Topic outline

  • Surveying Principles: Horizontal / Vertical Curves

    Credits: 3 PDH

    Course Description:

    This course provides a thorough knowledge of the properties and behavior of horizontal and vertical curves used in highway work, mainly in the use of laying out the alignment of a proposed roadway.

    The center alignment of a road consists of a series of straight lines interconnected by curves that are used to change the alignment, direction, or slope of the road. Those curves that change the alignment or direction are known as horizontal curves, and those that change the slope are vertical curves.

    Topics:

    • Types and Elements of Horizontal and Vertical Curves
    • Degree of Curvature (Arc and Chord definitions)
    • Curve Formulas
    • Tangent / Chord Distance
    • Length of Curve
    • Middle Ordinate, External Distance
    • Deflection Angles and Chords
    • Solving and Laying Out a Simple Curve
    • Inputting Field Notes
    • Vertical Curve Grades, Gradients
    • Symmetrical and Asymmetrical Curves
    • Checking Computations by Plotting
    • Using a Plan and Profile Worksheet
    • Field Stakeout of Vertical Curves

    To take this course:

    1.) Enroll in Course: Click below to enroll:
    (must be logged into your user account)


    2.) Study: Once enrolled, click below to begin the course:

    Download the Study Guide

    3.) Test: Once you've thoroughly read the course materials, please click below to take the final examination.

    Take the final exam

    4.) Certificate: A passing grade of 70% or higher on the exam, is required to receive the certificate of completion for this PDH course.
         NOTE: After the exam is completed, you will need to return to this page, in order to print (download) the certificate of completion.

    Print the Certificate of Completion

    Intended Audience: This course is intended for Transportation, Civil, Geotechnical, Construction, Architectural, Water Resources, and other engineers whose job description requires a basic knowledge of surveying principles and methods used in roadway construction and design.
    Publication Source: US Navy (NAVEDTRA)

    Donald Parnell, PE

    • Topic 1