In Roadway Geometric Design I - Functions, Controls & Alignments, you'll learn ...
- Functional classification of roadways
- Categories of roadway access control
- Stopping, passing and decision sight distance design
- Horizontal and vertical roadway alignment design
Credit: 4 PDH
Length: 54 pages
This course focuses on the geometric design process for modern roads and highways. Subjects covered include: highway functions (classification systems); design controls and criteria (design vehicles, highway capacity, traffic characteristics); and elements of design (sight distance, horizontal and vertical alignments). 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 1 through 3 – Highway Functions, Design Controls and Criteria, and Elements of Design will be used exclusively for fundamental roadway geometric design principles.
Upcoming start dates
- Self-paced Online
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.
This course teaches the following specific knowledge and skills:
- Roadway functional classification
- Design vehicle choices
- Driver performance
- Traffic characteristics
- Speed definitions
- Highway capacity
- Access control categories
- Pedestrian facilities
- Bicycle facilities
- Environmental influences
- Types of sight distance
- Horizontal alignment
- Vertical alignment
- Coordination of horizontal and vertical alignments
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