections (types/examples, alignment, profile, sight distance, roundabouts); grade separations and interchanges (types, warrants, safety, economic factors). The contents of this course are intended to serve as guidance and not as an absolute standard or rule.


The course objective is to give engineers and designers an in-depth look at the principles to be considered when selecting and designing roadways. Upon course completion, you should be familiar with the general guidelines for roadway geometric design.

A Policy on Geometric Design of Highways and Streets (also known as the “Green Book”) published by the American Association of State Highway and Transportation Officials (AASHTO) is considered to be the primary guidance for U.S. roadway design. For this course, Chapters 9 and 10 – Intersections, Grade Separations and Interchanges will be used exclusively for fundamental roadway geometric design principles.

Gregory Taylor

This course is intended to provide you with the following specific knowledge and subjects:


Types and examples of intersections

Alignment and profile guidelines

Intersection Sight Distance

Turning roadways and channelization

Auxiliary lane usage

Median opening characteristics

Roundabout design

Intersection design considerations

Railroad-highway grade crossings

Types of interchanges

Warrants for interchanges and grade separations



Titan Continuing Education, Inc. | 1519 Dale Mabry Hwy, Ste 201 Lutz, FL 33548 | Toll Free: 800.960.8858 | Email: .