Civil Engineering PE

Category - Transportation

Which of the following reasons provides an explanation of why reverse circular curves are seldom used in roadway design?
  1. Design calculations are complex and contain too many variables to model
  2. The instantaneous change in direction would result in unsafe driving conditions and traveler discomfort
  3. Methods of construction for reverse circular curves are cost prohibitive
  4. All of the above
Explanation
Answer: B - The reason why reverse circular curves are seldom used in roadway design is that the instantaneous change in direction could result in an unsafe driving conditions and traveler discomfort. Although a very popular feature of roller coasters, the instantaneous curvature change of reverse circular curves does not allow sufficient space for a superelevation transition for cross-slopes.
Was this helpful? Upvote!
Login to contribute your own answer or details

Top questions

Related questions

Most popular on PracticeQuiz