Open-Graded Friction Course
Author: Gregory Taylor
This course presents an introduction to today’s roadway open-graded friction courses (OGFC). Participants will be given an in-depth look at the principles and potential trade-offs to be considered when selecting and designing OGFCs. By combining this course material with work experience and engineering judgment, the participant may produce plans beneficial to the traveling public. The contents of this document are intended to serve as guidance and not as an absolute standard or rule.
The primary objectives of this course are to:
- Provide technical information on open-graded friction courses
- Present their advantages and limitations
- Recommend factors to be considered when choosing an OGFC.
Some of the topics for consideration include: the advantages of using open-graded courses; safety benefits; noise reducing features; economic issues; service life; limitations or past problems; current OGFC mix design and usage; maintenance issues; real world examples; and European designs. The course research data will be used to provide material for generating any conclusions and recommendations for open-graded friction courses.
Once you complete your course review, you need to take a multiple-choice quiz consisting of ten (10) questions to earn 2 PDH credits
This course is intended to provide you with the following specific knowledge and skills:
- Become familiar with the benefits of OGFC
- Learn the safety aspects
- Recognize noise reduction features
- Understand higher costs and longer life cycles of OGFC
- Know OGFC limitations
- Be familiar with past problems
- Learn current uses of OGFC
- Become acquainted with State and European designs
Download the Course to review and begin earning your PDH credits.
We provide technical courses for PDH credits that meet Board requirements for Professional Engineers, Geologists and Land Surveyors. This courses is guaranteed to be accepted in AK, AL, AR, GA, IA, IL, ID, IN, KS, KY, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, OH, OK, OR, PA, SC, SD, TN, TX, UT, VA, VT, WI, WV, and WY. Before purchasing this course, please confirm that your state Board is listed above.