27.2.1. Empirical design

Try these first

1. 1.

   What does empirical design rely on?

   Hint

   Think about how decisions are based on past experiences.

2. 2.

   Name one soil classification system mentioned in this section.

   Hint

   Check the different categories assigned to soils.

3. 3.

   What is the primary focus of empirical design?

   • Experimental data
   • Theoretical models
   • Visual inspection

   Hint

   Think about how practitioners build upon past experiences.

4. 4.

   True or False: The CBR test is only applicable for cement pavements.

   • True
   • False

   Hint

   Consider the versatility of soil strength tests.

5. 5.

   Discuss the impact of incorrect soil classification on pavement design. How might this lead to long-term failures?

   Hint

   Reflect on how soil properties affect load distribution.

6. 6.

   Given the CBR values of various soil types, propose an empirical design scheme for a flexible pavement. Justify your selections.

   Hint

   Use CBR values to guide your layer thickness decisions.