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Roadway Vertical Alignments

COURSE NO: C04-031
COURSE PROVIDER: Gregory Taylor, P.E.
Roadway Vertical Alignments
Course Highlights

This online engineering PDH course focuses on the geometric design of vertical alignments for modern roads and highways.


Roadway vertical alignments are a combination of various parabolic curves and connecting tangent grades. Along with the roadway cross section (lanes, shoulders, curbs, medians, roadside slopes, ditches and sidewalks) and horizontal alignment (tangents and curves), the vertical alignment (grades and vertical curves) helps provide a three-dimensional roadway model. Its ultimate goal is to provide a safe, smooth-flowing facility that is crash-free.


In today's environment, designers must do more than apply design standards and criteria to 'solve' a problem. They must understand how various roadway elements contribute to safety and facility operation, including the vertical profile.


This 4 PDH online course is applicable to traffic or transportation engineers interested in learning about the principles to be considered when designing roadway vertical alignments.

Learning Objectives

This PE continuing education course is intended to provide you with the following specific knowledge and skills:

  • Learning about sight Distance
    • Stopping
    • Decision
    • Passing
    • Intersection
  • Learning about vertical Alignment
    • Grades
    • Climbing lanes
    • Passing opportunities
    • Emergency escape ramps
  • Learning about vertical Curves
    • Sag
    • Crest
  • Learning about coordination of Horizontal & Vertical Curves
Course Document

In this professional engineering CEU course, you need to review the course document titled "Roadway Vertical Alignments". This course document is based exclusively on Chapter 3 (Section 3.4 Vertical Alignment) of the American Association of State Highway and Transportation Officials (AASHTO) publication, "A Policy on Geometric Design of Highways and Streets" (also known as the "Green Book").

To view, print and study the course document, please click on the following link(s):
Roadway Vertical Alignments (3.0 MB)
Course Quiz
Once you complete your course review, you need to take a multiple-choice quiz consisting of twenty (20) questions to earn 4 PDH credits. The quiz will be based on the entire course document.
The minimum passing score is 70%. There is no time limit on the quiz, and you can take it multiple times until you pass at no additional cost.
Certificate of Completion

Upon successful completion of the quiz, print your Certificate of Completion instantly. (Note: if you are paying by check or money order, you will be able to print it after we receive your payment.) For your convenience, we will also email it to you. Please note that you can log in to your account at any time to access and print your Certificate of Completion.

To buy the course and take the quiz, please click on: