2. Exercises for Practice

Try these first

1. 1.

   What is a circular curve?

   Hint

   Think about how cars navigate sharp turns.

2. 2.

   What is super-elevation?

   Hint

   Remember how racetracks are built.

3. 3.

   What is the purpose of a transition curve?

   • To decrease speed
   • To connect straight and curved segments smoothly
   • To increase gradient

   Hint

   Think about driving from a straight road to a curve.

4. 4.

   True or False: Super-elevation is used to enhance vehicle traction during a turn.

   • True
   • False

   Hint

   Consider how banking helps cars maintain speed.

5. 5.

   Design a transition curve for a highway with a speed limit of 100 km/h. Assume the rate of change of radial acceleration is 0.35 m/s².

   Hint

   Look for the L = V² / (g * tan(θ)) formula to calculate length!

6. 6.

   Calculate the gradual length needed for a vertical parabolic curve connecting +3.0% and -1.5% gradients.

   Hint

   Use the arc length formula with gradient values!