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Transportation PE Practice Problem: Intersection Sight Distance Example
A common roadway design topic tested on the Transportation PE Exam is Intersection Sight Distance (ISD). Candidates are often required to determine the minimum sight distance needed for a vehicle entering or crossing a major roadway from a stop-controlled minor road. In this Transportation PE practice problem, we'll calculate the required intersection sight distance for a passenger car making a left turn onto a four-lane highway and discuss a common mistake that can cost valu
Andrea R
5 days ago2 min read


Transportation PE Exam Trap: Using the Wrong MUTCD Sign Size Table
Many Transportation PE examinees lose points not because they don't know the material, but because they use the wrong reference table.
A perfect example is determining the size of a speed limit sign.
Andrea R
Jun 63 min read


Transportation PE Horizontal Curve Practice Problem: Stopping Sight Distance with an Inside Obstruction
If you're preparing for the Transportation PE exam, you can expect to see 8-12 horizontal design problems on exam day per the NCEES CBT exam specifications. Horizontal curve geometry is a foundational topic in highway design and frequently appears in Transportation PE practice problems. One frequently overlooked Transportation PE topic is determining how a sight obstruction on the inside of a horizontal curve affects available stopping sight distance. This type of Transportat
Andrea R
Jun 13 min read


Rate of Vertical Curvature (K) Explained - Transportation PE Exam Concept
What Is the Rate of Vertical Curvature (K)? The rate of vertical curvature (K) is an important concept to understand before taking the Civil PE Transportation depth exam. It measures how smooth a roadway’s vertical curve transitions between two different grades. The formula for K is: Rate of vertical curvature formula Where: L = length of curve (ft) A = algebraic difference in grades (%) In simpler terms, K represents the length of curve per 1% change in grade. A higher K val
Andrea R
Oct 24, 20252 min read


Free Civil Transportation PE Practice Exam Problem: Stopping Sight Distance
A topic you might encounter on the Civil PE Transportation Exam is stopping sight distance (SSD). It may show up tied to vertical or horizontal alignment design problems. It's important to solve practice questions related to sight distance, perception–reaction time, and driver braking behavior. Here is one to help you prepare for the Civil Transportation PE exam: Problem A two-lane rural highway has a design speed of 50 mph.Assume a perception–reaction time of 2.5 seconds, an
Andrea R
Oct 10, 20252 min read
I Passed the Civil Transportation PE on the First Try - Here’s How I’d Study Differently
When I sat down for the Civil Transportation PE exam, I thought I was prepared. Eight hours later, I walked out tired but relieved, feeling like I’d done enough to pass. When the results came back and I saw “PASS,” I was ecstatic at the thought of not having to retake the test. But here’s the truth: even though I passed on my first try, there are severaL things I would do differently if I could go back and prepare again. I didn’t prepare as efficiently as I could have. If you
Andrea R
Sep 12, 20253 min read
Civil Transportation PE Exam Practice Problem: Traffic Control Design
One of the best ways to get ready for the Civil PE Transportation Exam is by working through practice problems that mirror what you’ll see on test day. Here’s a quick one on traffic control design. According to the NCEES exam specifications (as of April 2024), you can expect to see 5 - 8 traffic control design questions. This section of the exam can include questions about both temporary traffic control AND permanent signs and pavement markings. Problem According to the MUTCD
Andrea R
Sep 4, 20251 min read
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