PE Exam Practice Problem #51: Transportation | Horizontal Curve

Welcome to SolvedIn6: Free practice problems for the Professional Engineering Exam! Each question is styled after those created by the NCEES, and is usually solved in under 6 minutes, which is the average time you will have to solve each question on the Professional Engineering Exam.
In this problem, we are asked to find the Point of Tangent, or PT for a horizontal curve. We are given Point of Intersection (PI), degree of curve, and deflection angle. Lets perform the following steps to get it done:
First, we need to know that PT = PC + Length of Tangent (L). Last I checked, this was not in the PE Reference Manual.
Next, go to the PE Reference Manual section for Horizontal Design. From the manual, find the equations for L, Radius, and Point of Curve (PC). Solve all of these equations and you will be able to solve for PT.
You will notice that this problem is exceptionally long for the PE. That is partially because I talk slowly and took over 3 minutes just to get started. During the exam you will likely be able to solve this faster if you drill it again and again.
If you would like more Transportation practice problems, please check out the rest of the playlist which this video is part of.
Please note that newer versions of the reference manual may have been released since this video was recorded. The search terms are usually still correct, but the page numbers listed in the video will be different.

[@alchemistapollo]

Thank you for the practice problem!

[@SolvedIn6]

You're welcome! Thanks for watching and best of luck to you if you're currently studying for the exam!