Basics in Roadway Geometrics and Design
Credits: 8 PDH
PDH Course Description:
This course covers the procedures used to perform a roadway route survey. The course includes the reconnaissance, preliminary, and then the final location survey. Topics commonly found in a construction route survey are also covered.The geometric design of roads is then addressed; as well as pertinent design principles of geometric roadway design, used by transportation designers.
Topics:
- Planning and Preparation for the Proposed Route
- Performing reconnaissance, preliminary, and final location surveys
- Establishing preliminary design criteria and proposed road specs
- Using various existing map sources when establishing road corridor
- Types of data which are collected during a recon survey
- Horizontal Curves, Vertical Curves
- Introduction to the geometric design of roads
- Establishing curve points
- Compound and reverse curves, Transition spirals
- The use of stationing in a roadway route project
- Elements of a simple curve, formulas/solutions of a simple curve
- Degree of curve – Arc and Chord definitions and comparisons
- Layout of a curve; Dealing with terrain restrictions
- Compound, Reverse, spiral curves
- Sag and Crest curve types
- Using high / low points on a vertical curve to establish drainage
- Basic Roadway Design Features; Classification of roads/highways
- Intersections and interchanges; Superelevation of curves
- Stopping, Passing, Intersection sight distances, Design Speeds
- Perception-Reaction/Maneuver time; Level of Service
To take this course:
1.) Enroll in Course: Click below to enroll:
(must be logged into your user account)
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 Roadway, Transportation, Civil, Hydraulic and other engineers whose job description may require a general knowledge of roadway geometrics and design procedures.
Publication Source: Based on original courseware by Donald W. Parnell, PE (derived from the USACE FM-233 and the Georgia DOT Design Policy Manual)
Print the Certificate of Completion
Intended Audience: This course is intended for Roadway, Transportation, Civil, Hydraulic and other engineers whose job description may require a general knowledge of roadway geometrics and design procedures.
Publication Source: Based on original courseware by Donald W. Parnell, PE (derived from the USACE FM-233 and the Georgia DOT Design Policy Manual)
Donald Parnell, PE