Course description
In Roadway Geometric Design III - Intersections & Interchanges, you'll learn ...
- Elements of intersection design
- Types of grade-separation structures and where they are warranted
- Selection of the appropriate type of interchange and its essential elements
Overview
Credit: 4 PDH
Length: 52 pages
This 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.
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Upcoming start dates
Who should attend?
Certificate of Completion
You will be able to immediately print a certificate of completion after passing a multiple-choice quiz consisting of 30 questions. PDH credits are not awarded until the course is completed and quiz is passed.
Training content
This course teaches the following specific knowledge and skills:
- 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
- Underpasses
- Overpasses
Costs
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