14.4. Analysis of super-elevation

Try these first

1. 1.

   What is super-elevation?

   Hint

   Think of how road design helps vehicles make turns safely.

2. 2.

   Name a force acting on a vehicle during a turn.

   Hint

   It pushes outward when turning.

3. 3.

   What does super-elevation aim to counteract?

   • Friction
   • Gravity
   • Centrifugal Force

   Hint

   Consider the forces involved when a vehicle turns.

4. 4.

   True or False: Higher speeds on curves require lower super-elevation.

   • True
   • False

   Hint

   Think about how centrifugal force changes with speed.

5. 5.

   A vehicle is moving at 25 m/s through a curve with a radius of 50 meters. Calculate the required super-elevation if friction coefficient is 0.15.

   Hint

   Convert speed into appropriate units and substitute into the equations.

6. 6.

   Analyze how the curve design changes if the terrain shifts from flat to mountainous. What implications does this have on super-elevation?

   Hint

   Consider friction and vehicle dynamics when recalculating super-elevation for safety.