28. IRC Method of Design of Flexible Pavements

Try these first

1. 1.

   What does CBR stand for?

   Hint

   It's a key term related to soil strength.

2. 2.

   List one type of flexible pavement.

   Hint

   Think of materials used at the surface level.

3. 3.

   What does IRC stand for in pavement design context?

   • Indian Road Congress
   • International Road Council
   • Indian Research Council

   Hint

   The answer is linked to the national body's role in road construction.

4. 4.

   True or False: The design of flexible pavements is solely based on empirical data.

   • True
   • False

   Hint

   Consider the shift in methodologies emphasized in the chapter.

5. 5.

   A new expressway is projected to have an initial traffic of 800 CVPD and grows at 10% annually. Calculate the cumulative design traffic over 20 years and discuss its implications for layer design.

   Hint

   Think about compounding interest in finances.

6. 6.

   Critically evaluate how varying CBR values influence the choice of granular and bituminous layers in flexible pavement design.

   Hint

   Consider material strength versus thickness.