17.2.5. Grade compensation

Try these first

1. 1.

   Define grade compensation.

   Hint

   Think about both gradient and curve interactions.

2. 2.

   What is the IRC specification for grade compensation under 4%?

   Hint

   Consider how traction is affected at different inclines.

3. 3.

   What is the maximum grade compensation allowed according to IRC?

   • 30%
   • 50%
   • 75%

   Hint

   Consider the IRC limits set on gradient ratios.

4. 4.

   Is grade compensation needed for gradients less than 4%?

   • True
   • False

   Hint

   Think about how slopes affect traction force.

5. 5.

   A road segment has a horizontal curve of radius 25 meters and a gradient of 8%. Determine the grade compensation and discuss its implications.

   Hint

   Consider the forces acting on the vehicle while navigating the curve.

6. 6.

   Design a road in a hilly terrain where curves are present. How would you incorporate grade compensation for multiple high gradients?

   Hint

   Think about adjustments for vehicle traction needing to be safe and efficient.