FE Civil Exam Prep 73, Vertical Curves — Crest vs Sag, K-Value

This podcast is made by Ran Chen, who holds an EA license, Insurance and Securities licenses (Series 6, 63, 65), and the CFP® designation. He is passionate about opening access to high-quality exam preparation resources and helping learners prepare more effectively for professional certification exams. In this episode you will learn: - How to correctly apply the K-Value formula (L = K*A) to determine the required length of a vertical curve. - The key design difference between crest curves (stopping sight distance) and sag curves (headlight sight distance). - How to calculate 'A', the algebraic difference in grades, and avoid the common exam trap of using decimals instead of percentages. - The precise formula to locate the high or low point of a curve and why it's rarely at the midpoint. - A memorable mnemonic to distinguish between the primary design criteria for crest and sag curves. For more free exam prep tools, practice questions, and AI-powered explanations, visit https://open-exam-prep.com/ or YouTube Channel: https://www.youtube.com/@Open-exam-prep